Comments on: All about pixel colors

By: krishna kishore

krishna kishore — Mon, 10 Aug 2009 07:44:41 +0000

Hi Steve,
In my college days itself (when i am doing my project ) , i have purchased two books
1. Image Processing and algorithms (some thing like that) by ruffel richards and gonzalez
2. Image Processing –> Anil K. Jain

But I dont know at that time i could not correlate theory and corresponding implementation with these books . (I am not telling that these books are not good , but my level of understanding is not upto that level that could not correlate an equation into corresponding implementation). A simple example , always i used to think sqaure wave as square wave i never thought beyond that , when i studied some calculus books (which i rate highest) like Advanced engineering mathematics by Kreyszig , then i understood that it is composed of infinite number of sine wave components , then it cleared concept of dritchlet conditions, after that fourier transform after that why laplace why Z transform .. it keeps on …

But image processing is some thing two / three dimensional (as per my little knowledge) It requires such type of vizualization and , I really felt such beauty of explantion in your blog thats why i am planning strictly to follow your blog.

If my assumptions/interpretations of things or my attitude towards subject is not aligned properly please correct me.

Krishna Kishore

By: Steve

Steve — Fri, 24 Jul 2009 00:52:16 +0000

Krishna—Thanks for the kind words. I have written occasionally about image processing algorithms and concepts independent from MATLAB. Look in the blog archives or categories (see sidebar links on the right) for topics such as geometric transforms, connected component labeling, separable convolution, polygonal scan conversion, etc. If you really want to learn the theory of image processing, how about getting a book? I'd suggest Digital Image Processing by Gonzalez and Woods for the theory, or Digital Image Processing Using MATLAB by Gonzalez, Woods, and Eddins for light theory and heavy MATLAB.

By: krishna kishore

krishna kishore — Wed, 22 Jul 2009 09:58:54 +0000

Hi Steve ,
To day only i have seen this blog .. its very good, I have worked on Matlab6.2 in 2003 when i was student , and i have done some motion picture detection kind of stuff. But at that time my concepts are not that much clear , but with lot of struggle i could manage to prove the concept which i thought. But now this blog is rezuvenating me to work once again in this field. Could you Please add the theory of image processing apart from MATLAB point of view (i.e., algorithms , transforms independent of language).
Thanks for your contribution,
Krishna Kishore

By: Steve Eddins

Steve Eddins — Mon, 20 Aug 2007 12:26:33 +0000

Mr. Dean—http://blogs.mathworks.com/steve/

By: Mr.Dean

Mr.Dean — Sat, 18 Aug 2007 09:48:29 +0000

Where I read new articles?

By: Steve

Steve — Tue, 14 Aug 2007 13:41:30 +0000

Sravan—To find the maximum value of an array A, do this:

maxval = max(A(:));

Are you looking for something else?

By: sravan

sravan — Sat, 11 Aug 2007 08:36:38 +0000

I would like to know more about finding maximum amd minimum intensity nalues using max(),min().

please assist me thankyou

By: Steve

Steve — Tue, 31 Jan 2006 13:10:09 +0000

Geoff – those images are in PNG format, which may not be recognized by very old browsers.

By: Geoff Dutton

Geoff Dutton — Tue, 31 Jan 2006 11:27:49 +0000

Hi Steve,
[Maybe don't publish this...] I love the blog. Don’t know how uyou find time to do all that writing. I get paid to write and don’t have time for it myself, lately.

Anyway, I wanted you to know that on IE 4.5 on my old Mac PPC, the two images of the DEM didn’t load. Then I tried iCab (one of the few PD browsers that works on system 9.x) and I can see everything no. So much for IE 4.5…
-Geoff