Adaptive steganographic scheme for GIF animated images
A novel adaptive steganographic scheme for graphics interchange format (GIF) animated images is proposed.Image pixels are classified as data embeddable and nonembeddable ones by the adaptive rule of inter frames,which is built by color-luminance variance in the same position and color-luminance average,and the adaptive rule of intra frames,which is built by color-order and color-map.Secret irrformarion is embedded into certain frames of the iamge.Experimental results show that the proposed scheme can achieve a good balance between stego-image quality and data-embedding capacity.Compared with other steganographic schemes,the proposed one has a high security,which guarantees unauthorized persons to extract the secret information extremely difficultly.
graphics interchange format (GIF)animated imagesteganographyadaptive
NETL
NSTL
万方数据
维普
