Subtract images🔗
Subtracts a reference image from another image and outputs the difference.
Inputs🔗
image: Input imagereference: Reference image that will be subtracted from input images. A run-time error will occur if the type or size of the reference is not the same as that of the input.allowNegativeGray: If this flag istrueand the input images are both gray-level images, the output image will be signed 32-bit ints. Otherwise, the type of the output will be the same as that of the input.
Outputs🔗
image: Eitherabs(image - reference)(whenallowNegativeGrayisfalse) orimage - reference(whenallowNegativeGrayistrue).