opencv_adaptive_threshold · Adaptive threshold
Binarizes by local neighborhood statistics (mean/Gaussian) — robust to uneven lighting.
Node-Guide
opencv_apply_color_map · Color map
Maps single-channel input through a preset palette (JET / VIRIDIS / BONE …) — heatmaps in one step.
opencv_cvt_color · Color conversion
Common conversions among BGR/GRAY/RGB/HSV/HLS/LAB/LUV/YCrCb/XYZ.
opencv_flip · Flip
Horizontal / vertical / both-axes flip (flip code 0 / 1 / -1).
opencv_resize · Resize
Resize by target width/height and interpolation method.
opencv_rotate · Rotate 90°
Fast 90°/180°/270° rotation (rotate code 0/1/2).
opencv_threshold · Threshold
Global threshold with binary/inverted/trunc/tozero semantics, plus OTSU and TRIANGLE auto modes.
opencv_transpose · Transpose
Swaps rows and columns (mirror across the main diagonal).
opencv_warp_affine · Affine warp
Translate/rotate/scale/shear by a 2×3 affine matrix; arbitrary-angle rotation lives here.
io_input · Graph boundary input
Graph boundary for embedded execution: the host binds a value into io_input before running; downstream tasks consume its out port.