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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="The trait all encoders implement"><meta name="keywords" content="rust, rustlang, rust-lang, ImageEncoder"><title>ImageEncoder in image - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../normalize.css"><link rel="stylesheet" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../ayu.css" disabled><link rel="stylesheet" href="../dark.css" disabled><link rel="stylesheet" href="../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../main.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../favicon.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="sidebar-logo" href="../image/index.html"><div class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../image/index.html"><div class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">ImageEncoder</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.write_image">write_image</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In image</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Trait <a href="index.html">image</a>::<wbr><a class="trait" href="#">ImageEncoder</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../src/image/image.rs.html#666-684">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust trait"><code>pub trait ImageEncoder {
fn <a href="#tymethod.write_image" class="fnname">write_image</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;self,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;buf: &amp;[<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;width: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;height: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;color_type: <a class="enum" href="enum.ColorType.html" title="enum image::ColorType">ColorType</a><br>&nbsp;&nbsp;&nbsp;&nbsp;) -&gt; <a class="type" href="error/type.ImageResult.html" title="type image::error::ImageResult">ImageResult</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;;
}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The trait all encoders implement</p>
</div></details><h2 id="required-methods" class="small-section-header">Required Methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.write_image" class="method has-srclink"><a class="srclink rightside" href="../src/image/image.rs.html#677-683">source</a><h4 class="code-header">fn <a href="#tymethod.write_image" class="fnname">write_image</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self,<br>&nbsp;&nbsp;&nbsp;&nbsp;buf: &amp;[<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>],<br>&nbsp;&nbsp;&nbsp;&nbsp;width: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;height: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;color_type: <a class="enum" href="enum.ColorType.html" title="enum image::ColorType">ColorType</a><br>) -&gt; <a class="type" href="error/type.ImageResult.html" title="type image::error::ImageResult">ImageResult</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;</h4></section></summary><div class="docblock"><p>Writes all the bytes in an image to the encoder.</p>
<p>This function takes a slice of bytes of the pixel data of the image
and encodes them. Unlike particular format encoders inherent impl encode
methods where endianness is not specified, here image data bytes should
always be in native endian. The implementor will reorder the endianess
as necessary for the target encoding format.</p>
<p>See also <code>ImageDecoder::read_image</code> which reads byte buffers into
native endian.</p>
</div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div id="implementors-list"><section id="impl-ImageEncoder-for-JpegEncoder%3C%27a%2C%20W%3E" class="impl has-srclink"><a class="srclink rightside" href="../src/image/codecs/jpeg/encoder.rs.html#677-687">source</a><a href="#impl-ImageEncoder-for-JpegEncoder%3C%27a%2C%20W%3E" class="anchor"></a><h3 class="code-header">impl&lt;'a, W:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>&gt; <a class="trait" href="trait.ImageEncoder.html" title="trait image::ImageEncoder">ImageEncoder</a> for <a class="struct" href="codecs/jpeg/struct.JpegEncoder.html" title="struct image::codecs::jpeg::JpegEncoder">JpegEncoder</a>&lt;'a, W&gt;</h3></section></div><script src="../implementors/image/image/trait.ImageEncoder.js" async></script></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="image" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>