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- | ====== Vision ====== | ||
- | |||
- | ===== Color Quantization ===== | ||
- | =References= | ||
- | - [[http:// | ||
- | |||
- | ==RGB cone== | ||
- | ==YUV polygon== | ||
- | ==HSV rectangle== | ||
- | ==Lab== | ||
- | |||
- | |||
- | ===== Image segmentation ===== | ||
- | |||
- | ===Floodfill=== | ||
- | =References= | ||
- | - [[http:// | ||
- | ===Watershed=== | ||
- | =References= | ||
- | - [[http:// | ||
- | - [[http:// | ||
- | |||
- | ===== Filters ===== | ||
- | =References= | ||
- | - [[http:// | ||
- | |||
- | ====Anti-noise==== | ||
- | (smoothing) | ||
- | =References= | ||
- | - [[http:// | ||
- | - [[http:// | ||
- | | ||
- | ==Median Filter== | ||
- | ==Vector Median Filter== | ||
- | ==Kuwahara filter== | ||
- | ==Peer Group Filtering== | ||
- | =References= | ||
- | - [[http:// | ||
- | ==Anisotropic Filtering== | ||
- | |||
- | ====Gradient==== | ||
- | |||
- | ==Prewitt== | ||
- | =Objective= | ||
- | Basic kernels for 1st order gradient. | ||
- | =Quick Def= | ||
- | Horizontal kernel : | ||
- | ^-1^0^1^ | ||
- | ^-1^**0**^1^ | ||
- | ^-1^0^1^ | ||
- | Vertical kernel : | ||
- | ^-1^-1^-1^ | ||
- | ^0^**0**^0^ | ||
- | ^1^1^1^ | ||
- | |||
- | |||
- | ==Roberts== | ||
- | =Objective= | ||
- | |||
- | =Quick Def= | ||
- | First kernel : | ||
- | ^1^0^ | ||
- | ^0^-1^ | ||
- | Second kernel : | ||
- | ^0^1^ | ||
- | ^-1^0^ | ||
- | Intensity : | ||
- | '' | ||
- | Direction : | ||
- | '' | ||
- | |||
- | ==Sobel== | ||
- | =Objective= | ||
- | Most popular 1st order kernels | ||
- | =Quick Def= | ||
- | Horizontal kernel : | ||
- | ^-1^0^1^ | ||
- | ^-2^**0**^2^ | ||
- | ^-1^0^1^ | ||
- | Vertical kernel : | ||
- | ^-1^-2^-1^ | ||
- | ^0^**0**^0^ | ||
- | ^1^2^1^ | ||
- | Intensity : | ||
- | '' | ||
- | Direction : | ||
- | '' | ||
- | =Full Def= | ||
- | The filter can be seen as the convolution of two filters. | ||
- | Derivative : | ||
- | ^-1^ | ||
- | ^0^ | ||
- | ^1^ | ||
- | Smoothing : | ||
- | ^1^2^1^ | ||
- | |||
- | ==Laplace== | ||
- | =Objective= | ||
- | 2nd order kernel | ||
- | =Quick Def= | ||
- | Kernel : | ||
- | ^0^1^0^ | ||
- | ^1^**-4**^1^ | ||
- | ^0^1^0^ | ||
- | |||
- | ==Scharr== | ||
- | |||
- | ====morphological==== | ||
- | =References= | ||
- | - [[http:// | ||
- | ==Dilation== | ||
- | // | ||
- | ==Erosion== | ||
- | //Erosion// | ||
- | ==Opening== | ||
- | // | ||
- | ==Closing== | ||
- | // | ||
- | |||
- | ===== Edge detection ===== | ||
- | | ||
- | ===Canny detector=== | ||
- | =Objective= | ||
- | Best theoritical edge detector. | ||
- | =Quick Def= | ||
- | Noise filtering, gradient with horizontal vertical and diagonal kernels, thresholding with hysteresis taking into account the direction of the gradient. | ||
- | |||
- | ==Canny-Deriche== | ||