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... 続きを読む >>

In a complete coincidence, two different coworkers today sent me links to two different works of 3Blue1Brown on YouTube. I loved both of them, and I wanted to share them with you. The first one... 続きを読む >>

ContentsIntroductionFind the image objectGet the spatial coordinates for drawing the outlineConstruct the x- and y-vectorsDraw the linesIntroductionSome years ago, I blogged about how to overlay a... 続きを読む >>

Today I want to wrap up (for now) my series on multiresolution pyramids by showing you how to make this strange-looking fruit: This a slightly nontraditional demonstration of a technique... 続きを読む >>

Does this line of code make you raise your eyebrows in puzzlement?c = sum(A,[1 2]) If so, you are likely an experienced MATLAB user who does not make a habit of carefully studying the release notes,... 続きを読む >>

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,... 続きを読む >>

Last time, I talked about the function impyramid and how I have been dissatisfied with it. (Confession: I designed it.) Today I want to present an alternative approach to creating a multiresolution... 続きを読む >>

There's a function in the Image Processing Toolbox that I'm not especially fond of: impyramid.I shouldn't tell you who designed this function, but I'll give you a hint: his initials are "Steve... 続きを読む >>

I was noodling around recently with a future blog topic (multiresolution pyramids; stay tuned) when I was reminded of a recent addition to MATLAB: the function imtile, introduced in R2018b.This... 続きを読む >>

An Image Processing Toolbox user recently reported to us good results for using makecform and applycform to convert colors from sRGB to CMYK. Here's the code they used:c =... 続きを読む >>