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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=== | ||
