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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="API documentation for the Rust `GenericImageView` trait in crate `image`."><meta name="keywords" content="rust, rustlang, rust-lang, GenericImageView"><title>image::GenericImageView - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><p class='location'>Trait GenericImageView</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Pixel">Pixel</a><a href="#associatedtype.InnerImageView">InnerImageView</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.dimensions">dimensions</a><a href="#tymethod.bounds">bounds</a><a href="#tymethod.get_pixel">get_pixel</a><a href="#tymethod.inner">inner</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.width">width</a><a href="#method.height">height</a><a href="#method.in_bounds">in_bounds</a><a href="#method.unsafe_get_pixel">unsafe_get_pixel</a><a href="#method.pixels">pixels</a><a href="#method.view">view</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>image</a></p><script>window.sidebarCurrent = {name: 'GenericImageView', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press S to search, ? for more options…" type="search"><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>image</a>::<wbr><a class="trait" href=''>GenericImageView</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>&#x2212;</span>]</a></span><a class='srclink' href='../src/image/image.rs.html#356-427' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait GenericImageView {
type <a href='#associatedtype.Pixel' class="type">Pixel</a>: <a class="trait" href="../image/trait.Pixel.html" title="trait image::Pixel">Pixel</a>;
type <a href='#associatedtype.InnerImageView' class="type">InnerImageView</a>: <a class="trait" href="../image/trait.GenericImageView.html" title="trait image::GenericImageView">GenericImageView</a>&lt;Pixel = Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a>&gt;;
fn <a href='#tymethod.dimensions' class='fnname'>dimensions</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>;
<div class='item-spacer'></div> fn <a href='#tymethod.bounds' class='fnname'>bounds</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>;
<div class='item-spacer'></div> fn <a href='#tymethod.get_pixel' class='fnname'>get_pixel</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a>;
<div class='item-spacer'></div> fn <a href='#tymethod.inner' class='fnname'>inner</a>(&amp;self) -&gt; &amp;Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.InnerImageView" title="type image::GenericImageView::InnerImageView">InnerImageView</a>;
fn <a href='#method.width' class='fnname'>width</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a> { ... }
<div class='item-spacer'></div> fn <a href='#method.height' class='fnname'>height</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a> { ... }
<div class='item-spacer'></div> fn <a href='#method.in_bounds' class='fnname'>in_bounds</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
<div class='item-spacer'></div> unsafe fn <a href='#method.unsafe_get_pixel' class='fnname'>unsafe_get_pixel</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a> { ... }
<div class='item-spacer'></div> fn <a href='#method.pixels' class='fnname'>pixels</a>(&amp;self) -&gt; <a class="struct" href="../image/struct.Pixels.html" title="struct image::Pixels">Pixels</a>&lt;Self&gt; { ... }
<div class='item-spacer'></div> fn <a href='#method.view' class='fnname'>view</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&amp;self, <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;x: <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;y: <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;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;) -&gt; <a class="struct" href="../image/struct.SubImage.html" title="struct image::SubImage">SubImage</a>&lt;&amp;Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.InnerImageView" title="type image::GenericImageView::InnerImageView">InnerImageView</a>&gt; { ... }
}</pre></div><div class='docblock'><p>Trait to inspect an image.</p>
</div>
<h2 id='associated-types' class='small-section-header'>
Associated Types<a href='#associated-types' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='associatedtype.Pixel' class='method'><span id='Pixel.t' class='invisible'><code>type <a href='#associatedtype.Pixel' class="type">Pixel</a>: <a class="trait" href="../image/trait.Pixel.html" title="trait image::Pixel">Pixel</a></code></span></h3><div class='docblock'><p>The type of pixel.</p>
</div><h3 id='associatedtype.InnerImageView' class='method'><span id='InnerImageView.t' class='invisible'><code>type <a href='#associatedtype.InnerImageView' class="type">InnerImageView</a>: <a class="trait" href="../image/trait.GenericImageView.html" title="trait image::GenericImageView">GenericImageView</a>&lt;Pixel = Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a>&gt;</code></span></h3><div class='docblock'><p>Underlying image type. This is mainly used by SubImages in order to
always have a reference to the original image. This allows for less
indirections and it eases the use of nested SubImages.</p>
</div></div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.dimensions' class='method'><span id='dimensions.v' class='invisible'><code>fn <a href='#tymethod.dimensions' class='fnname'>dimensions</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h3><div class='docblock'><p>The width and height of this image.</p>
</div><h3 id='tymethod.bounds' class='method'><span id='bounds.v' class='invisible'><code>fn <a href='#tymethod.bounds' class='fnname'>bounds</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h3><div class='docblock'><p>The bounding rectangle of this image.</p>
</div><h3 id='tymethod.get_pixel' class='method'><span id='get_pixel.v' class='invisible'><code>fn <a href='#tymethod.get_pixel' class='fnname'>get_pixel</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a></code></span></h3><div class='docblock'><p>Returns the pixel located at (x, y)</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p>Panics if <code>(x, y)</code> is out of bounds.</p>
<p>TODO: change this signature to &amp;P</p>
</div><h3 id='tymethod.inner' class='method'><span id='inner.v' class='invisible'><code>fn <a href='#tymethod.inner' class='fnname'>inner</a>(&amp;self) -&gt; &amp;Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.InnerImageView" title="type image::GenericImageView::InnerImageView">InnerImageView</a></code></span></h3><div class='docblock'><p>Returns a reference to the underlying image.</p>
