create white background for many images

Hello, We are not sure if this is possible. We have 700 images that have various backgrounds (clothes, shoes, etc) is it possible for a person to take all of those images into a program and make them all have a plain white background? If not, is it a lot of trouble for someone to get this done as soon as possible? I have uploaded a picture with the wrong back ground and how we would like it to look. (the white background is what we need for all pictures) need help as soon as possible!