Comments on: Upslope area – Recursive calculation procedure http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/ 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. Fri, 10 Feb 2012 18:55:59 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Steve http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6956 Steve Tue, 14 Aug 2007 13:31:10 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6956 Priti—If you have the Image Processing Toolbox, you can find a kd-tree implementation in toolbox/images/images/private. Beyond that I don't know. Check the MATLAB Central File Exchange. Priti—If you have the Image Processing Toolbox, you can find a kd-tree implementation in toolbox/images/images/private. Beyond that I don’t know. Check the MATLAB Central File Exchange.

]]> By: Steve http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6944 Steve Tue, 07 Aug 2007 13:28:30 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6944 Mark—I like it! :-) Mark—I like it! :-)

]]> By: Mark Andrews http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6942 Mark Andrews Tue, 07 Aug 2007 04:31:28 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6942 If by "better" you mean "more expensive" then on my lazy days I do this: diff = abs( phase( exp(i*theta1)/exp(i*theta2) ) ); :-) If by “better” you mean “more expensive” then on my lazy days I do this:

diff = abs( phase( exp(i*theta1)/exp(i*theta2) ) );

:-)

]]> By: Priti http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6939 Priti Thu, 02 Aug 2007 15:51:54 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6939 Hi Steve..I have a quick question not related to the topic you have posted...I m currently working on Content Based Retrieval of Videos....and I m looking for implemetation of SR trees/R trees/R* trees/SS trees or any spatial data structures in MATLAB as my source code for feature extraction is in MATLAB...I could find only C++ libraries available for that...I m not sure if there is any way to import that to MATLAB and use it or are there any coded versions available in MATLAB itself....Thanks in advance...Priti Hi Steve..I have a quick question not related to the topic you have posted…I m currently working on Content Based Retrieval of Videos….and I m looking for implemetation of SR trees/R trees/R* trees/SS trees or any spatial data structures in MATLAB as my source code for feature extraction is in MATLAB…I could find only C++ libraries available for that…I m not sure if there is any way to import that to MATLAB and use it or are there any coded versions available in MATLAB itself….Thanks in advance…Priti

]]> By: Steve http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6928 Steve Sat, 28 Jul 2007 14:40:19 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6928 Nikzad—See <a href="http://blogs.mathworks.com/steve/2007/04/26/upslope-area-part-2/" rel="nofollow">part 2</a> of this series for the pixel flow direction code. When I finish the series, I'll put the relevant code onto MATLAB Central. Nikzad—See part 2 of this series for the pixel flow direction code. When I finish the series, I’ll put the relevant code onto MATLAB Central.

]]> By: nikzad babaii http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6927 nikzad babaii Sat, 28 Jul 2007 09:21:10 +0000 http://blogs.mathworks.com/steve/2007/07/27/upslope-area-part-7/#comment-6927 Dear Steve Eddins, Thanks for your algorithm description. Could you please let me know how can I find the Matlab Code for your algorithm(finding pixel directions)? wishes nikzad babaii Dear Steve Eddins,
Thanks for your algorithm description.
Could you please let me know how can I find the Matlab Code for your algorithm(finding pixel directions)?
wishes
nikzad babaii

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