Two of the effects you mentioned (pseudo-infared and night vision) are pretty straight-forward and can be done quickly. The cartoon vision is more difficult and may require the use of native libraries.
I have 12 months of professional android experience, and my own app hosted on the Google store called RiffBender. I would be happy to make this app for you at this price, provided that you do not have any complicated requirements for the UI-- if you do have a particular look-and-feel in mind that's great, but will have to be negotiated later. I will happily code the internals and get everything functional for you straight away, just let me know!