Visible Watermarking Technique Based on Human Visual System for Single Sensor Digital Cameras

Table 1

Watermark visibility evaluation.

MOS	Description
5	Excellent. No effort required to recognize completely the watermark pattern
4	Good. No appreciable effort required to recognize completely the watermark pattern
3	Fair. Moderate effort required to recognize completely the watermark pattern (small part of watermark is not visible)
2	Poor. Considerable effort require to recognize completely the watermark pattern (some part of the watermark is not perceptible)
1	Unacceptable. The watermark is not perceptible