[1] [1] CUI X,NIU Y,ZHENG X,et al.An optimized digital watermarking algorithm in wavelet domain based on differential evolution for color image[J].Plos One,2018,13(5):e0196306.

[2] [2] HUANG Y,NIU B,GUAN H,et al.Enhancing Image Watermarking with Adaptive Embedding Parameter and PSNR Guarantee[J].IEEE Transactions on Multimedia,2019,21(10):2447-2460.

[3] [3] GIRI K J,QUADRI S M K,BASHIR R,et al.DWT based color image watermarking:a review[J].Multimedia Tools and Applications,2020,79(3):32881-32895.

[4] [4] YS A,CHEN T A,MIN X A,et al.A DWT-SVD based adaptive color multi watermarking scheme for copyright protection using AMEF and PSO-GWO[J].Expert Systems with Applications,2020,168(15):114414.

[5] [5] THAKKAR F,SRIVASTAVA V K.An adaptive,secure and imperceptive image watermarking using swarm intelligence,Arnold transform,SVD and DWT[J].Multimedia Tools and Applications,2021,80(5)：1-18.

[6] [6] LIU J,HUANG J,LUO Y,et al.An optimized image watermarking method based on HD and SVD in DWT domain[J].IEEE Access,2019,7(99):80849-80860.

[7] [7] ANSARI I A,PANT M.Multipurpose image watermarking in the domain of DWT based on SVD and ABC[J].Pattern Recognition Letters,2017,94(15):228-236.

[12] [12] ARAGHI T K,MANAF A A.An enhanced hybrid image watermarking scheme for security of medical and non-medical images based on DWT and 2-D SVD[J].Future Generation Computer Systems,2019,101:1223-1246．

[13] [13] LIU R,TAN T.An SVD-based watermarking scheme for protecting rightful ownership[J].IEEE Transactions on Multimedia,2002,4(1):121-128.

[14] [14] DA,CUNHA,ARTHUR,et al.The nonsubsampled contourlet transform:theory,design,and applications[J].IEEE Transactions on Image Processing,2006,15(10):3089-3101．

[16] [16] KUMAR S,SINGH B K.DWT based color image watermarking using maximum entropy[J].Multimedia Tools and Applications,2021(prepublish).

[17] [17] WEINA Z,JAN D,GEGENFURTNER K R,et al.Animal detection in natural images:effects of color and image database[J].Plos One,2013,8(10):78516-78522．

[19] [19] ZHENG Q, LIU N, WANG F. An adaptive embedding strength watermarking algorithm based on shearlets′ capture directional features[J].2020,8(8):8081377.