The output value is computed as a sum of neighbor pixels values, with
kernel matrix elements used as weight factors. Summation formulas implement a convolution
operation, which means that kernel coefficients are used in direct order.
In Intel IPP 8.2 and lower versions, kernel coefficients are used in inverse order.
Optionally, the output pixel values may be scaled. To ensure valid operation when
image boundary pixels are processed, the application should correctly define additional border
pixels (see Borders in Neighborhood Operations