| Command | Function |
|---|
| FFT, Cosine and Wavelet Transforms |
| hcst, tdcst | - cosine transform on the rows of an image |
| wavelet | - performs a two dimensional wavelet transform |
| taper | - taper the border of an image to zero using a cosine bell function. |
| Radon Transforms |
| radon | - compute the Radon transform |
| backp,fbackp,prfilt | -reconstruct an image based on projection data using the summation method |
| Hough Transforms |
| hough | - generalized Hough transform |
| hought | - reference table generator for the generalized Hough transform |
| houghc | - circle Hough transform |
| houghci | - inverse circle Hough transform |
| houghl | - line Hough transform |
| houghli | - inverse line Hough transform |
| Medial Axis Transforms |
| medax | - find the medial axis transform of an image. |
| imed | - recover the original image from its medial axis transform. |
| Image Warping Transforms |
| coef | - finds coefficients for an nth order polynomial warp |
| gmap | - geometric transform with bilinear interpolation |
| poly | - create a polynomial warp map file from coefficients |
| pwarp | - polynomial warp an image |
| rmap | - generate a map for an image rotation |
| rotate | - rotate an image |
| nmt | - normalize a segmented image based on moments |
| Image Pyramid Transforms |
| pyramid | - generate one level of a Laplacian pyramid |
| pyrex | - generate an image from a level of a Laplacian pyramid |
| Command | Function |
|---|
| Image Utilites |
| compare | - compare two images |
| gauss,igauss | - add gaussian noise to an image |
| rnoise | - add noise to a range image |
| pipefrom | - Create and read from a named socket |
| pipe | - pipe two processes into a third process |
| seq | - sequence a command through an image set |
| vcapt | - Add a caption to an image |
| Edge Operators |
| frichn | - Frei-Chen edge detection |
| edged | - detect changes in a grey level image |
| loge, logkern, logsep, zerox | - Laplacian of Gaussian edge operator. |
| canne,canny | - Canny edge operator. |
| eps | - edge-preserving smoothing filter |
| grad | - estimate range image surface normal angles |
| Image Filters |
| bfilter | - filter a binary image |
| bsub,unsharp,laplacian | - simple image filter commands |
| cmedian,qmedian | - constrained local median filter function |
| con4 | - convert an 8-connected line image to 4-connected |
| exp4,expx4 | - increases the size of an image by a factor of 16 (4x4) |
| mean | - local mean filter function |
| meddev | - local median deviation filter function |
| Command | Function |
|---|
| Object/Region Segmentation and Manipulation |
| vgseg | - threshold and image set and generate segment descriptors |
| vged | - Edit a graph file |
| vgbox | - Set the bounding box for a graph file |
| pixloc | - find non-zero pixel locations |
| vtograph | - convert format to the generalized graph format |
| Image Statistics |
| corr | - determine the spatial correlation between two images |
| reloc | - changes an image's dimensions in accordance with a position matrix |
| mse | - compute the mean squared error between two images |
| tdhist | - two dimensional histogram |
| threshm | - compute region threshold figure of merit |
| Neural Network |
| nnet | - neural network simulator |
VisionX V3 Subject Index (V4 Support)
link