Published

Parameterized software tests and DIPUM examples
The book Digital Image Processing Using MATLAB (DIPUM) contains 144 examples. I know this because I watch them all...

11 years ago

Published

MATLAB code in an unexpected place
The TV show "The Americans" is a show about Soviet Union secret agents pretending to be a normal American couple...

11 years ago

Published

Quantization issues when testing image processing code
Today I have for you an insider's view of a subtle aspect of testing image processing software (such as the Image Processing...

12 years ago

Published

Color Thresholder App in R2014a
I had way too much fun this morning playing with the new Color Thresholder app (new in R2014a) in the Image Processing...

12 years ago

Published

Timing the FFT
I've seen two questions recently about the speed of the fft function in MATLAB. First, a tech support question was forwarded...

12 years ago

Published

Comparing the geometries of bwboundaries and poly2mask
MATLAB user Meshooo asked a question on MATLAB Answers about a problem with the createMask function associated with...

12 years ago

Published

roifill design critique
"Is there anything else you would like to tell us?"This was the question whose answer led me to revisit an old friend of...

12 years ago

Published

R2014a shipped! (And the developer says, “Wait, what?”)
At MathWorks, the software developers' sense of calendar time is SO out of sync with the real world. In the real world,...

12 years ago

Published

regionprops, tables, and struct2table
Today I was talking to Spandan (a regular guest blogger here) about the history of the Image Processing Toolbox function...

12 years ago

Published

Update to TopoToolbox
In 2007 I did a series of blog posts on developing MATLAB algorithms for a topological measurement called upslope area, a...

12 years ago

Published

Solving mazes with the watershed transform
I'd like to welcome back guest blogger Spandan Tiwari for today's post. Spandan, a developer on the Image Processing Toolbox...

12 years ago

Published

Automating the extraction of real data from an image of the data – part 3
I'd like to welcome back my fellow MATLAB Central blogger Brett Shoelson for the last in a three-part series on extracting...

12 years ago

Published

Automating the extraction of real data from an image of the data – part 2
I'd like to welcome back my fellow MATLAB Central blogger Brett Shoelson for the second in a three-part series on extracting...

12 years ago

Published

Automating the extraction of real data from an image of the data – part 1
I'd like to welcome back my fellow MATLAB Central blogger Brett Shoelson for the first in a three-part series on extracting...

12 years ago

Published

Image processing with a GPU
I'd like to welcome guest blogger Anand Raja for today's post. Anand is a developer on the Image Processing Toolbox...

12 years ago

Published

Generating code from Image Processing Toolbox functions
I'd like to welcome guest blogger Vignesh Krishnan for today's post. Vignesh is a developer on the Image Processing Toolbox...

12 years ago

Published

Watershed transform question from tech support
A support call came in this week from a customer trying to use watershed to segment this image: The complaint was that...

12 years ago

Published

Chess and a little text file manipulation
Here's an image of a chess position: And that's about as close to image processing as today's blog post will come. Because...

12 years ago

Published

timeit makes it into MATLAB
This is my first blog post with "Published with MATLAB R2013b" at the bottom. The latest MATLAB release shipped earlier in...

12 years ago

Published

Defining and filling holes on the border of an image
Blog reader Alex asked a question this week about filling holes in this binary image.url =...

12 years ago

Published

Introduction to spatial referencing
Today's blog post was written by Alex Taylor, a developer on the Image Processing Toolbox team. Thanks, Alex!... read more...

12 years ago

Published

TIFF, BigTIFF, and blockproc
I'd like to welcome back guest blogger Ashish Uthama for today's post. Ashish, a developer on the Image Processing Toolbox...

12 years ago

Published

Homomorphic filtering – part 2
I'd like to welcome back guest blogger Spandan Tiwari for the second post in his two-part series on homomorphic...

12 years ago

Published

Homomorphic filtering – part 1
I'd like to welcome back guest blogger Spandan Tiwari for today's post. Spandan, a developer on the Image Processing Toolbox...

12 years ago

Published

R2013a – image processing and computer vision
I've mentioned the R2013a release in two previous posts (15-May-2013 and 12-Mar-2013). Today I want to point out that...

12 years ago

Published

R2013a – Looking around in MATLAB
The first MathWorks general product release of the year, R2013a, shipped a couple of months ago. I've already mentioned it...

13 years ago

Published

JPEG and PNG – lossy and lossless image compression
I was reviewing enhancement requests recently when I came across this one: Add support for a 'Quality' parameter when...

13 years ago

Published

Revisiting dctdemo – part 4
This is the fourth and last part of my plan (my evil plan?) to rewrite an Image Processing Toolbox example from 20 years...

13 years ago

Published

Cluster-based image display
Although this is the time of year that I normally mention some of the new features from the "a" release, today I thought I...

13 years ago

Published

Revisiting dctdemo – part 3
This is the third part of my plan to rewrite an Image Processing Toolbox example from 20 years ago using more modern MATLAB...

13 years ago