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contourx

PURPOSE ^

CONTOURX calcule les discontinuites dans une image

SYNOPSIS ^

function [q,qc] = contourx(A,epsilon,ind);

DESCRIPTION ^

CONTOURX calcule les discontinuites dans une image
 [q,qc]=contourx(A,epsilon,ind);
 qc = max des valeurs absolues des differences 0,45,90,135
 q  = max des valeurs absolues des differences 0,45,90,135 seuilles a epsilon
 si ind=0 contours minces et si ind=1 contours epaisses
 
 Tests:
 x=.5*shepp(256,256,1,1); [q,qc] = contourx(x,1e-2,0);
 figure(1),imagesc(q),figure(2),imagesc(qc);
 x=.5*shepp(256,256,1,1); [q,qc] = contourx(x,1e-2,1);
 figure(1),imagesc(q),figure(2),imagesc(qc);

 author: A. Djafari

CROSS-REFERENCE INFORMATION ^

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