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class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Retejo"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Enhavo" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Enhavo</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">movigi al flanka panelo</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">kaŝi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Komenco</div> </a> </li> <li id="toc-Simplaj_ekzemploj" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Simplaj_ekzemploj"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Simplaj ekzemploj</span> </div> </a> <button aria-controls="toc-Simplaj_ekzemploj-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Baskuli Simplaj ekzemploj subsekcio</span> </button> <ul id="toc-Simplaj_ekzemploj-sublist" class="vector-toc-list"> <li id="toc-Unukolora_bildo_(nigra_–_griza_–_blanka)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Unukolora_bildo_(nigra_–_griza_–_blanka)"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Unukolora bildo (nigra – griza – blanka)</span> </div> </a> <ul id="toc-Unukolora_bildo_(nigra_–_griza_–_blanka)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Plurkolora_bildo" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Plurkolora_bildo"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Plurkolora bildo</span> </div> </a> <ul id="toc-Plurkolora_bildo-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Karakterizoj_de_bildo" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Karakterizoj_de_bildo"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Karakterizoj de bildo</span> </div> </a> <ul id="toc-Karakterizoj_de_bildo-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Avantaĝoj" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Avantaĝoj"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Avantaĝoj</span> </div> </a> <ul id="toc-Avantaĝoj-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Malavantaĝoj" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Malavantaĝoj"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Malavantaĝoj</span> </div> </a> <ul id="toc-Malavantaĝoj-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Formoj" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Formoj"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Formoj</span> </div> </a> <button aria-controls="toc-Formoj-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Baskuli Formoj subsekcio</span> </button> <ul id="toc-Formoj-sublist" class="vector-toc-list"> <li id="toc-Densigo_sen_perdo" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Densigo_sen_perdo"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Densigo sen perdo</span> </div> </a> <ul id="toc-Densigo_sen_perdo-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Densigo_kun_perdo" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Densigo_kun_perdo"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Densigo kun perdo</span> </div> </a> <ul id="toc-Densigo_kun_perdo-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Vidu_ankaŭ" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Vidu_ankaŭ"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Vidu ankaŭ</span> </div> </a> <ul id="toc-Vidu_ankaŭ-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Enhavo" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Ŝaltu la enhavtabelon" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Ŝaltu la enhavtabelon</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Rastruma bildo</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Iru al artikolo en alia lingvo. Havebla en 56 lingvo" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-56" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">56 lingvoj</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B1%D8%B3%D9%88%D9%85%D9%8A%D8%A7%D8%AA_%D9%86%D9%82%D8%B7%D9%8A%D8%A9" title="رسوميات نقطية — araba" lang="ar" hreflang="ar" data-title="رسوميات نقطية" data-language-autonym="العربية" data-language-local-name="araba" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Rastr_t%C9%99svir" title="Rastr təsvir — azerbajĝana" lang="az" hreflang="az" data-title="Rastr təsvir" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajĝana" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D1%80%D0%B0%D0%B2%D0%B0%D1%8F_%D0%B3%D1%80%D0%B0%D1%84%D1%96%D0%BA%D0%B0" title="Растравая графіка — belorusa" lang="be" hreflang="be" data-title="Растравая