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<li class="toctree-l3 current"><a class="current reference internal" href="#">Transform node</a><ul>
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<div class="section" id="transform-node">
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<h1>Transform node<a class="headerlink" href="#transform-node" title="Permalink to this headline">¶</a></h1>
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<p>The transform node applies a scale operation, a rotation and a translation to the input image.</p>
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<img alt="_images/node_transform.png" src="_images/node_transform.png" />
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<div class="section" id="inputs">
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<h2>Inputs<a class="headerlink" href="#inputs" title="Permalink to this headline">¶</a></h2>
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<p>The transform node accepts a color image as input.</p>
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<p>It also accepts a greyscale input image for each transform parameter. In that case,
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instead of applying a uniform transform to the input image, the transform parameter
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will, for each pixel, be multiplied by a value from -1 to 1 that depends linearly
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on the corresponding greyscale input image (a black pixel will multiply the parameter
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by -1, a white pixel will not change the parameter, a grey50 pixel will set it to 0).</p>
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<div class="section" id="outputs">
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<h2>Outputs<a class="headerlink" href="#outputs" title="Permalink to this headline">¶</a></h2>
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<p>The transform node outputs the transformed image.</p>
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<p>The input image is first rotated around its center, then the scale operation is applied and
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finally the translation.</p>
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<p>Using the scale operation to zoom on a detail of the input image is only recommended if the
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input does not rely on resolution dependant nodes.</p>
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</div>
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<div class="section" id="parameters">
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<h2>Parameters<a class="headerlink" href="#parameters" title="Permalink to this headline">¶</a></h2>
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<p>The transform node has the following parameters:</p>
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<ul class="simple">
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<li><em>Translate X</em> and <em>Translate Y</em> define the translation.</li>
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<li><em>Rotate</em> define the rotation expressed in degrees.</li>
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<li><em>Scale X</em> and <em>Scale Y</em> define the scale operations along the X and Y axes.</li>
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<li>If <em>Repeat</em> is checked, zooming out will repeat the image, otherwise it will be clamped.</li>
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</ul>
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