There are two pictures above; one is with watermark and the other is without.
We all know that a picture is made up by lots of pixels. What we do is breaking all the pixels of GeoVision logo and put it into a picture/image without notification and imperceptible to human eye. To detect, you need to use a file (WMProof-New.exe) contains in GeoVision software
Factors that will influence watermark survival
If you see the restored picture above, you will find the picture is not as perfect as previous one. There are many factors will influence watermark survival.
1. Image Variations/Randomness-
Because the way that digital watermarks are embedded, an image being watermarked must not be composed mostly or entirely of a single flat color if the watermark is to be imperceptible. In flat area, the watermark intensity is decreased, while in detailed regions the intensity is increased.
2. Compression methods-
If using lossy compression methods such as JPEG actually remove some image data in order to decrease file size