render_subtract · Saturated subtract
Saturating in - in2: the building block for morphological gradients and diff mattes.
Blog
Tutorials, architecture deep-dives, and release notes for task_graph and GraphStudio.
render_threshold · Render threshold
Luminance threshold binarization on the GPU render path.
render_unsharp · USM sharpen
Unsharp mask: in = original, in2 = blurred; amount controls strength.
opencv_add_weighted · Weighted blend
Linear blend of two inputs by alpha/beta/gamma — stacking, crossfades, watermarks.
opencv_brightness_contrast · Brightness/contrast
Linear gain/bias adjustment of brightness and contrast.
opencv_clahe · CLAHE
Contrast-limited adaptive histogram equalization: local enhancement with controllable noise amplification.
opencv_connected_components · Connected components
Labels each connected region of a binary image with an integer id.
opencv_denoise · Non-local means
fastNlMeansDenoising: patch-similarity denoise with the best detail retention.
opencv_distance_transform · Distance transform
Distance field of foreground pixels to the nearest background — the intermediate for skeletons and width.
opencv_equalize_hist · Histogram equalization
Global histogram equalization: stretches dynamic range.