Google research shows Using an algorithm to remove the watermark photos in a simple way.

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The research team identified patterns of the watermark. At present, paste on the photos. May be difficult for humans to remove it, but actually the watermark are relatively fixed pattern, such as a transparency rate. And if we have photos many image with watermark the same picture. We can create complete watermark again. In order to know the scope to remove watermark out.

The algorithm of the Google brought many photos as several hundred images. With the same watermark processing to create a noise-signal watermark rough (rough estimation) up.




Then when the watermarked image rough. Google using image processing technique called multi-image matte to separate layers of watermark out of the original condition. Background image restoration and repair The result is quite satisfactory.

The research of Google this piece. Not to destroy the system watermark in the photos. But the urge to use modified reversible watermark system is more difficult than ever. By twisting the watermark varies slightly when placed in each image. The algorithm of the Google cannot remove watermark this 100%.


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