Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB

Posts 491 - 500 of 597

Upslope area – Plateau processing 5

[NOTE: After I originally wrote this post about handling plateaus, I discovered problems with the method, so I am no longer using it. I revisited the plateau issue in a later post. -SE] ... read more >>

Image Processing Toolbox bundled with latest student version

The MathWorks announced yesterday the availability of MATLAB® & Simulink® Student Version R2007a. Readers of this blog might be interested to know that several additional... read more >>

Upslope area – Plateau detection

In my previous upslope area post, I showed this graphic of pixel flow around North Pond in Milford, Massachusetts: Notice that pixels in the pond have no arrows. In fact, the... read more >>

Connected component labeling – Part 6 25

In this part of the connected component labeling series, I'll finally get to one of the algorithms actually used in the Image Processing Toolbox. It's based on a technique called ... read more >>

How do you spell “l”? 5

Early in my graduate school days, I once spent a couple of days poring over code listings trying to find the cause of a mysterious bug. Eventually I discovered that the code had a "1" somewhere it... read more >>

Upslope area – Flow examples

In Part 2 of the upslope area series, I showed an M-file, pixelFlow, that could calculate a pixel's flow direction and magnitude according to the D-infinity method of Tarboton. Let's... read more >>

Connected component labeling – Part 5 39

OK, I've learned an important lesson about this blog: I really shouldn't start up two topics series at the same time. It's too hard to find the time to compose posts on both topics each... read more >>

Upslope area – D-infinity flow 7

A few weeks ago I promised a series on developing a MATLAB algorithm to compute upslope area. Now I'm ready to begin that project in earnest. First, though, I'd like to comment on the... read more >>

Connected component labeling – Part 4 26

In the previous post in this series I talked about forming a graph based on pixel neighbor relationships, and then finding the connected components of the graph. Another approach starts... read more >>

New Student Version of MATLAB & Simulink

A new release (R2007a) of the Student Version of MATLAB & Simulink is now available. Several add-on products are now bundled with the Student Version, including the Image Processing... read more >>

Posts 491 - 500 of 597

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