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ImageSubtract

WMA link

ImageSubtract[image, $expr_1$, $expr_2$, ...]

subtracts all $expr_i$ from image where each $expr_i$ must be an image or a real number.

• • i = Image[{{0, 0.5, 0.2, 0.1, 0.9}, {1.0, 0.1, 0.3, 0.8, 0.6}}];

• • ImageSubtract[i, 0.2]

• • ImageSubtract[i, i]