opencv_scharr_filter · Scharr derivative
Scharr operator: more rotationally accurate than Sobel at the 3× kernel size.
Blog
Tutorials, architecture deep-dives, and release notes for task_graph and GraphStudio.
opencv_sep_filter_2d · Separable convolution
Two 1D kernels applied in sequence (horizontal then vertical) — the fast filter2d for big kernels.
opencv_sobel_filter · Sobel derivative
Sobel gradient with selectable dx/dy orders — the basic edge-detection building block.
opencv_sqr_box_filter · Squared box filter
Averaged squared pixel values over the window — a building block for local energy/variance.