Steve on Image Processing and MATLAB

Concepts, algorithms & MATLAB

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Multiresolution pyramids part 3: Laplacian pyramids

Posted by Steve Eddins,

In my April 2 post, I introduced multiresolution pyramids, and I explained my dissatisfaction with the function impyramid, which (sadly) I designed. (Aside: I had that post ready to go on April 1, but I decided that maybe I should wait a day to publish it.) I followed that up... read more >>

Pursuit Curves 2

Posted by Steve Eddins,

Here's an interesting snippet I learned while working on today's blog post: Mathematician Jacob Bernoulli asked for a logarithmic spiral to be engraved on his tombstone. Here's an example of a such a spiral.... read more >>

Animated PNG (APNG) Files 6

Posted by Steve Eddins,

Have you heard of animated PNG (APNG) files? Are you interested in creating them from MATLAB? They are supposed to be an improvement over GIF for making animations that are viewable in a web browser. (If you have an opinion about this, one way or the other, please share your... read more >>

Superpixel Posterization 6

Posted by Steve Eddins,

Today's blog post was inspired by an example written by my friend and Image Processing Toolbox developer, Alex Taylor. A few years back, Alex tinkered with using toolbox algorithms to achieve a pseudo-artistic "posterization" effect, like this: ... read more >>

These postings are the author's and don't necessarily represent the opinions of MathWorks.