Calculations – weird results with add blend

DK
Posted By
Douglas_K_White
Aug 5, 2008
Views
781
Replies
0
Status
Closed
When using the calculations command to blend two channels with the ADD blend mode I am getting strange results when using a negative offset with a 16 bit image. The preview behaves as expected with the image darkening but when I press OK the light areas become dark and vice versa. Looking at Levels all pixels are either sent to 0 or 255.

8 bit images perform as I would expected.

Has anyone else noticed this behaviour ?

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