In order to solve the problem that the invisibility and robustness of the current digital watermarking technology cannot be well balanced,one region of interest (ROI) bas ed watermarking algorithm is proposed based on quick response (QR) code and Schur decomposition. In consideration of the lower time complexity of the Schur decomposition and the saliency map of the carrier i mage which accords with the human visual perception,the encrypted watermark info rmation is embedded adaptively into the coefficients of the carrier image through the discrete wavel et transform and the block Schur decomposition.During the embedding process,the inverse of norm alized saliency map is used as the embedding strength to improve the watermark invisibility.Exp erimental results show that the algorithm not only has high invisibility,and but also has strong r obustness,for some common image attacks, such as cutting,arbitrary angle rotation,Gaussian noise,salt and pepper noise ,speckle noise, Gaussian filtering,median filtering,contrast enhanced and JPEG compression, Due to the saliency map is used as the public key,the algorithm don′t need the original carrier image and the watermark image in extraction process,s o it belongs to the blind watermarking algorithm.Therefore,this algorithm has high practical a pplication value in digital product copyright protection.