A black object made BMT with a grayscale image appeared to work much easier. XXP
Rich
A black object made BMT with a grayscale image appeared to work much easier. XXP
Rich
Right-click on the layer in the layer gallery, and chose 'New Mask Layer -> From Image.' Then select 'Invert Mask Data' in the window that pops up.
You can then draw on a layer under the one you've modified, and the bottom layer shows as I think you are trying to achieve. Is that what you are after?
BMT = Bit Map transparency?
Saludos,
Bob.
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My interpretation is a transparent image having pixels that are RGB 0,0,0 only. The transparency itself is according to the grayscale values of the original image.
Rich
It appeared that the masking layer (inverted image) looked like an alpha channel. Just opposite of Xara when an image is used for transparency.
I made a new layer and filled it with black. With the masking layer, this gave a black image with the transparency with respect to the gray image. The original image would be transparent, but gray itself.
An optimized PNG seemed to me that it would have something similar to a binary alpha channel. The transparency would be full transparent or full opacity.
I am still trying to learn how to do this and make sense of things. I can only my old computer in the day light due to severe black and white problems at nignt. Skunks.
Rich
In psp If you add a mask layer It on its own is not a alpha channel If you delete the mask it will ask if you want to merge if you say yes you now have a image with transparency just the same as if you had used the wand to select and remove the white.
If you add a new layer and move it to the bottom you can fill with colour to see how the transparency appearers on each Background Colour
Png can store partial transparency unlike gif that only instructs the programme not to paint the white.
Depending on your use for the image saving as PSP or PSD my be easier
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