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... 更多内容 >>

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 =... 更多内容 >>

Today's blog post is dedicated to everyone whose eyes aren't as young as they used to be.In last week's blog post on pursuit curves, I showed this figure: If you ran my code exactly as I posted it,... 更多内容 >>

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... 更多内容 >>

ContentsThe Shape of a PixelWeaknesses of Using the Pixel CentersSquare PixelsDiamond PixelsCircular PixelsThe Shape of a PixelWhat is the shape of a pixel? At various times, I have a pixel as a... 更多内容 >>

Last time (if you can remember that long ago), I talked about how to find the maximum Feret diameter of a shape. The Feret diameter, sometimes called the caliper diameter, is illustrated by the diagram below. In a virtual sense, place the object to be measured inside the jaws of a caliper, with the caliper oriented at a specified angle. Close the jaws tightly on the object while maintaining that angle. The distance between the jaws is the Feret diameter at that angle.... 更多内容 >>

Last time, I wrote about finding the maximum Feret diameter for an object in a binary image, ending up with this figure: I had computed the convex hull of all the pixel corners, and then I computed... 更多内容 >>

This is the first of a few blog posts about object measurements based on a concept called the Feret diameter, sometimes called the caliper diameter. The diagram below illustrates the concept. Place... 更多内容 >>

Before I dive into today's topic, I want to invite you to come back to the MATLAB Central Blogs page in a couple of weeks. Look for something new to appear related to deep learning.Earlier today, I... 更多内容 >>

Today I want to tell you how and why I made these images: After the MATLAB R2014b release, I wrote several blog posts (Part 1, Part 2, Part 3, and Part 4) about the new default colormap, parula, that... 更多内容 >>