-flatten

[smajler]

Can anybody tell me how to do -flatten and -background in Magick++:

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-background gray50 -flatten

I was looking in MagickCore::CompositeOperator but i didn't find flatten operator. Something like backgorund i found, but how to do gray50?

[dlemstra]

You can set the background like this: image->backgroundColor(Color("gray50"));

In STL.h there is a method called flattenImages that you can use to flatten multiple images.

[smajler]

yes there is flattenImages but how to use it? It takes few images but i have one.

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- clone 1,3 -compose subtract -composite -background gray50 -flatten

First i subtract image 3 from 1, then i adds background50 to image 1(subtracted) and what about flatten. It flats image 1(subtracted) with image 3?

[fmw42]

You only need to use one image and a background color. It flattens the image against the background color rather than another image. It is like creating an image of the background color and flattening the image against the color image.