Earlier this year, I learned something about DICOM datasets that surprised me. I had downloaded a Head-Neck CT+PET study, and I wanted to create a volume array in MATLAB. I tried to do this the hard way at first, and of course I got it wrong. (Spoiler: there's an easy... read more >>

Of all the MATLAB or MathWorks toolbox functions that have been mentioned in this blog since 2006, imshow and imread have appeared the most. As in last week's post, they often appear together, right at the beginning: ... read more >>

Note: this blog post describes an image display feature that is new in R2019b. You can download this release from https://mathworks.com/downloads.... read more >>

In my second year of grad school (1987-88), my thesis advisor asked me to develop some PC-based digital signal processing (DSP) tools to be used for computer-based lab assignments. (At the time, PC-based engineering labs were very new, laptops weren't a thing yet, and Student Edition of MATLAB was... read more >>

Back in the summer I had another chance to use the Color Thresholder, a very nice app that's in the Image Processing Toolbox. I happened to come across a question on MATLAB Answers - someone was looking for a way to segment the yellow region in this image:... read more >>

I recently noticed a change in the way we write some of our product release notes, and I wanted to mention it to you.... read more >>

I thought this was worth sharing. ... read more >>

I recently saw some code that transformed the RGB pixel values of an image into a Px3 matrix, such that each row contained the red, green, and blue color components of a single pixel. Today I want to show that code fragment, explain it, and then demonstrate what I think... read more >>

For today's post, I'd like to welcome guest author Kushagr Gupta, a developer on the Image Processing Toolbox team. -Steve... read more >>

My wife, Geri Eddins, has been making a lot of quilts lately. A few months ago, I printed out these 10 colors, showed them to her, and asked, "Can you make a wall hanging quilt with this color scheme? And make it look kind of mathematical?" (Whatever that means!)... read more >>