imgUnsharpen {biOps} | R Documentation |
This function unsharpens an image by convoluting with one of the following matrices:
1 | || | 2 | || | 3 | 1 | |||||
0 | -1 | 0 | || | -1 | -1 | -1 | || | 1 | -2 | 1 |
-1 | 5 | -1 | || | -1 | 9 | -1 | || | -2 | 5 | -2 |
0 | -1 | 0 | || | -1 | -1 | -1 | || | 1 | -2 | 1 |
Performs a difference between original image and sharpen convolved image with the specified mask
imgUnsharpen (imgdata, mask)
imgdata |
The image |
mask |
The matrix to be used in the convolution. Must be one of 1, 2, 3 (default=1) |
return an imagedata object
## Not run: x <- readJpeg(system.file("samples", "violet.jpg", package="biOps")) y <- imgUnsharpen(x, 2) ## End(Not run)