ROIPOLY – rectangular regions and logical indexing 26

Posted by Steve Eddins,

Several readers commented on my recent roipoly and poly2mask posts, and I wanted to follow up on a couple of issues they raised. The first issue is a common point of confusion about the selection of rectangular regions, and the second... read more >>

Costas arrays 18

Posted by Steve Eddins,

Last week I wrote about a possible modification to poly2mask that would estimate how much of each pixel is contained within a polygon. The idea was to use a regular 5-by-5 subgrid and count how many of the 25 subpixels are contained within the polygon.... read more >>