A MATLAB user recently asked in the MATLAB newsgroup how to fill "small" holes in a binary image. The function imfill can be used to fill all holes, but this user only wanted to fill holes... read more >>

Last fall I wrote about a complaint some MATLAB users had about reading certain kinds of TIFF files. Specifically, some users have TIFF files that each contain tens of thousands of images—or... read more >>

Today I want to show you a morphological operation called "opening by reconstruction." The normal morphological opening is an erosion followed by a dilation. The erosion "shrinks" an image... read more >>

Some nonlinear image processing operations can be expressed in terms of linear filtering. When this is true, it often provides a recipe for a speedy MATLAB implementation.... read more >>

Today I want to demonstrate a useful technique to produce a false-color visualization of different sets of binary image objects. Here's the sample image that we'll use: url =... read more >>

Here's a very common question we receive: "How do I process a set of image files in a directory?" I first posted an example illustrating "batch processing" of a set... read more >>

I thought I would finish my discussion of applylut and makelut by describing a performance optimization we implemented for version 6 (R2007b) of the Image Processing Toolbox.
A couple of years ago,... read more >>

The June 2008 issue of Scientific American contains the article "Digital Image Forensics," by Hany Farid, Professor and Associate Chair of Computer Science at Dartmouth College. Professor Farid... read more >>

Congratulations to the Phoenix team for a successful landing and deployment on Mars! Mission leadership: University of Arizona, Tucson Mission project management: NASA Jet Propulsion... read more >>

This is the third post about using lookup tables to process binary images. The first two posts were: Introduction Basic... read more >>