CODEWITHSUNDEEP
c++opencvimage-processingmatrix
user339946
user339946

Reputation: 6119

Combining two matrices, preserving their element value

I'm using OpenCV in C++. I have two single channel matrices, one with values of either 0 or 2, the other with either with values 0 or 3 for each element. I want to combine the two to use as a mask in the grabCut function.

I would like to merge them such that my new combined matrix contains either 0, 2, or 3, where appropriate. I tried a bitwise OR operation, but it seems that this only gives me a matrix with values 0 or 255 exclusively where a 3 or 2 is.

combined = (greenMaskForGrabcut == 3) | (redMaskForGrabcut == 2);

How can I preserve the 3 or 2 values for each element? Thanks

Upvotes: 2

Views: 153

Answers (1)

Andy Hin
Andy Hin

Reputation: 31953

OpenCV has a bitwise_or operation specifically for arrays:

http://docs.opencv.org/modules/core/doc/operations_on_arrays.html

void bitwise_or(InputArray src1, InputArray src2, OutputArray dst, InputArray mask=noArray())

Upvotes: 2

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