Last week I posted an introduction to logical indexing. This week I want to continue with a brief discussion of linear indexing and its connection to image processing in MATLAB. Lets... 更多内容 >>

Blog reader André recently asked me how to count the number of times each color appears in an image. One short solution involves optional output arguments from the function... 更多内容 >>

Hi folks. If you want to learn a bit about the many compression methods and file formats that all share the name JPEG, check out Jeff Mather's nice summary of the JPEG... 更多内容 >>

This is the first post in a short series on index techniques that are particularly useful for image processing in MATLAB. I'll start with logical indexing today. Later I'll cover linear... 更多内容 >>

Toward the end of last year, it occurred to me that I had accumulated enough material on this blog to construct a "master class" on image processing in MATLAB. The response to my... 更多内容 >>

Happy New Year everyone! I just wrapped up a second year of blogging about image processing in MATLAB. I write once or twice a week about image processing algorithms, image processing... 更多内容 >>

Have you ever used the distance transform? For a binary image, the distance transform is the distance from every pixel to the nearest foreground (nonzero) pixel. (Sometimes you'll see... 更多内容 >>

How can I possibly resist the opportunity to post about something called METACOW? The Munsell Color Science Laboratory at the Rochester Institute of Technology (RIT) has made available... 更多内容 >>

The book Matrix Computations by Gene Golub and Charles Van Loan sits on the bookshelves of many MathWorks employees. Professor Golub, one of the founding members of the Stanford University... 更多内容 >>

Earlier this year I exchanged e-mail with blog reader Craig Doolittle. Craig was writing MATLAB scripts to clean up scanned pages from old manuscripts. One of the samples he sent me was... 更多内容 >>