VIA - Volumetric Image Analysis
Functions
Deriche2d.c File Reference

Functions

void VDeriche2d (VImage src, VFloat alpha, VImage *gradr, VImage *gradc)

Detailed Description

2D Deriche filter for edge detection

Reference:
R. Deriche. Fast algorithms for low-level vision. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1(12):78-88, January 1990.
Author:
Gabriele Lohmann, MPI-CBS

Function Documentation

void VDeriche2d ( VImage  src,
VFloat  alpha,
VImage *  gradr,
VImage *  gradc 
)
Parameters:
srcinput image (ubyte repn)
alphaparameter controlling edge strength
*gradroutput gradient in row direction (float repn)
*gradcoutput gradient in column direction (float repn)