Computes log ratio of RGB channels in a RGBA object. More...

Functions
WlzObject *	WlzRGBChanRatio (WlzObject rgbObj, WlzRGBAColorChannel num, WlzRGBAColorChannel den, WlzRGBAColorChannel mul, int useMul, int norm, WlzErrorNum dstErr)
	Computes log ratio of RGB channels in a RGBA object for each pixel using ratio \(r\) with \[ r = m \log(1 + \frac{n}{1 + d}). \] where m is the multipler channel value or unity if not used. This results in either an object with float values or if the normalise parameter is non-zero an object with unsigned byte values normalised to the range 0-255. The numerator and denominator channels must be red, green blue, yellow, magenta, cyan, hue, staturation, brightness, or grey (modulus). More...

Detailed Description

Computes log ratio of RGB channels in a RGBA object.

Author: Bill Hill

Date: February 2008

Version

Id: 8e112987deef16744262f4b71349f1bda3d51a52

: Address: MRC Human Genetics Unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU, UK.

: Copyright (C), [2012], The University Court of the University of Edinburgh, Old College, Edinburgh, UK.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Functions

Detailed Description