Who can tell me the significance of this number: 0.814723686393179 Update: 29-Aug-2016 Sven and Sam are correct. This the first number returned by the rand function in a given session,... read more >>

In my August 8 post about Pokemon Go (and I still can't quite believe that I did that), one of the processing steps was finding the centroid of the largest object in a binary image.That reminded me... read more >>

Until about two weeks ago, I had given absolutely no thought to the possibility of a relationship between MATLAB and Pokémon Go, this summer's worldwide mobile gaming phenomenon. But then I... read more >>

There are some MathWorkers who like to try to stump each other with pictures of "mystery items." For example, last week someone posted the following picture and challenged others to guess what it is:... read more >>

Today I want to explain a MATLAB coding mistake that I have seen even experienced MATLAB users make.I was looking at some code on the File Exchange recently, and these lines caught my eye:cm_data =... read more >>

Despite recent appearances on the blog, I still exist! It's just been a little crazier than usual for the last month or so.Anyway ... I'm back, and I'm going to try to wrap things up about image... read more >>

In my 16-May-2016 post about image binarization, I talked about the new binarization functions in R2016a. Today I want to switch gears and talk about Otsu's method, one of the algorithms underlying... read more >>

In my 09-May-2016 post, I described the Image Processing Toolbox functions im2bw and graythresh, which have been in the product for a long time. I also identified a few weaknesses in the functional... read more >>

As I promised last time, I'm writing a series about functional designs for image binarization in the Image Processing Toolbox. Today I'll start by talking about im2bw and graythresh, two functions... read more >>

With the very first version of the Image Processing Toolbox, released more than 22 years ago, you could convert a gray-scale image to binary using the function im2bw.I =... read more >>