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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<div class="section" id="module-arrayfire.image">
<span id="arrayfire-image-module"></span><h1>arrayfire.image module<a class="headerlink" href="#module-arrayfire.image" title="Permalink to this headline">¶</a></h1>
<p>Image processing functions.</p>
<dl class="function">
<dt id="arrayfire.image.bilateral">
<code class="descclassname">arrayfire.image.</code><code class="descname">bilateral</code><span class="sig-paren">(</span><em>image</em>, <em>s_sigma</em>, <em>c_sigma</em>, <em>is_color=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#bilateral"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.bilateral" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply bilateral filter to the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>s_sigma</strong> : scalar.</p>
<blockquote>
<div><ul class="simple">
<li>Sigma value for the co-ordinate space.</li>
</ul>
</div></blockquote>
<p><strong>c_sigma</strong> : scalar.</p>
<blockquote>
<div><ul class="simple">
<li>Sigma value for the color space.</li>
</ul>
</div></blockquote>
<p><strong>is_color</strong> : optional: bool. default: False.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies if the third dimension is 3rd channel (if True) or a batch (if False).</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The image after the application of the bilateral filter.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.color_space">
<code class="descclassname">arrayfire.image.</code><code class="descname">color_space</code><span class="sig-paren">(</span><em>image</em>, <em>to_type</em>, <em>from_type</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#color_space"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.color_space" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert an image from one color space to another.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A multi dimensional array representing batch of images in <cite>from_type</cite> color space.</li>
</ul>
</div></blockquote>
<p><strong>to_type</strong> : af.CSPACE</p>
<blockquote>
<div><ul class="simple">
<li>An enum for the destination color space.</li>
</ul>
</div></blockquote>
<p><strong>from_type</strong> : af.CSPACE</p>
<blockquote>
<div><ul class="simple">
<li>An enum for the source color space.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An image in the <cite>to_type</cite> color space.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.dilate">
<code class="descclassname">arrayfire.image.</code><code class="descname">dilate</code><span class="sig-paren">(</span><em>image</em>, <em>mask=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#dilate"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.dilate" title="Permalink to this definition">¶</a></dt>
<dd><p>Run image dilate on the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>mask</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the neighborhood of a pixel.</li>
<li>When None, a [3, 3] array of all ones is used.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The dilated image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.dilate3">
<code class="descclassname">arrayfire.image.</code><code class="descname">dilate3</code><span class="sig-paren">(</span><em>volume</em>, <em>mask=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#dilate3"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.dilate3" title="Permalink to this definition">¶</a></dt>
<dd><p>Run volume dilate on a volume.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>volume</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 3 D arrayfire array representing a volume, or</li>
<li>A multi dimensional array representing batch of volumes.</li>
</ul>
</div></blockquote>
<p><strong>mask</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the neighborhood of a pixel.</li>
<li>When None, a [3, 3, 3] array of all ones is used.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The dilated volume.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.erode">
<code class="descclassname">arrayfire.image.</code><code class="descname">erode</code><span class="sig-paren">(</span><em>image</em>, <em>mask=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#erode"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.erode" title="Permalink to this definition">¶</a></dt>
<dd><p>Run image erode on the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>mask</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the neighborhood of a pixel.</li>
<li>When None, a [3, 3] array of all ones is used.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The eroded image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.erode3">
<code class="descclassname">arrayfire.image.</code><code class="descname">erode3</code><span class="sig-paren">(</span><em>volume</em>, <em>mask=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#erode3"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.erode3" title="Permalink to this definition">¶</a></dt>
<dd><p>Run volume erode on the volume.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>volume</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 3 D arrayfire array representing an volume, or</li>
<li>A multi dimensional array representing batch of volumes.</li>
</ul>
</div></blockquote>
<p><strong>mask</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the neighborhood of a pixel.</li>
<li>When None, a [3, 3, 3] array of all ones is used.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The eroded volume.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.gaussian_kernel">
<code class="descclassname">arrayfire.image.</code><code class="descname">gaussian_kernel</code><span class="sig-paren">(</span><em>rows</em>, <em>cols</em>, <em>sigma_r=None</em>, <em>sigma_c=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#gaussian_kernel"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.gaussian_kernel" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a gaussian kernel with the given parameters.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>rows</strong> : int</p>
