Boolean Operations
and(M, N)—Returns the Boolean AND of the two image matrices M and N, which must be the same size.
or(M, N)—Returns the Boolean OR of the two image matrices M and N, which must be the same size.
Arguments
M, N are image matrices.
Additional Information
You can use the and and or functions to find features in color images, by thresholding the three colors (RGB) separately, and ANDing or ORing the three binary images.
The and function returns zero if either of the two corresponding pixels in the images is zero, and returns 255 if they are both 255.
The or function returns zero if both of the two corresponding pixels in the images is zero, and returns 255 otherwise.
Nonbinary image inputs to and find the minimum of the two images on a pixel-by-pixel basis; likewise, or finds the maximum.
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