A Luminance and Contrast Invariant

Luminance Contrast Invariant Edge Detection

Description

Luminance Contrast Invariant Edge Detection

• Required Products: Image Acquisition Toolbox
• MATLAB release: MATLAB 7 (R14)

[Dimitri Shvorob]

Madhu, are you aware of FOR..END loop? If yes, why write something like

% 0 degrees
h1m0=h1m;
h1v0=reshape(h1m0,ws*ws,1);
h2m0=imrotate(h1m0,90,'crop');
h2v0=reshape(h2m0,ws*ws,1);
[ertot(1) e2er e3er e2cm e3cm a21 a22 a31 a32]=errortot(e2v,e3v,e2m,e3m,h1v0,h2v0,h1m0,h2m0);

% 45 degrees
h1m45=imrotate(h1m,45,'crop');
h1v45=reshape(h1m45,ws*ws,1);
h2m45=imrotate(h1m45,90,'crop');
h2v45=reshape(h2m45,ws*ws,1);
[ertot(2) e2er e3er e2cm e3cm a21 a22 a31 a32]=errortot(e2v,e3v,e2m,e3m,h1v45,h2v45,h1m45,h2m45);

% 90 degrees
h1m90=imrotate(h1m,90,'crop');
h1v90=reshape(h1m90,ws*ws,1);
h2m90=imrotate(h1m90,90,'crop');
h2v90=reshape(h2m90,ws*ws,1);
[ertot(3) e2er e3er e2cm e3cm a21 a22 a31 a32]=errortot(e2v,e3v,e2m,e3m,h1v90,h2v90,h1m90,h2m90);

% 135 degrees
h1m135=imrotate(h1m,135,'crop');
h1v135=reshape(h1m135,ws*ws,1);
h2m135=imrotate(h1m135,90,'crop');
h2v135=reshape(h2m135,ws*ws,1);
[ertot(4) e2er e3er e2cm e3cm a21 a22 a31 a32]=errortot(e2v,e3v,e2m,e3m,h1v135,h2v135,h1m135,h2m135);

The code is nominally a function, but really a script spawning windows, printing numbers, etc. It can be useful, but you might want to clean it up, and add 'help'. Did you notice that your submission's title is truncated? Do you care to correct it?