Blog reader Alex asked a question this week about filling holes in this binary image.url = 'https://blogs.mathworks.com/images/steve/2013/eye-heart-matlab.png'; bw = imread(url); imshow(bw) Alex... read more >>

I'm going to take a break from looking at M&Ms this week and instead consider a question that Richard asked yesterday: "I have two binary images of the same size. I want to select... read more >>

Last week I wrote that I do not normally worry very much about whether a variable name inside a function I'm writing might be the same as the name of a function somewhere else. Unfortunately, I... read more >>

Digital Image Processing Using MATLAB has three coauthors, and we are each responsible for different aspects of writing and other book-related activities. One of my responsibilities is to keep... read more >>

This post is another in my series on morphological dilation and erosion algorithms. One of the algorithm techniques used by imdilate and imerode is binary image bit packing. In bit packing,... read more >>

This is the second in a short series on using lookup tables for binary image neighborhood operations. See the first post for the basic idea. The Image Processing Toolbox has two... read more >>

Last week I wrote about a possible modification to poly2mask that would estimate how much of each pixel is contained within a polygon. The idea was to use a regular 5-by-5 subgrid and ... read more >>