графіка" data-language-autonym="Беларуская" data-language-local-name="belorusa" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D1%80%D0%B0%D0%B2%D0%B0%D1%8F_%D0%B3%D1%80%D0%B0%D1%84%D1%96%D0%BA%D0%B0" title="Растравая графіка — Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Растравая графіка" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D0%B5%D1%80%D0%BD%D0%B0_%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%BA%D0%B0" title="Растерна графика — bulgara" lang="bg" hreflang="bg" data-title="Растерна графика" data-language-autonym="Български" data-language-local-name="bulgara" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B0%E2%80%8C%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B8%E0%A7%8D%E0%A6%9F%E0%A6%BE%E0%A6%B0_%E0%A6%97%E0%A7%8D%E0%A6%B0%E0%A6%BE%E0%A6%AB%E0%A6%BF%E0%A6%95%E0%A7%8D%E0%A6%B8" title="র‌্যাস্টার গ্রাফিক্স — bengala" lang="bn" hreflang="bn" data-title="র‌্যাস্টার গ্রাফিক্স" data-language-autonym="বাংলা" data-language-local-name="bengala" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Rasterska_grafika" title="Rasterska grafika — bosna" lang="bs" hreflang="bs" data-title="Rasterska grafika" data-language-autonym="Bosanski" data-language-local-name="bosna" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Mapa_de_bits" title="Mapa de bits — kataluna" lang="ca" hreflang="ca" data-title="Mapa de bits" data-language-autonym="Català" data-language-local-name="kataluna" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Rastrov%C3%A1_grafika" title="Rastrová grafika — ĉeĥa" lang="cs" hreflang="cs" data-title="Rastrová grafika" data-language-autonym="Čeština" data-language-local-name="ĉeĥa" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Rasterbillede" title="Rasterbillede — dana" lang="da" hreflang="da" data-title="Rasterbillede" data-language-autonym="Dansk" data-language-local-name="dana" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Rastergrafik" title="Rastergrafik — germana" lang="de" hreflang="de" data-title="Rastergrafik" data-language-autonym="Deutsch" data-language-local-name="germana" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Raster_graphics" title="Raster graphics — angla" lang="en" hreflang="en" data-title="Raster graphics" data-language-autonym="English" data-language-local-name="angla" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Imagen_de_mapa_de_bits" title="Imagen de mapa de bits — hispana" lang="es" hreflang="es" data-title="Imagen de mapa de bits" data-language-autonym="Español" data-language-local-name="hispana" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Rastergraafika" title="Rastergraafika — estona" lang="et" hreflang="et" data-title="Rastergraafika" data-language-autonym="Eesti" data-language-local-name="estona" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Raster_irudi" title="Raster irudi — eŭska" lang="eu" hreflang="eu" data-title="Raster irudi" data-language-autonym="Euskara" data-language-local-name="eŭska" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%AF%D8%B1%D8%A7%D9%81%DB%8C%DA%A9_%D8%B4%D8%B7%D8%B1%D9%86%D8%AC%DB%8C" title="گرافیک شطرنجی — persa" lang="fa" hreflang="fa" data-title="گرافیک شطرنجی" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Bittikarttagrafiikka" title="Bittikarttagrafiikka — finna" lang="fi" hreflang="fi" data-title="Bittikarttagrafiikka" data-language-autonym="Suomi" data-language-local-name="finna" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Image_matricielle" title="Image matricielle — franca" lang="fr" hreflang="fr" data-title="Image matricielle" data-language-autonym="Français" data-language-local-name="franca" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Grafaic_rastair" title="Grafaic rastair — irlanda" lang="ga" hreflang="ga" data-title="Grafaic rastair" data-language-autonym="Gaeilge" data-language-local-name="irlanda" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Imaxe_de_mapa_de_bits" title="Imaxe de mapa de bits — galega" lang="gl" hreflang="gl" data-title="Imaxe de mapa de bits" data-language-autonym="Galego" data-language-local-name="galega" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%AA%D7%9E%D7%95%D7%A0%D7%AA_%D7%9E%D7%A4%D7%AA_%D7%A1%D7%99%D7%91%D7%99%D7%95%D7%AA" title="תמונת מפת סיביות — hebrea" lang="he" hreflang="he" data-title="תמונת מפת סיביות" data-language-autonym="עברית" data-language-local-name="hebrea" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Rasterska_slika" title="Rasterska