ppm2GA.c File Reference

Computes an edge-weighted graph from an color .ppm image. More...

---

Detailed Description

Computes an edge-weighted graph from an color .ppm image.

Usage: ppm2GA im.ppm param out.ga

Description:

Computes a GA (an edge-weighted graph) from a color image. The values of an edge linking two pixels {x,y} is computed according to the parameter param.

If param = 0, the maximum, over the RGB chanels, of absolute differences of intensities between x and y is used.

If param = 1, the Euclidean distance between the values of x and y is used.

If param = 2, fuzzy affinity between x and y is used.

If im.ppm is a 2D (resp. 3D) image, then out.ga is a 2D (resp 3D GA), that is a 2D 4-connected edge-weighted graph (resp. a 2D 6-connected edge-weighted graph).

Types supported: ppm 2D

Category:

Author:

Jean Cousty