Matthias Kleine wrote: > [snip] > Example: I am using a webcam to observe an area. In this > area, a red object is moving around. Now, the webcam is > delivering images to some client program (gimp plugin?). This > program now should calculate the current position of the object > in the observed area. > > Question: How could this be achieved most easily? Which format > would be best? How could the algorithm look like? > > I would appreciate any hint. > > Matthias Kleine Well, I'm not sure whether this should be on this list, but here goes anyway. In the first frame you would simply scan the entire image for a red spot. There's probably a maximum size you have, so check in a circle around the spot you found whether it is not red (to filter out large red objects and see only the small red spot). Then in subsequent frames start searching at the previous positions and search in a spiraling pattern to get to the next one quickly. Lourens