slika — kroata" lang="hr" hreflang="hr" data-title="Rasterska slika" data-language-autonym="Hrvatski" data-language-local-name="kroata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Rasztergrafika" title="Rasztergrafika — hungara" lang="hu" hreflang="hu" data-title="Rasztergrafika" data-language-autonym="Magyar" data-language-local-name="hungara" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8A%D5%A1%D5%BF%D5%AF%D5%A5%D6%80%D5%A1%D6%81%D5%A1%D5%B6%D6%81%D5%A1%D5%B5%D5%AB%D5%B6_%D5%A3%D6%80%D5%A1%D6%86%D5%AB%D5%AF%D5%A1" title="Պատկերացանցային գրաֆիկա — armena" lang="hy" hreflang="hy" data-title="Պատկերացանցային գրաֆիկա" data-language-autonym="Հայերեն" data-language-local-name="armena" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Gambar_bitmap" title="Gambar bitmap — indonezia" lang="id" hreflang="id" data-title="Gambar bitmap" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezia" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Grafiko_rastrala" title="Grafiko rastrala — Ido" lang="io" hreflang="io" data-title="Grafiko rastrala" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Rastamynd" title="Rastamynd — islanda" lang="is" hreflang="is" data-title="Rastamynd" data-language-autonym="Íslenska" data-language-local-name="islanda" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Grafica_raster" title="Grafica raster — itala" lang="it" hreflang="it" data-title="Grafica raster" data-language-autonym="Italiano" data-language-local-name="itala" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%93%E3%83%83%E3%83%88%E3%83%9E%E3%83%83%E3%83%97%E7%94%BB%E5%83%8F" title="ビットマップ画像 — japana" lang="ja" hreflang="ja" data-title="ビットマップ画像" data-language-autonym="日本語" data-language-local-name="japana" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A0%E1%83%90%E1%83%A1%E1%83%A2%E1%83%A0%E1%83%A3%E1%83%9A%E1%83%98_%E1%83%92%E1%83%90%E1%83%9B%E1%83%9D%E1%83%A1%E1%83%90%E1%83%AE%E1%83%A3%E1%83%9A%E1%83%94%E1%83%91%E1%83%90" title="რასტრული გამოსახულება — kartvela" lang="ka" hreflang="ka" data-title="რასტრული გამოსახულება" data-language-autonym="ქართული" data-language-local-name="kartvela" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D1%80%D0%BB%D1%8B%D2%9B_%D0%BA%D0%B5%D1%81%D0%BA%D1%96%D0%BD" title="Растрлық кескін — kazaĥa" lang="kk" hreflang="kk" data-title="Растрлық кескін" data-language-autonym="Қазақша" data-language-local-name="kazaĥa" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%9E%98%EC%8A%A4%ED%84%B0_%EA%B7%B8%EB%9E%98%ED%94%BD%EC%8A%A4" title="래스터 그래픽스 — korea" lang="ko" hreflang="ko" data-title="래스터 그래픽스" data-language-autonym="한국어" data-language-local-name="korea" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Ta%C5%A1kin%C4%97_grafika" title="Taškinė grafika — litova" lang="lt" hreflang="lt" data-title="Taškinė grafika" data-language-autonym="Lietuvių" data-language-local-name="litova" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Rastra_grafika" title="Rastra grafika — latva" lang="lv" hreflang="lv" data-title="Rastra grafika" data-language-autonym="Latviešu" data-language-local-name="latva" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mhr mw-list-item"><a href="https://mhr.wikipedia.org/wiki/%D0%93%D1%80%D0%B0%D1%84%D0%B8%D0%BA%D0%B5_%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%86%D0%B8%D0%B9%D1%8B%D0%BC_%D1%80%D0%B0%D1%81%D1%82%D1%80%D0%BB%D0%B5_%D0%BA%D0%BE%D0%B4%D0%BB%D1%8B%D0%BC%D0%B0%D1%88" title="Графике информацийым растрле кодлымаш — Eastern Mari" lang="mhr" hreflang="mhr" data-title="Графике информацийым растрле кодлымаш" data-language-autonym="Олык марий" data-language-local-name="Eastern Mari" class="interlanguage-link-target"><span>Олык марий</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Grafik_raster" title="Grafik raster — malaja" lang="ms" hreflang="ms" data-title="Grafik raster" data-language-autonym="Bahasa Melayu" data-language-local-name="malaja" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/Bit_map" title="Bit map — birma" lang="my" hreflang="my" data-title="Bit map" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birma" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Rasterafbeelding" title="Rasterafbeelding — nederlanda" lang="nl" hreflang="nl" data-title="Rasterafbeelding" data-language-autonym="Nederlands" data-language-local-name="nederlanda" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Rastergrafikk" title="Rastergrafikk — dannorvega" lang="nb" hreflang="nb" data-title="Rastergrafikk" data-language-autonym="Norsk bokmål" data-language-local-name="dannorvega" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Grafika_rastrowa" title="Grafika rastrowa — pola" lang="pl" hreflang="pl" data-title="Grafika rastrowa" data-language-autonym="Polski" data-language-local-name="pola" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Raster" title="Raster — portugala" lang="pt" hreflang="pt" data-title="Raster" data-language-autonym="Português" data-language-local-name="portugala" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B2%D0%B0%D1%8F_%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%BA%D0%B0" title="Растровая графика — rusa" lang="ru" hreflang="ru" data-title="Растровая графика" data-language-autonym="Русский" data-language-local-name="rusa" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Rasterska_grafika" title="Rasterska grafika — serbo-Kroata" lang="sh" hreflang="sh" data-title="Rasterska grafika" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-Kroata" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Raster_graphics" title="Raster graphics — Simple English" lang="en-simple" hreflang="en-simple" data-title="Raster graphics" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Rastrov%C3%A1_grafika" title="Rastrová grafika — slovaka" lang="sk" hreflang="sk" data-title="Rastrová grafika" data-language-autonym="Slovenčina" data-language-local-name="slovaka" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Rastrska_grafika" title="Rastrska grafika — slovena" lang="sl" hreflang="sl" data-title="Rastrska grafika" data-language-autonym="Slovenščina" data-language-local-name="slovena" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D0%B5%D1%80%D1%81%D0%BA%D0%B0_%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%BA%D0%B0" title="Растерска графика — serba" lang="sr" hreflang="sr" data-title="Растерска графика" data-language-autonym="Српски / srpski" data-language-local-name="serba" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Gambar_bitmap" title="Gambar bitmap — sunda" lang="su" hreflang="su" data-title="Gambar bitmap" data-language-autonym="Sunda" data-language-local-name="sunda" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Rastergrafik" title="Rastergrafik — sveda" lang="sv" hreflang="sv" data-title="Rastergrafik" data-language-autonym="Svenska" data-language-local-name="sveda" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A0%E0%B8%B2%E0%B8%9E%E0%B8%81%E0%B8%A3%E0%B8%B2%E0%B8%9F%E0%B8%B4%E0%B8%81%E0%B8%AA%E0%B9%8C%E0%B9%81%E0%B8%A3%E0%B8%AA%E0%B9%80%E0%B8%95%E0%B8%AD%E0%B8%A3%E0%B9%8C" title="ภาพกราฟิกส์แรสเตอร์ — taja" lang="th" hreflang="th" data-title="ภาพกราฟิกส์แรสเตอร์" data-language-autonym="ไทย" data-language-local-name="taja" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Grapikong_raster" title="Grapikong raster — tagaloga" lang="tl" hreflang="tl" data-title="Grapikong raster" data-language-autonym="Tagalog" data-language-local-name="tagaloga" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Raster_grafik" title="Raster grafik — turka" lang="tr" hreflang="tr" data-title="Raster grafik" data-language-autonym="Türkçe" data-language-local-name="turka" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A0%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B2%D0%B0_%D0%B3%D1%80%D0%B0%D1%84%D1%96%D0%BA%D0%B0" title="Растрова графіка — ukraina" lang="uk" hreflang="uk" data-title="Растрова графіка" data-language-autonym="Українська" data-language-local-name="ukraina" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BB%93_h%E1%BB%8Da_raster" title="Đồ họa raster — vjetnama" lang="vi" hreflang="vi" data-title="Đồ họa raster" data-language-autonym="Tiếng Việt" data-language-local-name="vjetnama" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E4%BD%8D%E5%9B%BE" title="位图 — ĉina" lang="zh" hreflang="zh" data-title="位图" data-language-autonym="中文" data-language-local-name="ĉina" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E9%BB%9E%E9%99%A3%E5%9C%96" title="點陣圖 — kantona" lang="yue" hreflang="yue" data-title="點陣圖" data-language-autonym="粵語" data-language-local-name="kantona" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q182270#sitelinks-wikipedia" title="Redakti interlingvajn ligilojn" class="wbc-editpage">Redakti ligilojn</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Nomspacoj"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Rastruma_bildo" title="Vidi