imgPrewittCompassGradient {biOps} | R Documentation |
This function enhaces image's edges by convoluting with the Prewitt method. Base matrix is:
1 | 1 | -1 |
1 | -2 | -1 |
1 | 1 | -1 |
imgPrewittCompassGradient(imgdata)
imgdata |
The image |
return an imagedata object
## Not run: x <- readJpeg(system.file("samples", "violet.jpg", package="biOps")) y <- imgPrewittCompassGradient(x) ## End(Not run)