imgGrayScaleErosion: Erosion of a gray scale image
In matiasb/biOps: Image processing and analysis

Description Usage Arguments Value Note Examples

This function makes a dilation of a gray scale image with a given mask. This is, it applies the mask in every image pixel and sets current point to the minimum of the sums of the corresponding pair of pixel values in the mask and image.

1	imgGrayScaleErosion(imgdata, mask)

`imgdata`	The image
`mask`	Mask to apply operation

return an imagedata object

This function accepts gray scale images and will fail with color ones.

	## Not run: 
		x <- readJpeg(system.file("samples", "violet.jpg", package="biOps"))
		mat <- matrix (0, 3, 3)
		mask <- imagedata (mat, "grey", 3, 3)
		y <- imgGrayScaleErosion(x, mask)
	
## End(Not run)