Re: CvSobel

Hello,

>If I run following code...

> IplImage* derivx = cvCreateImage(cvSize(width,height),IPL_DEPTH_16S,1);
> IplImage* scaledderivx = cvCreateImage(cvSize(width,height),IPL_DEPTH_8U,1);
> cvSobel(image2,derivx,1,0);

You have to specify both x and y orders AND the aperture size, like:

cvSobel(image2,derivx,1,0,1)  - for  x-first-derivatives and
cvSobel(image2,derivx,0,1,1)  - for  y-first-derivatives.

When the aperture size is 1, a three-sized window is employed but no
gaussian blurring is performed in the result. Try that ...

Leonardo

-- 
                   Leonardo M. B. Claudino
                 Laboratorio Metasys/DCC-UFMG
   Nucleo de Processamento Digital de Imagens NPDI/DCC-UFMG
Laboratorio de Inteligencia e Tecnologia Computacional LITC/CPDEE-UFMG






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