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<ul class="navigation"><li class="prev"><a accesskey="p" class="prev" href="WSfd1234e1c4b69f30ea53e41001031ab64-78e5a.html" title="Merge images to HDR"><img src="images/blank.gif" alt="Previous" width="17" height="17" /></a></li><li class="next"><a accesskey="n" class="next" href="WSfd1234e1c4b69f30ea53e41001031ab64-78e8a.html" title="Convert from 32 bits to 8 or 16 bpc"><img src="images/blank.gif" alt="Next" width="17" height="17" /></a></li></ul><div class="hierarchy" id="hierarchy"><a href="WSfd1234e1c4b69f30ea53e41001031ab64-794aa.html">Opening and importing images</a> /
     <a href="WSfd1234e1c4b69f30ea53e41001031ab64-78eea.html"><b>High dynamic range images</b></a> 
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                <h1>
                    Adjust dynamic range view for HDR images
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                <div><div class="section"><p>The
dynamic range of HDR images exceeds the display capabilities of
standard computer monitors. When you open an HDR image in Photoshop,
it can look very dark or washed out. Photoshop lets you adjust the
preview so that the monitor displays an HDR image whose highlights
and shadows aren’t washed out or too dark. The preview settings
are stored in the HDR image file (PSD, PSB, and TIFF only) and are
applied whenever the file is opened in Photoshop. Preview adjustments
don’t edit the HDR image file, all the HDR image information remains intact.
Use the Exposure adjustment (Image&#160;&gt; Adjustments&#160;&gt;
Exposure) to make exposure edits to the 32‑bpc HDR image. </p>
<div class="tip"><img src="images/tip_help.png" />To view 32‑bit readouts in the Info panel, click
the Eyedropper icon in the Info panel and choose 32‑Bit from the
pop‑up menu. </div></div>
<ol><li class="stepexpand"><span>Open a 32‑bpc HDR image in Photoshop, and choose
View&#160;&gt; 32‑Bit Preview Options.</span></li>
<li class="stepexpand"><span>In the 32‑bit Preview Options dialog box, choose an option
from the Method menu:</span> <dl><dt class="dlterm">Exposure And Gamma</dt>
<dd>Adjusts the brightness and contrast.</dd><p class="dlseparator"></p><dt class="dlterm">Highlight Compression</dt>
<dd>Compresses the highlight values in the HDR image so they
fall within the luminance values range of the 8‑ or 16‑bpc image
file.</dd><p class="dlseparator"></p></dl>
</li>
<li class="stepexpand"><span>If you chose Exposure And Gamma, move the Exposure and
Gamma sliders to adjust the brightness and contrast of the image
preview.</span></li>
<li class="stepexpand"><span>Click OK.</span> <div class="para"><div class="tip"><img src="images/tip_help.png" />You can also adjust the preview of an
HDR image open in Photoshop by clicking the triangle in the status
bar of the document window and choosing 32‑Bit Exposure from the
pop‑up menu. Move the slider to set the white point for viewing
the HDR image. Double-click the slider to return to the default
exposure setting. Since the adjustment is made per view, you can
have the same HDR image open in multiple windows, each with a different
preview adjustment. Preview adjustments made with this method are
not stored in the HDR image file.</div></div>
</li>
</ol>
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