website/book/resource for manipulating images?

[Cyprus106]

Does anybody have any good websites, books, whatever for working with and manipulating images? Topics I need some information on are conversions (to greyscale, from one type to another, etc.), line fitting and corner detection on a line (those are important), and a few other advanced types of things. I've found some resources for conversion. That shouldn't be a problem. What I'm concerned about is things like recognizing a rectangle in an image, etc. I was hoping some image junkie somewhere had a good website for this sort of thing that I just hadn't wandered upon quite yet.

Any fingers in the right direction would be awfully appreciated!

[arnaudk]

If you want to recognize specific lines and curves in images, check out the Hough transform.

[SpecialKay]

Not sure if there is any free ware out there. But you could look in to MIL (Matrox Imaging Libary)

[arnaudk]

Also, have a look at the great open source image manipulation suite called imagemagick. You may want to use its powerfull C++ API, magick++.