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	<title>Synopshots &#187; Free Tutorials</title>
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		<title>Expand Dynamic Range from a Single Raw</title>
		<link>http://www.synopshots.com/blog/2009/02/07/expand-dynamic-range-from-a-single-raw/</link>
		<comments>http://www.synopshots.com/blog/2009/02/07/expand-dynamic-range-from-a-single-raw/#comments</comments>
		<pubDate>Sat, 07 Feb 2009 15:43:15 +0000</pubDate>
		<dc:creator>Tim Dempsey</dc:creator>
				<category><![CDATA[Block Island]]></category>
		<category><![CDATA[Free Tutorials]]></category>
		<category><![CDATA[Nikon D2X]]></category>
		<category><![CDATA[Photoshop]]></category>
		<category><![CDATA[Processing Technique]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Digital photo processing]]></category>
		<category><![CDATA[Surf Hotel]]></category>
		<category><![CDATA[Topaz Adjust]]></category>

		<guid isPermaLink="false">http://www.synopshots.com/blog/?p=191</guid>
		<description><![CDATA[
There are plenty of occasions when I simply don&#8217;t have the tripod, or perhaps even the time, to set up the perfect HDR.  I have had this image on my hard drive since August, and I hadn&#8217;t yet uncovered the techniques that would transform the raw file into a better reflection of what the [...]]]></description>
			<content:encoded><![CDATA[<p style="text-align: center;"><a href="http://www.flickr.com/photos/ddwise/3260377916/" onclick="javascript:pageTracker._trackPageview('/outbound/article/www.flickr.com');"><img class="aligncenter frame" title="The Deck.  Surf Hotel, Block Island, Rhode Island" src="http://farm4.static.flickr.com/3359/3260377916_b1c5509fa3.jpg" alt="Surf Hotel Block Island" width="500" /></a></p>
<p style="text-align: left">There are plenty of occasions when I simply don&#8217;t have the tripod, or perhaps even the time, to set up the perfect HDR.  I have had this image on my hard drive since August, and I hadn&#8217;t yet uncovered the techniques that would transform the raw file into a better reflection of what the scene had &#8216;recorded&#8217; in my memory.</p>
<p><a href="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckorigraw.jpg" ><img class="alignright frame" title="Surf Hotel Deck.  Original Raw Image." src="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckorigraw.jpg" alt="Surf Hotel, Block Island, Rhode Island" width="320" /></a></p>
<p>Here&#8217;s the &#8220;after&#8221;  [by "after" I mean after the image has been recorded on the sensor.  In my lexicon, "before" is what I saw and persists in my imagination, i.e. like the image above].</p>
<p>There are several issues we will address one at a time.</p>
<p>First, the shadows on the porch.  This porch has a fantastic compass rose painted on the surface, and one of those sky-blue ceilings (to keep the bees away, I&#8217;m told).  As captured by the sensor, the compass rose looks like a weather-worn indoor outdoor remnant from railroad salvage, and the ceiling is just too muddy.  I also find that wood features like shingles, the decking, and the white fence love the effect of the LucisArt or Topaz Adjust filters.</p>
<p><a href="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckmask.jpg" ><img class="alignleft frame" title="Surf Hotel Desk: sky, sea, bluffs, clouds masked" src="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckmask.jpg" alt="Surf Hotel, Block Island" width="320" /></a></p>
<p>In this case I worked with Topaz Adjust.  But first I had to isolate the sea, bluffs, sky and clouds from the hotel structure, so I turned to the Polygonal Lasso Tool in Photoshop, and created this selection, which I hastened to save as a channel.  I won&#8217;t go into details (experiment!  try!  err!), but the Refine Edge dialog is essential, and is an option introduced in CS3 and available when any selection tool is active.</p>
<p>I tweeked the &#8220;Adaptive Exposure&#8221; slider, and its &#8220;Regions&#8221; slider to .4, and 14 for this project.  I also boosted the &#8220;Highlight&#8221; slider to .06 in order to protect that beautiful railing.</p>
<p>The &#8220;Details&#8221; settings were: &#8220;Strength&#8221; 1.8; &#8220;Boost&#8221; 1.1.  This enhances local contrast, giving the wood surfaces the texture that I think of when remembering New England cottage style buildings.</p>
<p>I &#8220;stamped&#8221; the layers to consolidate the work so far: (Ctrl-Alt-Shift-E).</p>
<p>Second fix is the sea, sky, clouds, and bluffs in the distance.  In the original RAW file, they simply lack the saturation and richness I remember from the moment I pressed the shutter release.</p>
<p><a href="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckmaskmultiply.jpg" ><img class="alignright fame" title="The mask reversed!" src="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckmaskmultiply.jpg" alt="Surf Hotel, Block Island" width="320" /></a>This one was an easy fix &#8212; and I&#8217;ve used this loads of times since I first experimented with it.  I grabbed my selection (highlighted it on the channels panel, clicked on &#8220;load channel as selection&#8221;, then went to my new top &#8220;stamped&#8221; layer, and clicked on the &#8220;Create Mask&#8221; icon in the layers panel.  This creates a mask and applies the current selection &#8212; the area outside that selection is masked &#8220;out,&#8221; the selection area is now available for adjustment.</p>
<p>After experimenting, I found that simply applying the &#8220;multiply&#8221; blend mode did the trick.  It restored the vibrance I remembered without introducing the extreme pixel damage of heavy saturation adjustments.</p>
<p><a href="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckadjusthorizon.jpg" ><img class="alignleft frame" title="Surf Deck: Horizon line adjusted" src="http://www.synopshots.com/blog/wp-content/uploads/2009/02/surfdeckadjusthorizon.jpg" alt="Surf Hotel, Block Island" width="320" /></a>Final tweek: adjust that horizon line to make the final composition look just right.</p>
<p>So: If you have an extra $6,000,000, this is a great real estate opportunity!  If not, you can see why Block Island is one of my favorite places by checking out the BI sets on my <a href="http://flickr.com/photos/ddwise/collections/72157613442176285/" onclick="javascript:pageTracker._trackPageview('/outbound/article/flickr.com');">Flickr photostream</a>.</p>
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