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Post by BuckSkin on Oct 5, 2018 18:36:39 GMT
This is only one example of many that I have seen scattered around the internet; using Difference mode to perfectly align images: petapixel.com/2016/07/21/editing-trick-perfectly-align-anything-photoshop/In all cases, it is claimed that it works every time. That has definitely not been my experience using Elements; I have yet to find a single instance where the aligned layer turns completely and perfectly black. It will get dark, but other colors still show and detail is easily visible. Try as I might, I have yet to achieve perfect blackness with a perfectly aligned layer; I can't even do it by duplicating a layer and setting the top layer to Difference. How does the trick work for you and what are your findings ? |
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Post by michelb on Oct 5, 2018 19:29:02 GMT
The difference blend mode in itself works perfectly, but the alignment is critical, especially if there needs to be some rotation.
I just checked rapidly how to align to copies of the same shot, the original and a copy in an extended canvas. I had to set the screen to 100% and use the arrow keys to move by one pixel in each direction. I did not get the full black before an number of tries. Difficult to find if you have to move vertically or horizontally!
My favorite trick with the difference blend mode is to add a black to white gradient map adjustment layer with the white tab moved halfway left to intensify the visual difference. I don't think you can achieve the full black in real world situations such as panoramas.
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Post by Sepiana on Oct 5, 2018 19:57:33 GMT
Try as I might, I have yet to achieve perfect blackness with a perfectly aligned layer; I can't even do it by duplicating a layer and setting the top layer to Difference. How does the trick work for you and what are your findings ?
It works for me. The key to success is in the nudging. Baby steps!!!
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Post by BuckSkin on Oct 5, 2018 20:24:58 GMT
I tried one by zooming to 100%
After quite a bit of manipulating, I did finally manage complete blackness --- so long as I left it at 100%; when I "Fit Screen", the black went away.
I went back to 100% and back to black; I zoomed out incrementally and lost the blackness at 50%
By the way, thanks to you guys for experimenting and sharing your findings.
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Post by hmca on Oct 5, 2018 20:27:38 GMT
I was trying to do this the other day and finally gave up. Thanks for sharing BuckSkin.....and for the follow-up Michel and Sepiana. I will have to try this again.....
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Post by Sepiana on Oct 5, 2018 20:36:29 GMT
I tried one by zooming to 100% After quite a bit of manipulating, I did finally manage complete blackness --- so long as I left it at 100%; when I "Fit Screen", the black went away. I went back to 100% and back to black; I zoomed out incrementally and lost the blackness at 50% By the way, thanks to you guys for experimenting and sharing your findings. You are most welcome! Glad to hear it worked for you too.
As a side note, . . . the same technique was posted on the Adobe Photoshop Elements forum.
Align Layers in Elements? (Post #3).
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Post by Sepiana on Oct 7, 2018 4:22:25 GMT
My favorite trick with the difference blend mode is to add a black to white gradient map adjustment layer with the white tab moved halfway left to intensify the visual difference. I don't use the Difference blend mode very often. I like using it for color grading as explained by Blake Rudis.
Difference Blend Mode in Photoshop
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