Google's algorithm deletes the stamp on stock photos

The Google Research team exploited this vulnerability by creating an algorithm to remove image watermark on a website.

The algorithm does this after analyzing the image of the portal, detecting identical stamps and creating masks to remove the transparent half layer on the image, restoring the original image.

This algorithm is effective because all websites providing stock images use watermark in the same way for all images.

Google warns websites that offer stock photos

Researchers say they do this research for good purposes, to improve the security of these ports and to protect the ownership of photo sellers on the website.

Restore the original image after deleting the watermark on the image

Google has sent its own research results to all affected ports along with corrective measures. Researchers recommend stock photo web portals that use a watermark to transform a bit when used on photos.

Some small changes such as shape, position, transparency are sufficient for the algorithm to be inoperable and prevent others from recovering the original image.

The algorithm of the Google Research group is detailed in the ' On The Effectiveness Of Visible Watermarks ' report' new http://openaccess.thecvf.com/content_cvpr_2017/papers/Dekel_On_the_Effectiveness_CVPR_2017_paper.pdf presented at Computer Vision and Pattern Recognition Conference (CVPR - Computer vision conference and 2017 pattern recognition). The video below will summarize the study of the group.