Steve on Image Processing and MATLAB

Concepts, algorithms & MATLAB

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pixelgrid

Posted by Steve Eddins,

Some years ago, I blogged about how to overlay a pixel grid on an image, so that you could clearly see pixel boundaries on a zoomed-in view of the image. Something like this:... read more >>

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 >>