How to determine if a photo is corrupted?

Question

I have a requirement where in I have to determine whether a photo is corrupted and accordingly tag it as such.

Another thing, I need is to determine if an Image has

Answer 1

Since you used the term "requirement", I suspect that you're doing a job for someone, possibly as a contract. So make sure that you nail the requirements before worrying about the code.

IMO, you need to get samples of test cases. As others mentioned, failure to load the file as a particular format will be one test. But what about a .jpg that loads ok, but the bottom third is missing? Or a .jpg that loads ok but has green "static" lines in the middle where an error occurred upstream somewhere (on the camera, photoshop, whatever) but then the processing recovered and resumed? In this case, the .jpg may really have green lines in it. Is that considered "corrupt" or not? This is where you need to be careful, especially if it's a contract job.