# Steve on Image Processing with MATLABImage processing concepts, algorithms, and MATLAB

Posts 11 - 20 of 32

# Visualizing the floating-point behavior of the point-on-line test1

Today's post is about this picture, which is from the paper "Classroom Examples of Robustness Problems in Geometric Computations," by L. Kettner, K. Mehlhorn, S. Pion, S. Schirra, and C. Yap,... read more >>

# Cody problem solvers: simplify a polygon

A couple of weeks ago I posted about how one might want to simplify the output of bwboundaries in order to remove unneeded vertices in the output boundaries. That is, turn this polygon: into this... read more >>

# A Cody problem: simplify a polygon7

Today I'm combining my blog post with a new problem submission on Cody. The problem is related to the function bwboundaries in the Image Processing Toolbox. This function traces the boundaries of... read more >>

# Walking along a path5

Last month I was experimenting with an algorithm in which I needed to construct a set of equidistant steps along a path consisting of line segments. (I'll call this a polyline path, or polyline for short.) Today I want to show you how to construct such a path in MATLAB. Along the way I'll show you the function improfile and give you a pointer to a database of sample range images that I found.... read more >>

# How im2html works

On June 2 I showed you how to make a table with image colors and pixels appear when you publish your MATLAB scripts to HTML using the publish function. The result looks like this:rgb =... read more >>

# New blog – Cleve’s Corner!2

All of us MathWorkers who hang out on MATLAB Central are very excited that MATLAB creator and MathWorks cofounder Cleve Moler has just become the latest MATLAB Central blogger.I think I first started... read more >>

# Making an HTML table of pixel values with colored cells3

Today's post shows you how to make a table with image colors and pixels appear when you publish your MATLAB scripts to HTML using the publish function. The result looks like this:rgb =... read more >>

# Shuffling label colors3

I've written often here about various computational and visualization techniques involving labeling connected components in binary images. Sometimes I use the function label2rgb to... read more >>

# The DFT matrix and computation time2

On my list of potential blog topics today I saw just this cryptic item labeled dftmtx. Hmm, the MATLAB dftmtx function. But have I written about this function before? I better double-check by... read more >>

# And now for something completely different3

The following video spread up and down the MATLAB Math team's hallway like wildfire yesterday: http://www.youtube.com/watch?v=ywWBy6J5gz8 I said there was some room for improvement... read more >>

Posts 11 - 20 of 32