rotate270: Rotate an image (or matrix) 270 degrees.
In IM: Orthogonal Moment Analysis

Description Usage Arguments Value Author(s) See Also Examples

Rotate an image (or matrix) 270 degrees.

1	rotate270(img)

img

A matrix or numeric array representation of an image.

An image of equal dimensionality to the input, rotated 270 degrees.

Allison Irvine

displayImg

	data(pirate);
	#perform histogram equalization
	img = histeq(img);
	#convert to grayscale
	img = rowSums(img, dims=2)/3;
	#rotate image 270 degrees so it appears upright
	img = rotate270(img);
	#set colors
	levels = seq(0,1,.0000001);
	g = gray(levels);
	image(img,col=g)