4.0 | 1 rating Rate this file 61 downloads (last 30 days) File Size: 1.45 KB File ID: #25625

Quick routine to plot RGB overlay of three images

21 Oct 2009

plotRGB allows quick plotting of an overlay of three grayscale images

File Information
Description	plotRGB allows quick plotting of an overlay of three grayscale images with possible custom scaling of the R, G and B intensity ranges grayscale ranges are normalized for RGB plot
MATLAB release	MATLAB 7.0.4 (R14SP2)
Zip File Content
Other Files	license.txt, plotRGB.m

Tags for This File
Everyone's Tags	image overlay, rgb(2), rgb normalize
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Comments and Ratings (3)
21 Oct 2009	Jan Simon	A short help text exists, but is not very descriptive. No H1-line. Year and author are mentioned. The automatic parsing of the help is impeded by using %% as comment chars. The source has no comments. min(min(X)) would be a faster as min(X(:)), same for max. Pre-allocation of tempim is not needed. Summary: It works, the function is useful, some improvements would be good.
21 Oct 2009	us	...min(min(X)) would be a faster as min(X(:))... not quite % ic2/2*2.6ghz/2gb/winxp.sp3/r2009b x=rand(1000); tic;for i=1:1000;min(x(:));end;toc % Elapsed time is 1.469955 seconds. tic;for i=1:1000;min(min(x));end;toc % Elapsed time is 1.491293 seconds. for smaller xes, its even faster... just a thought us
22 Oct 2009	Jan Simon	On a multi-core machine MIN(MIN(X)) seems to be faster than MIN(X(:)). On a single core (Matlab 2009a), MIN(X(:)) is 16% faster with the example of <us>. Follow <us> to be prepared for the future. Thanks <us>.

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Tag Activity for this File
Tag	Applied By	Date/Time
image overlay	Lennaert	21 Oct 2009 11:18:48
rgb	Lennaert	21 Oct 2009 11:18:49
rgb normalize	Lennaert	21 Oct 2009 11:18:49
rgb	Nick Haddad	21 Oct 2009 13:35:53

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