Blog reader Ram asked a question last week that I hear fairly often: When you apply a spatial transformation to an image, how can you see the x-y coordinates when you display the image? ... read more >>

I've received several questions over the past months about the search order for the function bwlabel and whether it can be changed. Today's post discusses the search-order issue, how useful it... read more >>

When the new releases come out, I like to peruse the release notes for MATLAB. Loren and the Desktop team have already started writing about the new features in their blogs, but I thought I'd mention... read more >>

For the geoscientists in the audience who are using my upslope area functions, I just updated the files. The update fixes a problem with the computation of influence and dependence maps for data... read more >>

Every so often someone asks in comp.soft-sys.matlab for a "function like Image Processing Toolbox function foobar that works in 3-D." If I happen to see the post, I will follow up, explaining... read more >>

Last week The MathWorks released R2008a, the ninth in a series of six-month releases. (If there's an equinox coming up, look for a new MATLAB® release!)
Here are some of the highlights especially... read more >>

When we work on improving the speed of image processing functions in MATLAB, we are naturally interested in getting timing measurements. And we know customers are often timing their own code,... read more >>

I would like to announce new procedures for comments on this blog, as well as for associated e-mail traffic. First, post commenting is now in "moderate" mode, meaning that new comments will... read more >>

Earlier this year I wrote about logical indexing and linear indexing. Now I want to finish this little indexing series with an example of a technique I call neighbor indexing. I've... read more >>

Last week I posted an introduction to logical indexing. This week I want to continue with a brief discussion of linear indexing and its connection to image processing in MATLAB. Lets... read more >>