<blockquote>
<div><ul class="simple">
<li>The number of rows in the gaussian kernel.</li>
</ul>
</div></blockquote>
<p><strong>cols</strong> : int</p>
<blockquote>
<div><ul class="simple">
<li>The number of columns in the gaussian kernel.</li>
</ul>
</div></blockquote>
<p><strong>sigma_r</strong> : optional: number. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>The sigma value along rows</li>
<li>If None, calculated as (0.25 * rows + 0.75)</li>
</ul>
</div></blockquote>
<p><strong>sigma_c</strong> : optional: number. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>The sigma value along columns</li>
<li>If None, calculated as (0.25 * cols + 0.75)</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>A gaussian kernel of size (rows, cols)</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.gradient">
<code class="descclassname">arrayfire.image.</code><code class="descname">gradient</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#gradient"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.gradient" title="Permalink to this definition">¶</a></dt>
<dd><p>Find the horizontal and vertical gradients.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>(dx, dy)</strong> : Tuple of af.Array.</p>
<blockquote class="last">
<div><ul class="simple">
<li><cite>dx</cite> containing the horizontal gradients of <cite>image</cite>.</li>
<li><cite>dy</cite> containing the vertical gradients of <cite>image</cite>.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.gray2rgb">
<code class="descclassname">arrayfire.image.</code><code class="descname">gray2rgb</code><span class="sig-paren">(</span><em>image</em>, <em>r_factor=1.0</em>, <em>g_factor=1.0</em>, <em>b_factor=1.0</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#gray2rgb"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.gray2rgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert Grayscale image to an RGB image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>r_factor</strong> : optional: scalar. default: 1.0.</p>
<blockquote>
<div><ul class="simple">
<li>Scale factor for the red channel.</li>
</ul>
</div></blockquote>
<p><strong>g_factor</strong> : optional: scalar. default: 1.0.</p>
<blockquote>
<div><ul class="simple">
<li>Scale factor for the green channel.</li>
</ul>
</div></blockquote>
<p><strong>b_factor</strong> : optional: scalar. default: 1.0</p>
<blockquote>
<div><ul class="simple">
<li>Scale factor for the blue channel.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An RGB image.</li>
<li>The channels are not coalesced, i.e. they appear along the third dimension.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.hist_equal">
<code class="descclassname">arrayfire.image.</code><code class="descname">hist_equal</code><span class="sig-paren">(</span><em>image</em>, <em>hist</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#hist_equal"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.hist_equal" title="Permalink to this definition">¶</a></dt>
<dd><p>Equalize an image based on a histogram.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>hist</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>Containing the histogram of an image.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The equalized image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.histogram">
<code class="descclassname">arrayfire.image.</code><code class="descname">histogram</code><span class="sig-paren">(</span><em>image</em>, <em>nbins</em>, <em>min_val=None</em>, <em>max_val=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#histogram"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.histogram" title="Permalink to this definition">¶</a></dt>
<dd><p>Find the histogram of an image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>nbins</strong> : int.</p>
<blockquote>
<div><ul class="simple">
<li>Number of bins in the histogram.</li>
</ul>
</div></blockquote>
<p><strong>min_val</strong> : optional: scalar. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>The lower bound for the bin values.</li>
<li>If None, <cite>af.min(image)</cite> is used.</li>
</ul>
</div></blockquote>
<p><strong>max_val</strong> : optional: scalar. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>The upper bound for the bin values.</li>
<li>If None, <cite>af.max(image)</cite> is used.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>hist</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>Containing the histogram of the image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.hsv2rgb">
<code class="descclassname">arrayfire.image.</code><code class="descname">hsv2rgb</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#hsv2rgb"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.hsv2rgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert HSV image to RGB.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 3 D arrayfire array representing an 3 channel image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>A HSV image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.is_image_io_available">
<code class="descclassname">arrayfire.image.</code><code class="descname">is_image_io_available</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#is_image_io_available"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.is_image_io_available" title="Permalink to this definition">¶</a></dt>
<dd><p>Function to check if the arrayfire library was built with Image IO support.</p>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.load_image">
<code class="descclassname">arrayfire.image.</code><code class="descname">load_image</code><span class="sig-paren">(</span><em>file_name</em>, <em>is_color=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#load_image"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.load_image" title="Permalink to this definition">¶</a></dt>
