bio_img_steve

Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB

Note

Steve on Image Processing with MATLAB has been archived and will not be updated.

imfinfo, imread can automatically detect the image format 9

Didja know? Functions imfinfo and imread do not depend exclusively on the filename extension (for example, .jpg, .png, .tif, etc.) to determine the image file format. I thought about this because a... 続きを読む >>

Finding pixels adjacent to a mask 7

Here's a quick tip. A user question came in recently that involved a step of finding the pixels adjacent to foreground pixels in a binary image. Suppose you have a binary mask image,... 続きを読む >>

Intruder detection example 8

MathWorks developer Dave L. created an Intruder Detection example to demonstrate how Image Acquisition Toolbox and Data Acquisition Toolbox can work together. The program displays live video and... 続きを読む >>

Webinar next week: Color Image Processing in MATLAB 2

Technical Marketing Manager Bruce Tannenbaum and I will be hosting a live webinar next Thursday, June 28, on color image processing. If you're interested, browse to the MathWorks home page,... 続きを読む >>

More info on Photoshop – MATLAB integration

As I mentioned in an earlier post, Adobe Photoshop CS3 Extended provides some MATLAB integration features. If you're interested, here are a couple of links I've seen that might be useful: ... 続きを読む >>

Border replication option of imfilter 8

Loren wrote about the 2007 MATLAB World Tour in her Art of MATLAB blog recently. Several other MathWorks developers also attended some of the events. One message that they brought back... 続きを読む >>

Connected component labeling – Wrapping up 2

I've about run out of things to say for now about connected component labeling algorithms. ("Hurray!" shouts the audience.) For reference, here's a summary of all the posts in the... 続きを読む >>

Connected component labeling – Part 7 11

I described in my previous connected component labeling post the algorithm used by bwlabeln. This time I'll talk about the variation used by bwlabel. This variation uses run-length encoding as... 続きを読む >>

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] ... 続きを読む >>

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... 続きを読む >>