Comments on: All about pixel colors: Grayscale and binary images http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/ 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/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22776 Steve Mon, 01 Mar 2010 14:37:01 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22776 Shahnawaz—I did not think your question was relevant to the topic of this post. This blog is not a general help forum; comments should be relevant to the posts. Shahnawaz—I did not think your question was relevant to the topic of this post. This blog is not a general help forum; comments should be relevant to the posts.

]]> By: shahnawaz http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22775 shahnawaz Mon, 01 Mar 2010 13:24:53 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22775 Hi steve I posted a question about finding distances between binary objects. I thought it would be relevent as aspects of binarisation are being discussed here using Matlab ?? Hi steve I posted a question about finding distances between binary objects. I thought it would be relevent as aspects of binarisation are being discussed here using Matlab ??

]]> By: Kaly http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22744 Kaly Mon, 22 Feb 2010 14:29:07 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22744 thanks a lot Steve. thanks a lot Steve.

]]> By: Steve http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22741 Steve Mon, 22 Feb 2010 12:41:47 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22741 Kaly—Pick which pixels you want to display. For example, display the upper-left 10-by-10 block: <pre class="code"> bw(1:10, 1:10) </pre> Kaly—Pick which pixels you want to display. For example, display the upper-left 10-by-10 block:

  bw(1:10, 1:10)
]]> By: Kaly http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22738 Kaly Mon, 22 Feb 2010 07:45:06 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22738 Hi Steve, i have a binary image. how to display it in the 10 by 10 matrix form? i tried by giving simply a variable name but there are so many no. of rows & columns displayed. please help me. Hi Steve,

i have a binary image. how to display it in the 10 by 10 matrix form?
i tried by giving simply a variable name but there are so many no. of rows & columns displayed.
please help me.

]]> By: Steve http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22710 Steve Tue, 16 Feb 2010 12:19:23 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22710 Ali—Try using the function <tt>grayslice</tt> with the second syntax. Ali—Try using the function grayslice with the second syntax.

]]> By: Ali http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22705 Ali Mon, 15 Feb 2010 23:16:02 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22705 Dear Steve, I have got a gray scale image (MRI image) that has values between 0 and 1, I am interested in displaying the pixels in different colors such as pixels with values 0-0.3 in yellow pixels with values 3.1-5 in blue .... etc Many thanks Ali Dear Steve,

I have got a gray scale image (MRI image) that has values between 0 and 1, I am interested in displaying the pixels in different colors such as

pixels with values 0-0.3 in yellow
pixels with values 3.1-5 in blue
…. etc
Many thanks
Ali

]]> By: kavitha http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22699 kavitha Sun, 14 Feb 2010 05:34:54 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22699 Thank u very much steve. The code u sent worked . Thank u very much steve. The code u sent worked .

]]> By: Steve http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22692 Steve Thu, 11 Feb 2010 12:25:27 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22692 Sundar—I don't recall seeing this comment submitted before, but it is certainly off-topic for this post. In any case, I don't have time right now to provide individual consulting on image segmentation problems. You might consider posting your query to the <a href="http://www.mathworks.com/matlabcentral/newsreader/" rel="nofollow">MATLAB newsgroup</a>; there are some knowledgeable people there who often chime in on image processing questions. You might consider providing your sample images in a more common format that's easily displayable in a browser, such as JPEG or PNG. Many people will not be able to diosplay your .eps files. Sundar—I don’t recall seeing this comment submitted before, but it is certainly off-topic for this post. In any case, I don’t have time right now to provide individual consulting on image segmentation problems. You might consider posting your query to the MATLAB newsgroup; there are some knowledgeable people there who often chime in on image processing questions. You might consider providing your sample images in a more common format that’s easily displayable in a browser, such as JPEG or PNG. Many people will not be able to diosplay your .eps files.

]]> By: sundar http://blogs.mathworks.com/steve/2006/04/05/all-about-pixel-colors-grayscale-and-binary-images/#comment-22691 sundar Thu, 11 Feb 2010 10:45:24 +0000 http://blogs.mathworks.com/steve/?p=42#comment-22691 Sorry I used the wrong word in the following line in my previous post % It already looks like it has segmented well but I would like to further use watershed to "segment (and not remove)" protein accumulations Sorry I used the wrong word in the following line in my previous post
% It already looks like it has segmented well but I would like to further use watershed to “segment (and not remove)” protein accumulations

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