adjusting product images

I have 360 product images who needs to be adjusted. The back grey part must be full white, The shoes must be little lighter The image size must be adjusted that the white parts around are cutted out. There is a little rush in adjusting these images. No release of the milestone before finishing the project. If you can't finish the project before the time you promiss no payment. Auto cancel project. If you are not sure, don't bid