Digital watermark technology has been proposed as an effective method to protect the copyright of digital image. By exploiting the characteristic of human visual system (HVS) and considering properties of discrete wavelet transform (DWT) coefficient, a novel image watermark scheme is designed in this paper. For embedding watermark, it selects wavelet detail coefficients to utilize HVS characteristic by fuzzy rough sets (FRS). The proposed scheme provides to select wavelet coefficients method using the fuzzy lower and upper approximations, which is partitioned by the FRS according to HVS. The e...
