4.7 | 29 ratings Rate this file 320 downloads (last 30 days) File Size: 48.13 KB File ID: #7744

Color Space Converter

28 May 2005 (Updated 16 Aug 2006)

Convert color images between RGB, YCbCr, HSV, HSL, CIE Lab, CIE Luv, CIE Lch, and more.

Editor's Notes:

This is a File Exchange Select file.

Select files are submissions that have been peer-reviewed and approved as meeting a high standard of utility and quality.

Download Now | Watch this File

File Information
Description	The M-file colorspace included in this package is a self-contained MATLAB function that converts color images between R'G'B', Y'PbPr, Y'CbCr, Y'UV, Y'IQ, Y'DbDr, JPEG-Y'CbCr, HSV, HSL, XYZ, CIE Lab* (CIELAB), CIE Luv* (CIELUV), and CIE L*ch (CIELCH). B = colorspace('dest<-src', A) converts image A from color space 'src' to color space 'dest'. Example: B = colorspace('HSV<-RGB',A); % Convert image A from R'G'B' to HSV C = colorspace('YCbCr<-HSV',B); % Convert HSV to Y'CbCr D = colorspace('RGB<-YCbCr',C); % Convert Y'CbCr back to R'G'B' See the HTML file for more information.
Acknowledgements	This submission has inspired the following: Bilateral Filtering
MATLAB release	MATLAB 5.3 (R11)
Zip File Content
HTML Files	colorspace/doc/colorspace.html
Other Files	colorspace/colorspace.m, colorspace/demo/colorspace_ciedemo.m, colorspace/demo/colorspace_demo.m, colorspace/doc/colorspace_01.jpg, colorspace/doc/colorspace_02.jpg, colorspace/doc/colorspace_03.jpg, colorspace/test/test_main.m

Tags for This File
Everyone's Tags	cie, color, hsl, hsv, rgb, ycbcr
Tags I've Applied
Add New Tags	Please login to tag files.

Comments and Ratings (33)
07 Jun 2005	Pushkar Pradhan	Very user friendly, however I wish it had the HLS model based on the triangle model: L=(R+G+B)/3
08 Oct 2005	Nolan McGee
09 Nov 2005	er rtq
07 Mar 2006	monly w.
15 Mar 2006	tahir lord
15 Mar 2006	tahir lord	no
31 Aug 2006	Steven De Lamas	Great effort.. Thanks!
03 Oct 2006	jason tu	Good
14 Nov 2006	shiquan yang	very useful in matlab v6.5 which have only 4 kinds of color spaces conversion
28 Dec 2006	sai githa	great!
05 Feb 2007	Jubi Jubi	Very good!
04 Mar 2007	raja rao chatla	This is a good attempt to study color conversion algorithms
09 May 2007	Rayner Tiam
04 Sep 2007	badtiger badtiger	can not download the .zip file
06 Sep 2007	ali fotouhi
08 Sep 2007	alireza kashanipour	the range of H in HSL space is [0,255] but your rgb2hsl function ('hsl<-rgb') get value in [0,360]!!!!
09 Sep 2007	alireza kashanipour	oh sorry,right with you,so sorry again and tanx alot for sharing,
21 Nov 2007	anh nguyen
30 Dec 2007	Paul Koppen
12 Feb 2008	prem kumar
10 Mar 2008	liliana españa
01 Apr 2008	David IMM
02 Apr 2008	Jakrawut Janta
24 Jun 2008	manish meshram	good
15 Jul 2008	zhang lily	help for me, very useful
18 Sep 2008	Richie Cotton	Easy to use; well documented; very useful tool. Thanks.
02 Oct 2008	Dinesh Thakur
13 Nov 2008	Royi Avital	Hello. I used this M file to convert from sRGB to LAB. I compared the Values from your method to those from using "makecform" and found them to be different, is there a reason? Furthermore, both of them are different than L Channel in Photoshop. Could anyone help me get the exact values of L channel in Photoshop? Thanks.
27 Apr 2009	Florian	very usefull and nice docs
03 May 2009	Daniel N	Thank you!! I find it for long time,almost,it is need money, but,this is free, thank you for sharing~~
12 Aug 2009	shoo chen	Thank you!! ^_^
07 Sep 2009	Masoud	Perfect. Thank you!
06 Nov 2009	James	thanks

Please login to add a comment or rating.

Updates
16 Aug 2006	Created Select structure, added support for CIE color spaces

Tag Activity for this File
Tag	Applied By	Date/Time
color	Pascal Getreuer	22 Oct 2008 07:49:32
rgb	Pascal Getreuer	22 Oct 2008 07:49:32
ycbcr	Pascal Getreuer	22 Oct 2008 07:49:32
hsv	Pascal Getreuer	22 Oct 2008 07:49:32
hsl	Pascal Getreuer	22 Oct 2008 07:49:32
cie	Pascal Getreuer	22 Oct 2008 07:49:32

MATLAB Central Terms of Use

NOTICE: Any content you submit to MATLAB Central, including personal information, is not subject to the protections which may be afforded information collected under other sections of The MathWorks, Inc. Web site. You are entirely responsible for all content that you upload, post, e-mail, transmit or otherwise make available via MATLAB Central. The MathWorks does not control the content posted by visitors to MATLAB Central and, does not guarantee the accuracy, integrity, or quality of such content. Under no circumstances will The MathWorks be liable in any way for any content not authored by The MathWorks, or any loss or damage of any kind incurred as a result of the use of any content posted, e-mailed, transmitted or otherwise made available via MATLAB Central. Read the complete Terms prior to use.