c++ - How does photoshop blend two images together? -

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how-does-photoshop-blend-two-images-together

somebody explain how photoshop combine 2 pictures divide mode? want implement effect in java or c++.

since multiply this:

#define channelblend_multiply(a,b)   ((uint8)((a * b) / 255))

divide must be:

#define channelblend_multiply(a,b)   ((uint8)((a / b) * 255))

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