Comparing Images PHP Tool

We want a PHP Code to compare static images. Here you find some interested Infos for image comparing: [login to view URL] [login to view URL] Function: 1. we insert 2 different URLs (check image) 2. Your PHP Code check the 2 different URLs for Images and save the images in max size 100px x 100px on my server. give the images the name for originals "[login to view URL]" and for copys "[login to view URL]" 3. If there is a comparing image, the PHP Code deliver the 2 images on a website with URL Links 4. When mouseover on the small images then show the original size images from the original image url in the mouse over window 5. sent information check details with email when the user want this 6. When a person click "Yes, Its a copy" please insert all information check details to my little webmaster admin The new service must find - the same images in different sizes (example: original image is 200px and the copy is 620px) - the same image with and without watermarks - the same image in different borders (example: original has no boarder and the copy has a black boarder) - when the copy is mirroring - when in the background are some changes like colour (example: original has white background and the copy has a black background) - when one of the images are without or with rectangular or round corners)