This paper proposes a new color image segmentation algorithm based on the JND (Just Noticeable Difference) histogram. Histogram of the given color image is computed using JND color model.

Perceptual Watermarking should take full advantage of the results from human visual system (HVS) studies. Just noticeable difference (JND), which refers to the maximum difference that the HVS does not perceive, gives us a way to model the HVS