DCT, what is the benefit of using it for image processing?
I noticed that it is used in JPEG compression.
Can i use it for something else?
Is it useful for motion detection?
Is it useful for compressing further? If I convert an image to its DCT I could remove the higher frequencies to zero, then convert back to image. Would that make the image size smaller in bytes?
I have ordered books on Amazon about DCT but I cannot wait to start working with it.
In a brief synopsis/paragragh what could I consider DCT of an image for?