la artikolon [c]" accesskey="c"><span>Artikolo</span></a></li><li id="ca-talk" class="new 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vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Iloj</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">movigi al flanka panelo</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">kaŝi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Pliaj opcioj" > <div class="vector-menu-heading"> Agoj </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Rastruma_bildo"><span>Legi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&veaction=edit" title="Redakti ĉi tiun paĝon [v]" accesskey="v"><span>Redakti</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&action=edit" title="Redakti fontan kodon de tiu ĉi paĝo [e]" accesskey="e"><span>Redakti fonton</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&action=history"><span>Vidi historion</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Ĝenerale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciala%C4%B5o:Kio_ligas_%C4%89i_tien%3F/Rastruma_bildo" title="Listo de ĉiuj vikiaj paĝoj kiuj ligas ĉi tien [j]" accesskey="j"><span>Ligiloj ĉi tien</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciala%C4%B5o:Rilataj_%C5%9Dan%C4%9Doj/Rastruma_bildo" rel="nofollow" title="Lastaj ŝanĝoj en paĝoj kiuj ligas al ĉi tiu paĝo [k]" accesskey="k"><span>Rilataj ŝanĝoj</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=eo" title="Alŝuti dosierojn [u]" accesskey="u"><span>Alŝuti dosieron</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciala%C4%B5o:Specialaj_pa%C4%9Doj" title="Listo de ĉiuj specialaj paĝoj [q]" accesskey="q"><span>Specialaj paĝoj</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&oldid=8867183" title="Porĉiama ligilo al ĉi versio de la paĝo"><span>Konstanta ligilo</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&action=info" title="Pli da informo pri ĉi tiu paĝo"><span>Informoj pri la paĝo</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciala%C4%B5o:Citi&page=Rastruma_bildo&id=8867183&wpFormIdentifier=titleform" title="Informoj pri kiel citi ĉi tiun paĝon"><span>Citi ĉi tiun artikolon</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciala%C4%B5o:UrlShortener&url=https%3A%2F%2Feo.wikipedia.org%2Fwiki%2FRastruma_bildo"><span>Akiri mallongigitan URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speciala%C4%B5o:QrCode&url=https%3A%2F%2Feo.wikipedia.org%2Fwiki%2FRastruma_bildo"><span>Elŝutu QR-kodon</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Presi/elporti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speciala%C4%B5o:Libro&bookcmd=book_creator&referer=Rastruma+bildo"><span>Krei libron</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Speciala%C4%B5o:DownloadAsPdf&page=Rastruma_bildo&action=show-download-screen"><span>Elŝuti kiel PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Rastruma_bildo&printable=yes" title="Presebla versio de tiu ĉi paĝo [p]" accesskey="p"><span>Presebla versio</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> En aliaj projektoj </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Raster_graphics" hreflang="en"><span>Vikimedia Komunejo</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q182270" title="Ligilo al konektita datuma ero [g]" accesskey="g"><span>Ero en Vikidatumoj</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Paĝaj iloj"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspekto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspekto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">movigi al flanka panelo</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">kaŝi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">El Vikipedio, la libera enciklopedio</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="eo" dir="ltr"><p><b>Rastruma bildo</b> estas <a href="/wiki/Bildo" title="Bildo">bildo</a>, farita kiel <a href="/wiki/Dimensio" title="Dimensio">dudimensia</a> aro de <a href="/wiki/Rastrumero" title="Rastrumero">rastrumeroj</a> (plejofte kvadratetoj), do priskribata per dudimensia <a href="/wiki/Tabelo" title="Tabelo">tabelo</a> de <a href="/wiki/Nombro" title="Nombro">nombroj</a>. Ĉiu nombro signifas helecon de respektiva kvadrateta ero de la bildo. Kutime oni kreas rastrumajn bildojn per <a href="/wiki/Skanado" title="Skanado">skaniloj</a>, <a href="/w/index.php?title=Fotiloj&action=edit&redlink=1" class="new" title="Fotiloj (paĝo ne ekzistas)">fotiloj</a>, rekta redaktado en rastrumaj redaktiloj, eksporto el <a href="/w/index.php?title=Vektoraj_redaktoroj&action=edit&redlink=1" class="new" title="Vektoraj redaktoroj (paĝo ne ekzistas)">vektoraj redaktoroj</a>, memorigo de ekrano, specialaj maŝinoj (ekzemple <a href="/wiki/Tomografio" title="Tomografio">tomografiiloj</a> en kuracado) ktp. Oni redaktas rastrumajn bildojn per rastrumaj redaktiloj. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Simplaj_ekzemploj">Simplaj ekzemploj</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=1" title="Redakti sekcion: Simplaj ekzemploj" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=1" title="Redakti la fontkodo de la sekcio: Simplaj ekzemploj"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Unukolora_bildo_(nigra_–_griza_–_blanka)"><span id="Unukolora_bildo_.28nigra_.E2.80.93_griza_.E2.80.93_blanka.29"></span>Unukolora bildo (nigra – griza – blanka)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=2" title="Redakti sekcion: Unukolora bildo (nigra – griza – blanka)" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=2" title="Redakti la fontkodo de la sekcio: Unukolora bildo (nigra – griza – blanka)"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ekzemplo kiel oni priskribas unukoloran (<a href="/wiki/Nigra" class="mw-redirect" title="Nigra">nigran</a> - <a href="/wiki/Griza" title="Griza">grizan</a> - <a href="/wiki/Blanka" class="mw-redirect" title="Blanka">blankan</a>) cirkleton de 10*10 kvadratetoj: </p><p><span class="mw-default-size" typeof="mw:File"><a href="/wiki/Dosiero:Komp_grafiko1.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/c/ca/Komp_grafiko1.png" decoding="async" width="500" height="240" class="mw-file-element" data-file-width="500" data-file-height="240" /></a></span> </p><p>Kutime nombro 0 signifas la nigran kaj nombro 255 signifas la blankan koloron. </p> <div class="mw-heading mw-heading3"><h3 id="Plurkolora_bildo">Plurkolora bildo</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=3" title="Redakti sekcion: Plurkolora bildo" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=3" title="Redakti la fontkodo de la sekcio: Plurkolora bildo"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Por koloraj bildoj por ĉiu kvadrateto oni uzas kelkajn nombrojn. Estas diversaj sistemoj de tio, kion signifas ĉi tiuj kelkaj nombroj. </p><p>En la plej simpla sistemo ili estas tri kaj signifas <a href="/wiki/Heleco" title="Heleco">helecojn</a> de ruĝa, verda kaj blua partoj de la <a href="/wiki/Koloro" title="Koloro">koloro</a> (RGB-sistemo, laŭ la unuaj literoj de la anglaj kolornomoj <i>red</i>, <i>green</i> kaj <i>blue</i>). </p><p>Ekzemplo kiel estas priskribita plenkolora bildeto de 5*5 kvadratetoj (ĉiu trio de nombroj estas ruĝa, verda kaj blua partoj de la koloro): </p><p><span class="mw-default-size" typeof="mw:File"><a href="/wiki/Dosiero:Komp_grafiko2.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/b/bb/Komp_grafiko2.png" decoding="async" width="500" height="240" class="mw-file-element" data-file-width="500" data-file-height="240" /></a></span> </p><p><a href="/wiki/Komputila_ekrano" title="Komputila ekrano">Komputila ekrano</a> estas rastruma bildo kun kutimaj grandoj 640x480, 800x600, 1024x768 ktp. </p> <div class="mw-heading mw-heading2"><h2 id="Karakterizoj_de_bildo">Karakterizoj de bildo</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=4" title="Redakti sekcion: Karakterizoj de bildo" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=4" title="Redakti la fontkodo de la sekcio: Karakterizoj de bildo"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Gravaj karakterizoj de bildo estas: </p> <ul><li>kvanto de rastrumeroj, kutime oni prezentas kun kvanto de rastrumeroj laŭ larĝeco kaj alteco (ekzemple 1024×768, 640×480 ktp);</li> <li>kvanto de koloroj uzataj aŭ <a href="/w/index.php?title=Profundeco_de_koloro&action=edit&redlink=1" class="new" title="Profundeco de koloro (paĝo ne ekzistas)">profundeco de koloro</a> (kiuj dependas unu de alia tiumaniere: <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle N=2^{k}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>N</mi> <mo>=</mo> <msup> <mn>2</mn> <mrow class="MJX-TeXAtom-ORD"> <mi>k</mi> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle N=2^{k}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d26d20405d551107a29015b4b211774c79b8825a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:7.413ex; height:2.676ex;" alt="{\displaystyle