<dd><p>Load an image on the disk as an array.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>file_name: str</strong></p>
<blockquote>
<div><ul class="simple">
<li>Full path of the file name on disk.</li>
</ul>
</div></blockquote>
<p><strong>is_color</strong> : optional: bool. default: False.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies if the image is loaded as 1 channel (if False) or 3 channel image (if True).</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">image - af.Array</p>
<blockquote class="last">
<div><p>A 2 dimensional (1 channel) or 3 dimensional (3 channel) array containing the image.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.load_image_native">
<code class="descclassname">arrayfire.image.</code><code class="descname">load_image_native</code><span class="sig-paren">(</span><em>file_name</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#load_image_native"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.load_image_native" title="Permalink to this definition">¶</a></dt>
<dd><p>Load an image on the disk as an array in native format.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>file_name: str</strong></p>
<blockquote>
<div><ul class="simple">
<li>Full path of the file name on disk.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">image - af.Array</p>
<blockquote class="last">
<div><p>A 2 dimensional (1 channel) or 3 dimensional (3 or 4 channel) array containing the image.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.maxfilt">
<code class="descclassname">arrayfire.image.</code><code class="descname">maxfilt</code><span class="sig-paren">(</span><em>image</em>, <em>w_len=3</em>, <em>w_wid=3</em>, <em>edge_pad=<PAD.ZERO: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#maxfilt"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.maxfilt" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply max filter for the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>w0</strong> : optional: int. default: 3.</p>
<blockquote>
<div><ul class="simple">
<li>The length of the filter along the first dimension.</li>
</ul>
</div></blockquote>
<p><strong>w1</strong> : optional: int. default: 3.</p>
<blockquote>
<div><ul class="simple">
<li>The length of the filter along the second dimension.</li>
</ul>
</div></blockquote>
<p><strong>edge_pad</strong> : optional: af.PAD. default: af.PAD.ZERO</p>
<blockquote>
<div><ul class="simple">
<li>Flag specifying how the max at the edge should be treated.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The image after max filter is applied.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.mean_shift">
<code class="descclassname">arrayfire.image.</code><code class="descname">mean_shift</code><span class="sig-paren">(</span><em>image</em>, <em>s_sigma</em>, <em>c_sigma</em>, <em>n_iter</em>, <em>is_color=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#mean_shift"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.mean_shift" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply mean shift to the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>s_sigma</strong> : scalar.</p>
<blockquote>
<div><ul class="simple">
<li>Sigma value for the co-ordinate space.</li>
</ul>
</div></blockquote>
<p><strong>c_sigma</strong> : scalar.</p>
<blockquote>
<div><ul class="simple">
<li>Sigma value for the color space.</li>
</ul>
</div></blockquote>
<p><strong>n_iter</strong> : int.</p>
<blockquote>
<div><ul class="simple">
<li>Number of mean shift iterations.</li>
</ul>
</div></blockquote>
<p><strong>is_color</strong> : optional: bool. default: False.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies if the third dimension is 3rd channel (if True) or a batch (if False).</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The image after the application of the meanshift.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.minfilt">
<code class="descclassname">arrayfire.image.</code><code class="descname">minfilt</code><span class="sig-paren">(</span><em>image</em>, <em>w_len=3</em>, <em>w_wid=3</em>, <em>edge_pad=<PAD.ZERO: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#minfilt"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.minfilt" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply min filter for the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>w0</strong> : optional: int. default: 3.</p>
<blockquote>
<div><ul class="simple">
<li>The length of the filter along the first dimension.</li>
</ul>
</div></blockquote>
<p><strong>w1</strong> : optional: int. default: 3.</p>
<blockquote>
<div><ul class="simple">
<li>The length of the filter along the second dimension.</li>
</ul>
</div></blockquote>
<p><strong>edge_pad</strong> : optional: af.PAD. default: af.PAD.ZERO</p>
<blockquote>
<div><ul class="simple">
<li>Flag specifying how the min at the edge should be treated.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>The image after min filter is applied.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.moments">
<code class="descclassname">arrayfire.image.</code><code class="descname">moments</code><span class="sig-paren">(</span><em>image</em>, <em>moment=<MOMENT.FIRST_ORDER: 15></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#moments"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.moments" title="Permalink to this definition">¶</a></dt>
<dd><p>Calculate image moments.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>moment</strong> : optional: af.MOMENT. default: af.MOMENT.FIRST_ORDER.</p>
<blockquote>
<div><p>Moment(s) to calculate. Can be one of:
- af.MOMENT.M00
- af.MOMENT.M01
- af.MOMENT.M10
- af.MOMENT.M11
- af.MOMENT.FIRST_ORDER</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>array containing requested moment(s) of each image</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.regions">
