Developer Mike G. read my recent post about three-dimensional image rotation and suggested that users might want to use the MATLAB function makehgtform to construct the affine transform matrix. It... 続きを読む >>

The thirteenth International Conference on Image Processing (ICIP) is next month in Atlanta, Georgia. I'll be attending to give a special presentation on software development tools and techniques... 続きを読む >>

If you look closely at the bottom of my last post, you'll see "Published with MATLAB 7.3" in small gray text. Yep, the R2006b release, including MATLAB 7.3, started shipping on September 1. Here... 続きを読む >>

Someone here recently puzzled over the output of the Hough transform functions in the Image Processing Toolbox. The Hough transform is used to detect line segments, typically in binary... 続きを読む >>

Thanks to Kimo Johnson and Perttu Ranta-aho for responding to my custom spatial transformation challenge. Contents Kimo's submission ... 続きを読む >>

Blog reader Stephen N., who's been following my posts about spatial transformations, asked me last week how to rotate a three-dimensional image. ... 続きを読む >>

Software compatibility is a tricky subject. No one likes it when an incompatible change occurs in a software application they rely on. So why do we sometimes find it necessary to make an... 続きを読む >>

Were you intrigued by the custom spatial transformations I showed last week? Here's a challenge for you: Create a sample image transformation that is in some way creative, interesting, or just... 続きを読む >>

Blog reader David A. asked me a while back about how to transform an image based on some mathematical function. For example, the online paper "Visualizing complex analytic functions... 続きを読む >>

The function imtransform has several optional parameters that allow you to fine-tune its behavior. Today's topic is about the parameters that let you control where the input... 続きを読む >>