(summary of comment thread)
I strongly recommend against trying to use any of these smartphone camera replacement parts. While they are cheap, this is because the signal they output is nigh impossible for you to use, even if you knew its specifications, which is unlikely given proprietary parts often have proprietary, non-public protocols. Even if you did have it, you'd likely have to implement a linux kernel extension for Raspberry Pi yourself to support it. Far more work than it's worth.
If you actually want to do image processing, there is a clear recommendation: the Raspberry Pi camera interface. RasPis have a special flex socket on the board for a camera, and you can buy cameras which work with the
raspivid etc. commands included in raspbian with no extra setup. This allows you to use OpenCV or similar image processing libraries, or write your own, without having to worry about bitbanging obscure camera protocols.
No-name camera boards can be bought from eBay or similar sites for less than US$20, and they support 30fps 5 MP image/video capture to the Raspberry Pi natively and easily. Just search for "Raspberry Pi camera".
If you're really sure you're up to the challenge of hacking a proprietary camera module, you'll want to do thorough research finding the exact protocol specifications for these camera chips first, and try to find ones that are the most common, for the highest chance of compatibility, and likelihood of others having made progress on using them. Good luck!