Victor Image Processing Library How-to Tips

Watercolor Effect

The watercolor effect is created by smoothing out the irregularities in the image and then accentuating the color boundries.

Original

Watercolor

Watercolor - the Source Code

This function will create a watercolor version of any grayscale or color image, 8- or 24-bit. Requires Victor Image Processing Library v 4.1x or higher.

int watercolor(imgdes *srcimg, imgdes *resimg)
{
   imgdes tmpsrc;
   int cols, rows, rcode;
   double gamma = 0.7;

   cols = CALC_WIDTH(srcimg);
   rows = CALC_HEIGHT(srcimg);

   allocimage(&tmpsrc, cols, rows, srcimg->bmh->biBitCount);
   copyimage(srcimg, &tmpsrc);
   
   gammabrighten(gamma, &tmpsrc, &tmpsrc);
   removenoise(&tmpsrc, &tmpsrc);
   removenoise(&tmpsrc, &tmpsrc);
   removenoise(&tmpsrc, &tmpsrc);
   sharpen(&tmpsrc, &tmpsrc);

   rcode = copyimage(&tmpsrc, resimg);

   freeimage(&tmpsrc);
   return(rcode);
}

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