N=2^{k}}"></span>, kie <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle N}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>N</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle N}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f5e3890c981ae85503089652feb48b191b57aae3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.064ex; height:2.176ex;" alt="{\displaystyle N}"></span> estas kvanto de koloroj, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle k}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>k</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle k}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c3c9a2c7b599b37105512c5d570edc034056dd40" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.211ex; height:2.176ex;" alt="{\displaystyle k}"></span> estas profundeco de koloro); ekzemple se kvanto de koloroj estas 256, la profundeco de koloroj estas 8;</li> <li>kolora spaco (kolora modelo) povas esti <a href="/wiki/RGB" class="mw-redirect" title="RGB">RGB</a>, <a href="/wiki/CMYK" class="mw-redirect" title="CMYK">CMYK</a>, <a href="/w/index.php?title=XYZ&action=edit&redlink=1" class="new" title="XYZ (paĝo ne ekzistas)">XYZ</a>, <a href="/w/index.php?title=YCbCr&action=edit&redlink=1" class="new" title="YCbCr (paĝo ne ekzistas)">YCbCr</a> kaj aliaj;</li></ul> <div class="mw-heading mw-heading2"><h2 id="Avantaĝoj"><span id="Avanta.C4.9Doj"></span>Avantaĝoj</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=5" title="Redakti sekcion: Avantaĝoj" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=5" title="Redakti la fontkodo de la sekcio: Avantaĝoj"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Rastruma grafiko ebligas krei praktike iun ajn bildon sendepende de komplekseco, distinge de <a href="/wiki/Vektora_grafiko" class="mw-redirect" title="Vektora grafiko">Vektora grafiko</a>, en kiu ne eblas prezenti transiron de unu koloro al alia sen malgajno en amplekso de dosiero.</li> <li>Disvastigo: rastruman grafikon oni uzas ĉie: de signetoj al afiŝoj.</li> <li>Rapida prilaboro de kompleksaj bildoj (se ne necesas skalado).</li> <li>Rastruma prezento estas natura por la plimulto de <a href="/w/index.php?title=En/eliga_dispona%C4%B5o&action=edit&redlink=1" class="new" title="En/eliga disponaĵo (paĝo ne ekzistas)">en/eligaj disponaĵoj</a> por grafika informo kiel <a href="/wiki/Ekrano" class="mw-disambig" title="Ekrano">ekranoj</a>, <a href="/wiki/Printilo" class="mw-redirect" title="Printilo">printiloj</a>, <a href="/wiki/Fotilo" title="Fotilo">fotiloj</a>, <a href="/wiki/Skanilo" title="Skanilo">skaniloj</a>, <a href="/wiki/Po%C5%9Dtelefono" title="Poŝtelefono">poŝtelefonoj</a> ktp.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Malavantaĝoj"><span id="Malavanta.C4.9Doj"></span>Malavantaĝoj</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=6" title="Redakti sekcion: Malavantaĝoj" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=6" title="Redakti la fontkodo de la sekcio: Malavantaĝoj"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Granda amplekso de dosiero eĉ ĉe simplaj bildoj.</li> <li>Ne eblas ideale skali.</li> <li>Ne eblas eligi per <a href="/w/index.php?title=Desegnilo&action=edit&redlink=1" class="new" title="Desegnilo (paĝo ne ekzistas)">desegnilo</a>.</li></ul> <p>Pro tiuj malavantaĝoj oni rekomendas por simplaj bildoj uzi <a href="/wiki/Vektora_bildo" title="Vektora bildo">vektoran bildon</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Formoj">Formoj</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=7" title="Redakti sekcion: Formoj" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=7" title="Redakti la fontkodo de la sekcio: Formoj"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Oni konservas rastrumajn bildojn kutime en densigita formo. Depende de tipo de densigo eblas aŭ ne eblas restaŭri la bildon ekzakte tia, kia estis antaŭ densigo (densigo sen perdo aŭ densigo kun perdo). Krome la grafika dosiero povas enhavi aldonan informon: pri aŭtoro de dosiero, fotilo kaj ĝiaj agordoj, kvanto de punktoj en colo ĉe printado ktp. </p> <div class="mw-heading mw-heading3"><h3 id="Densigo_sen_perdo">Densigo sen perdo</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=8" title="Redakti sekcion: Densigo sen perdo" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=8" title="Redakti la fontkodo de la sekcio: Densigo sen perdo"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Oni uzas algoritmojn de densigo bazataj sur malpliigo de superfluo de informo . </p> <ul><li><a href="/wiki/BMP" class="mw-disambig" title="BMP">BMP</a> aŭ <a href="/w/index.php?title=Windows_Bitmap&action=edit&redlink=1" class="new" title="Windows Bitmap (paĝo ne ekzistas)">Windows Bitmap</a> kutime oni uzas ĝin sen densigo, kvankam eblas uzi kodadon RLE .