<code class="descclassname">arrayfire.image.</code><code class="descname">regions</code><span class="sig-paren">(</span><em>image</em>, <em>conn=<CONNECTIVITY.FOUR: 4></em>, <em>out_type=<Dtype.f32: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#regions"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.regions" title="Permalink to this definition">¶</a></dt>
<dd><p>Find the connected components in the image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image.</li>
</ul>
</div></blockquote>
<p><strong>conn</strong> : optional: af.CONNECTIVITY. default: af.CONNECTIVITY.FOUR.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the connectivity of the pixels.</li>
</ul>
</div></blockquote>
<p><strong>out_type</strong> : optional: af.Dtype. default: af.Dtype.f32.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies the type for the output.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An array where each pixel is labeled with its component number.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.resize">
<code class="descclassname">arrayfire.image.</code><code class="descname">resize</code><span class="sig-paren">(</span><em>image</em>, <em>scale=None</em>, <em>odim0=None</em>, <em>odim1=None</em>, <em>method=<INTERP.NEAREST: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#resize"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.resize" title="Permalink to this definition">¶</a></dt>
<dd><p>Resize an image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>scale</strong> : optional: scalar. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Scale factor for the image resizing.</li>
</ul>
</div></blockquote>
<p><strong>odim0</strong> : optional: int. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Size of the first dimension of the output.</li>
</ul>
</div></blockquote>
<p><strong>odim1</strong> : optional: int. default: None.</p>
<blockquote>
<div><ul class="simple">
<li>Size of the second dimension of the output.</li>
</ul>
</div></blockquote>
<p><strong>method</strong> : optional: af.INTERP. default: af.INTERP.NEAREST.</p>
<blockquote>
<div><ul class="simple">
<li>Interpolation method used for resizing.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>Output image after resizing.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.rgb2gray">
<code class="descclassname">arrayfire.image.</code><code class="descname">rgb2gray</code><span class="sig-paren">(</span><em>image</em>, <em>r_factor=0.2126</em>, <em>g_factor=0.7152</em>, <em>b_factor=0.0722</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#rgb2gray"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.rgb2gray" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert RGB image to Grayscale.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 3 D arrayfire array representing an 3 channel image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>r_factor</strong> : optional: scalar. default: 0.2126.</p>
<blockquote>
<div><ul class="simple">
<li>Weight for the red channel.</li>
</ul>
</div></blockquote>
<p><strong>g_factor</strong> : optional: scalar. default: 0.7152.</p>
<blockquote>
<div><ul class="simple">
<li>Weight for the green channel.</li>
</ul>
</div></blockquote>
<p><strong>b_factor</strong> : optional: scalar. default: 0.0722.</p>
<blockquote>
<div><ul class="simple">
<li>Weight for the blue channel.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>A grayscale image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.rgb2hsv">
<code class="descclassname">arrayfire.image.</code><code class="descname">rgb2hsv</code><span class="sig-paren">(</span><em>image</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#rgb2hsv"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.rgb2hsv" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert RGB image to HSV.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 3 D arrayfire array representing an 3 channel image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>output</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>A RGB image.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.rgb2ycbcr">
<code class="descclassname">arrayfire.image.</code><code class="descname">rgb2ycbcr</code><span class="sig-paren">(</span><em>image</em>, <em>standard=<YCC_STD.BT_601: 601></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#rgb2ycbcr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.rgb2ycbcr" title="Permalink to this definition">¶</a></dt>
<dd><p>RGB to YCbCr colorspace conversion.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><p>A multi dimensional array containing an image or batch of images in RGB format.</p>
</div></blockquote>
<p><strong>standard: YCC_STD. optional. default: YCC_STD.BT_601</strong></p>
<blockquote>
<div><ul class="simple">
<li>Specifies the YCbCr format.</li>
<li>Can be one of YCC_STD.BT_601, YCC_STD.BT_709, and YCC_STD.BT_2020.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>A multi dimensional array containing an image or batch of images in YCbCr format</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.image.rotate">
<code class="descclassname">arrayfire.image.</code><code class="descname">rotate</code><span class="sig-paren">(</span><em>image</em>, <em>theta</em>, <em>is_crop=True</em>, <em>method=<INTERP.NEAREST: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/image.html#rotate"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.image.rotate" title="Permalink to this definition">¶</a></dt>
<dd><p>Rotate an image.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>image</strong> : af.Array</p>
<blockquote>
<div><ul class="simple">
<li>A 2 D arrayfire array representing an image, or</li>
<li>A multi dimensional array representing batch of images.</li>
</ul>
</div></blockquote>
<p><strong>theta</strong> : scalar</p>
<blockquote>
<div><ul class="simple">
<li>The angle to rotate in radians.</li>
</ul>
</div></blockquote>
<p><strong>is_crop</strong> : optional: bool. default: True.</p>
<blockquote>
<div><ul class="simple">
<li>Specifies if the output should be cropped to the input size.</li>
</ul>
</div></blockquote>
<p><strong>method</strong> : optional: af.INTERP. default: af.INTERP.NEAREST.</p>