gradientcd.c File Reference

Canny-Deriche gradient operator. More...

---

Detailed Description

Canny-Deriche gradient operator.

Usage: gradientcd in.pgm alpha out.pgm

Description: Deriche's recursive implementation of the Canny's gradient operator. The parameter alpha (double) controls the spatial extension of the filter: 0 < alpha < infinity, typical value: alpha = 1

Types supported: byte 2d, byte 3d

Category: signal

Reference:

[Der90] R. Deriche: "Fast algorithms for low-level vision", IEEE Transactions on PAMI, Vol. 12, No. 1, pp. 78-87, 1990.

Author:

Michel Couprie