Overlay Blend Mode


On the main PaintShop Pro page on this site is a link to an overlay blend mode video.   The video demonstrates how to use overlay to improve the contrast of an image - a single image.

This approach to the blend mode is somewhat different ...

The best way to imagine this effect is to think about the process which occurs as one image merges into the next in a picture show.

You see the first image on the screen and slowly you start to pick out fragments of the second image as it starts to be revealed, and finally all that you see on the screen is the second image in its totality. 

But for a fleeting few moments whilst the two images are both being shown there is a third image, not really the first picture, not really the second picture, but a new image in which elements of both images occur but in which a totally new picture is created.

The best images to combine are similar in contrast and colour range; and should both be high key or both be low key.

High Key = the histogram is skewed to the right with tones 7 to 10 (Ansel Adams) predominating  but there should be a full range of tones from 1 to 10.

Low Key = the histogram is skewed to the left with tones 1 to 4 (Ansel Adams) predominating  but there should be a full range of tones from 1 to 10.


overlay blend mode



overlay blend mode


Open both images, and choose one of them.  Use Edit > Copy then Edit > Paste as new image; this is image 1.  Then close the original image to protect it.

Select the second image; this is image 2, and use Edit > Copy to copy it.  Then close the original image to protect it. Select image 1 that you have just duplicated and Edit > Paste as new layer the copy of image 2 above image 1.

Select the upper layer in the layers palette and set the blend mode to overlay.  And there you have it, a visit to the Audio Visual show just as the pictures change.


overlay blend mode














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