fix: Normalize Gaussian 2D kernel. #725
Merged
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Description
Gaussian kernel does not sum up to 1 which leads to darkening of image after convolution.
I also rewrote a little the code. Especially
const float value = static_cast<float>(nominator / denominator);
which should be of typeT
in my opinion. Otherwise value is always float, independent ofT
.References
from wiki
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