Is an image hash a very different beast from the hashing function used in passwords etc? In the latter we want large sensitivity to small changes, while in an i

Is an image hash a very different beast from the hashing function used in passwords etc? In the latter we want large sensitivity to small changes, while in an image hash we want a measure sensitive to similarities. Naively I'd expect image hashing to be like cross-correlation (non-linear) while password hashing can be done with shifts and modulo-2 (linear).