I'm going to play a small trick on you today. Try reading in this JPEG file using imread:url = 'https://blogs.mathworks.com/images/steve/2014/peppers.jpg'; rgb = imread(url); imshow(rgb) So... 続きを読む >>

The book Digital Image Processing Using MATLAB (DIPUM) contains 144 examples. I know this because I watch them all run in MATLAB at least a couple of times a year. I find watching all the... 続きを読む >>

The TV show "The Americans" is a show about Soviet Union secret agents pretending to be a normal American couple in 1981-82 or so. In the 2nd season's final episode, which I watched last... 続きを読む >>

Today I have for you an insider's view of a subtle aspect of testing image processing software (such as the Image Processing Toolbox!).I've written several times in this blog about testing software.... 続きを読む >>

I had way too much fun this morning playing with the new Color Thresholder app (new in R2014a) in the Image Processing Toolbox, so I wanted to show it to you. I've shown that picture... 続きを読む >>

I've seen two questions recently about the speed of the fft function in MATLAB. First, a tech support question was forwarded to development. The user wanted to know how to predict the computation... 続きを読む >>

MATLAB user Meshooo asked a question on MATLAB Answers about a problem with the createMask function associated with impoly. Meshooo observed a discrepancy between the output of bwboundaries and the... 続きを読む >>

"Is there anything else you would like to tell us?"This was the question whose answer led me to revisit an old friend of mine, the roifill function. This is a function that smoothly fills a... 続きを読む >>

At MathWorks, the software developers' sense of calendar time is SO out of sync with the real world. In the real world, MathWorks shipped R2014a, the first of our two annual releases, last week. In... 続きを読む >>

Today I was talking to Spandan (a regular guest blogger here) about the history of the Image Processing Toolbox function regionprops. This function is a widely-used work-horse of the toolbox. Many of... 続きを読む >>