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+<h1>ImageMagick High Dynamic-range Imaging</h1>
<p class="navigation-index">[<a href="#intro">Introduction to High Dynamic-Range Images</a> • <a href="#enable">Enabling HDRI in ImageMagick</a>]</p>
-<h2><a name="intro"></a>Introduction to High Dynamic-Range Images</h2>
+<a id="intro"></a>
<div class="doc-section">
<p>High dynamic-range imaging (HDRI) permits a far greater dynamic range of exposures (i.e. a large difference between light and dark areas) than standard digital imaging techniques. HDRI accurately represents the wide range of intensity levels found in real scenes ranging from the brightest direct sunlight to the deepest darkest shadows. The HDR imaging approach includes:</p>
</div>
-<h2><a name="enable"></a>Enabling HDRI in ImageMagick</h2>
+<h2><a id="enable"></a>Enabling HDRI in ImageMagick</h2>
<div class="doc-section">
<p>By default, image pixels in ImageMagick are stored as unsigned values that range from 0 to the quantum depth, which is typically 16-bits (Q16). With HDRI enabled, the pixels are stored in a floating-point representation and can include negative values as well as values that exceed the quantum depth. A majority of digital image formats do not support HDRI, and for those images any pixels outside the quantum range are clamped before they are stored.</p>
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projects / imagemagick / blobdiff