The cost values that get passed to calculateKernel are not guaranteed to be unsigned chars, and therefore can't be guaranteed to be in the range of an unsigned char. This can lead to overflowing the cost variable, which will obviously lead to incorrect kernel computation.
ayrton04
commented
3 years ago
The cost values that get passed to
calculateKernelare not guaranteed to beunsigned chars, and therefore can't be guaranteed to be in the range of anunsigned char. This can lead to overflowing thecostvariable, which will obviously lead to incorrect kernel computation.