</li> <li><a href="/wiki/Graphics_Interchange_Format" class="mw-redirect" title="Graphics Interchange Format">GIF</a> (Formao por interŝanĝo de grafiko) estas arĥaika formo, kiu subtenas maksimume 256 kolorojn samtempe. GIF estas tamen populara pro subteno de <a href="/wiki/Animacio" title="Animacio">animacio</a>, kiu mankas en la pura <a href="/wiki/Portable_Network_Graphics" class="mw-redirect" title="Portable Network Graphics">PNG</a>, kvankam la <a href="/wiki/Programaro" title="Programaro">programaro</a> komencas subteni animacian <a href="/wiki/PNG" title="PNG">PNG</a>.</li> <li><a href="/wiki/PCX" class="mw-redirect" title="PCX">PCX</a> estas arĥaika formo, kiu ebligas bone densigi desegnaĵojn (grupojn de egalaj laŭvicaj rastrumoj oni substituis kun kvanto de rastrumoj kaj ilia koloro).</li> <li><a href="/wiki/Portable_Network_Graphics" class="mw-redirect" title="Portable Network Graphics">PNG</a> (Portebla Reta Grafiko).</li></ul> <div class="mw-heading mw-heading3"><h3 id="Densigo_kun_perdo">Densigo kun perdo</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=9" title="Redakti sekcion: Densigo kun perdo" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=9" title="Redakti la fontkodo de la sekcio: Densigo kun perdo"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Bazita sur forigo de parto de informo (kutime apenaŭ perceptata de okulo). </p> <ul><li><a href="/wiki/JPEG" title="JPEG">JPEG</a> estas tre vaste uzata formo. La densigo estas bazita sur mezigo de koloro de najbaraj rastrumeroj (informon pri heleco oni ne mezigas) kaj forigo de altfrekvencaj komponentoj de la spaca spektro de fragmento de la bildo. Ĉe detala rigardo de forte densigita bildo oni rimarkas erozion de akraj randoj kaj tipan muaron en ĝia proksimeco.</li> <li><a href="/w/index.php?title=TIFF&action=edit&redlink=1" class="new" title="TIFF (paĝo ne ekzistas)">TIFF</a> subtenas grandan diapazonon de profundeco de koloroj, diversajn kolorajn spacojn, diversajn tipojn de densigo (kun perdo kaj sen perdo) ktp.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Vidu_ankaŭ"><span id="Vidu_anka.C5.AD"></span>Vidu ankaŭ</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Rastruma_bildo&veaction=edit&section=10" title="Redakti sekcion: Vidu ankaŭ" class="mw-editsection-visualeditor"><span>redakti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Rastruma_bildo&action=edit&section=10" title="Redakti la fontkodo de la sekcio: Vidu ankaŭ"><span>redakti fonton</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Vektora_bildo" title="Vektora bildo">Vektora bildo</a></li> <li><a href="/wiki/Alfokanalo" title="Alfokanalo">Alfokanalo</a></li> <li><a href="/wiki/Algoritmo_de_Bresenham" title="Algoritmo de Bresenham">Algoritmo de Bresenham</a></li></ul> <div class="noprint" id="aliaj_projektoj" style="float: right; clear: right; width: 250px; border: 1px solid #aaa; padding: 4px; font-size: 90%; background: #f9f9f9;"> <ul class="noarchive"><li class="commons"><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Raster_graphics?uselang=eo">Kategorio Rastruma bildo en la <span>Vikimedia Komunejo</span></a> (Multrimedaj datumoj)</span> </li></ul> </div></div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Elŝutita el "<a dir="ltr" href="https://eo.wikipedia.org/w/index.php?title=Rastruma_bildo&oldid=8867183">https://eo.wikipedia.org/w/index.php?title=Rastruma_bildo&oldid=8867183</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Speciala%C4%B5o:Kategorioj" title="Specialaĵo:Kategorioj">Kategorio</a>: <ul><li><a href="/wiki/Kategorio:Komputila_grafiko" title="Kategorio:Komputila grafiko">Komputila grafiko</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Ĉi tiu paĝo estis lastafoje redaktita je 08:19, 28 sep. 2024.</li> <li id="footer-info-copyright">La teksto disponeblas laŭ la permesilo <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.eo">Krea Komunaĵo Atribuite-Samkondiĉe 4.0 Neadaptita</a>; eble aldonaj kondiĉoj aplikeblas. 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