</div></div>
<h2 id='provided-methods' class='small-section-header'>
Provided Methods<a href='#provided-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='method.width' class='method'><span id='width.v' class='invisible'><code>fn <a href='#method.width' class='fnname'>width</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h3><div class='docblock'><p>The width of this image.</p>
</div><h3 id='method.height' class='method'><span id='height.v' class='invisible'><code>fn <a href='#method.height' class='fnname'>height</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span></h3><div class='docblock'><p>The height of this image.</p>
</div><h3 id='method.in_bounds' class='method'><span id='in_bounds.v' class='invisible'><code>fn <a href='#method.in_bounds' class='fnname'>in_bounds</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns true if this x, y coordinate is contained inside the image.</p>
</div><h3 id='method.unsafe_get_pixel' class='method'><span id='unsafe_get_pixel.v' class='invisible'><code>unsafe fn <a href='#method.unsafe_get_pixel' class='fnname'>unsafe_get_pixel</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a></code></span></h3><div class='docblock'><p>Returns the pixel located at (x, y)</p>
<p>This function can be implemented in a way that ignores bounds checking.</p>
</div><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../image/struct.Pixels.html" title="struct image::Pixels">Pixels</a>&lt;'a, I&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../image/struct.Pixels.html" title="struct image::Pixels">Pixels</a>&lt;'a, I&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, I:&nbsp;<a class="trait" href="../image/trait.GenericImageView.html" title="trait image::GenericImageView">GenericImageView</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> for <a class="struct" href="../image/struct.Pixels.html" title="struct image::Pixels">Pixels</a>&lt;'a, I&gt;</span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, I::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>;</span></code></div></div><h3 id='method.pixels' class='method'><span id='pixels.v' class='invisible'><code>fn <a href='#method.pixels' class='fnname'>pixels</a>(&amp;self) -&gt; <a class="struct" href="../image/struct.Pixels.html" title="struct image::Pixels">Pixels</a>&lt;Self&gt;</code></span></h3><div class='docblock'><p>Returns an Iterator over the pixels of this image.
The iterator yields the coordinates of each pixel
along with their value</p>
</div><h3 id='method.view' class='method'><span id='view.v' class='invisible'><code>fn <a href='#method.view' class='fnname'>view</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;self, <br>&nbsp;&nbsp;&nbsp;&nbsp;x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, <br>&nbsp;&nbsp;&nbsp;&nbsp;y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</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>) -&gt; <a class="struct" href="../image/struct.SubImage.html" title="struct image::SubImage">SubImage</a>&lt;&amp;Self::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.InnerImageView" title="type image::GenericImageView::InnerImageView">InnerImageView</a>&gt;</code></span></h3><div class='docblock'><p>Returns an subimage that is an immutable view into this image.</p>
</div></div><h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><ul class='item-list' id='implementors-list'><li><table class='table-display'><tbody><tr><td><code>impl&lt;P, Container&gt; GenericImageView for <a class="struct" href="../image/struct.ImageBuffer.html" title="struct image::ImageBuffer">ImageBuffer</a>&lt;P, Container&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <a class="trait" href="../image/trait.Pixel.html" title="trait image::Pixel">Pixel</a> + 'static,<br>&nbsp;&nbsp;&nbsp;&nbsp;Container: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&lt;Target = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>P::<a class="type" href="../image/trait.Pixel.html#associatedtype.Subpixel" title="type image::Pixel::Subpixel">Subpixel</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;P::<a class="type" href="../image/trait.Pixel.html#associatedtype.Subpixel" title="type image::Pixel::Subpixel">Subpixel</a>: 'static,&nbsp;</span><span class="where fmt-newline"> type <a href='#associatedtype.Pixel' class="type">Pixel</a> = P;</span><span class="where fmt-newline"> type <a href='#associatedtype.InnerImageView' class="type">InnerImageView</a> = Self;</span></code><td><div class='out-of-band'><a class='srclink' href='../src/image/buffer.rs.html#514-549' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl GenericImageView for <a class="enum" href="../image/enum.DynamicImage.html" title="enum image::DynamicImage">DynamicImage</a><span class="where fmt-newline"> type <a href='#associatedtype.Pixel' class="type">Pixel</a> = <a class="struct" href="../image/struct.Rgba.html" title="struct image::Rgba">Rgba</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>&gt;;</span><span class="where fmt-newline"> type <a href='#associatedtype.InnerImageView' class="type">InnerImageView</a> = Self;</span></code><td><div class='out-of-band'><a class='srclink' href='../src/image/dynimage.rs.html#566-585' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl&lt;I&gt; GenericImageView for <a class="struct" href="../image/struct.SubImage.html" title="struct image::SubImage">SubImage</a>&lt;I&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;I::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a>: <a class="trait" href="../image/trait.GenericImageView.html" title="trait image::GenericImageView">GenericImageView</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span><span class="where fmt-newline"> type <a href='#associatedtype.Pixel' class="type">Pixel</a> = &lt;&lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a> as <a class="trait" href="../image/trait.GenericImageView.html" title="trait image::GenericImageView">GenericImageView</a>&gt;::<a class="type" href="../image/trait.GenericImageView.html#associatedtype.Pixel" title="type image::GenericImageView::Pixel">Pixel</a>;</span><span class="where fmt-newline"> type <a href='#associatedtype.InnerImageView' class="type">InnerImageView</a> = I::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a>;</span></code><td><div class='out-of-band'><a class='srclink' href='../src/image/image.rs.html#585-614' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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