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<title>Graphische Datenverarbeitung - Color - XYZ</title>
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Graphische Datenverarbeitung
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<div class="navbar-brand">Posterise Black and White</div>
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<figure class="figure col-sm-6">
<canvas id="result" class="figure-img mx-auto d-block" width="512" height="384"></canvas>
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Quantise the image to 4 brightness values.
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<img class="figure-img mx-auto d-block" src="quantise-grayscale-poster-finished.png">
<figcaption class="figure-caption text-center">Reference image</figcaption>
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<figure class="figure col-sm-6">
<canvas id="original" class="figure-img mx-auto d-block" width="512" height="384"></canvas>
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Original
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