Convert 144 jpg files to Transparent Gif and Size

Need a coder to convert approx. 144 images from jpg into a transparent gif.? Make 2 scaled saved version sizes: 1. 350 x 388 pixel size (saved as current filename). 2. 193 x 206 pixel size (saved as current filename with "_s" at end). ? ? ? This signifies that its the smaller image. Therefore there will be finally 288 images with a transparent background, optimizes for file size (but 256 colours) and in gif format based on the two above sizes. I don't mind how it is done but the inner photos of the clothing needs to be proportionate without losing any of the shape so I appreciate that the clothing? picture (i.e. some gaps) will vary within those dimensions. ## Deliverables Examples few pictures attached in zip file so you can see how they currently look.? Need all the background removing and only the picture of the product showing.