Comments on: What happened to isgray, isind, isbw, and isrgb? http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/ Steve Eddins manages the Image & Geospatial development team at The MathWorks and coauthored Digital Image Processing Using MATLAB. He writes here about image processing concepts, algorithm implementations, and MATLAB. Sat, 11 Feb 2012 18:27:50 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Steve http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23323 Steve Wed, 28 Jul 2010 20:27:52 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23323 Ram—Happy to help. :-) Ram—Happy to help. :-)

]]> By: Ram http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23322 Ram Wed, 28 Jul 2010 20:12:23 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23322 Steve, thanks for waking me up. That was so trivial and I ignored to look into doc. It took me 10 secs to get what I wanted :) Steve, thanks for waking me up. That was so trivial and I ignored to look into doc. It took me 10 secs to get what I wanted :)

]]> By: Steve http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23321 Steve Wed, 28 Jul 2010 13:56:59 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23321 Ram—I suggest that you review the <a href="http://www.mathworks.com/access/helpdesk/help/techdoc/matlab_prog/br04bw6-38.html" rel="nofollow">MATLAB documentation for structures</a>. Ram—I suggest that you review the MATLAB documentation for structures.

]]> By: Ram http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23317 Ram Wed, 28 Jul 2010 06:56:43 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-23317 So, I understand that henceforth we need to use 'imfinfo' ti determine the image type. How do I retrieve any field in the structure returned by 'imfinfo'. Say I want to know if the image is color or grayscale which is contained in the 'ColorType' field, how do I retrieve its contents ? So, I understand that henceforth we need to use ‘imfinfo’ ti determine the image type. How do I retrieve any field in the structure returned by ‘imfinfo’. Say I want to know if the image is color or grayscale which is contained in the ‘ColorType’ field, how do I retrieve its contents ?

]]> By: Pratyusha http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21136 Pratyusha Wed, 08 Oct 2008 19:12:51 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21136 Thank you..! Thank you..!

]]> By: Steve http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21132 Steve Wed, 08 Oct 2008 13:08:11 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21132 Pratyusha—Use <tt>rgb2gray</tt>. That hasn't changed. Pratyusha—Use rgb2gray. That hasn’t changed.

]]> By: Pratyusha http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21131 Pratyusha Tue, 07 Oct 2008 23:33:21 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-21131 Hi Steve, Since isrgb isnt working anymore, how do we convert an RGB image into Intensity or gray scale image now? It is not given in the HELP of Matlab 7.1 that I'm using. Could you please help me with that? Thanks! Hi Steve,

Since isrgb isnt working anymore, how do we convert an RGB image into Intensity or gray scale image now?
It is not given in the HELP of Matlab 7.1 that I’m using.
Could you please help me with that?

Thanks!

]]> By: Steve http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6768 Steve Thu, 14 Jun 2007 18:17:45 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6768 Hanaa - I don't have information on those terms and operations. May I suggest that you use libraries, journals, books, and Internet searches? Hanaa – I don’t have information on those terms and operations. May I suggest that you use libraries, journals, books, and Internet searches?

]]> By: hanaa saleh http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6767 hanaa saleh Thu, 14 Jun 2007 17:28:40 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6767 i mant to perform the ambiguity function on thr evoked potential of EEG signals and use fisher contrast for classification how i find ambiguity function and fisher contrast and perform them on matlab i mant to perform the ambiguity function on thr evoked potential of EEG signals and use fisher contrast for classification how i find ambiguity function and fisher contrast and perform them on matlab

]]> By: Steve http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6685 Steve Wed, 02 May 2007 12:20:56 +0000 http://blogs.mathworks.com/steve/2007/03/09/what-happened-to-isgray-isind-isbw-and-isrgb/#comment-6685 James - I'm sorry, but I don't understand your question. It it about image processing, and can you be much more specific? James – I’m sorry, but I don’t understand your question. It it about image processing, and can you be much more specific?

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