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Pastimes : Digital Photography
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To: Hoatzin who wrote (3289)9/10/2002 5:03:41 AM
From: Bill Ulrich  Read Replies (1) of 21662
 
The B/W experiment sounds interesting. A quick way to find the actual difference areas would be to paste one shot on top the other in PShop layers. Set the top layer blend mode to "Difference". The black (or "very near-black") areas are areas of similarity. Lighter areas will show where the real tonality differences occur. Set the blend mode back to "Normal" to manually examine the appropriate areas. Greyish mid-tones can be further examined with the "Exclusion" blend mode. (probably best with precisely exact shots, i.e. tripod)
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