Definition: | filterDib3x3(a32Dib dib, sequence matrix, integer div, integer bias) |
Description: |
Applies a matrix-filter to the bitmap: matrix is a 3x3 sequence with the multiplication-values div is the number to divide the result by bias is the number to add to the result |
Comments: | new_pixel[y][x] = sum_of(matrix[i][j] * old_pixel[y-4+i][x-4+j]) / div + bias |