earticle

영어

Steganography is a branch of information hiding. Payload volume and security of confidential data are major challenges of steganography methods. This article presents high volume payload and secure steganography technique based on integer wavelet transform. The cover image is partitioned into 8×8 non overlapping blocks, then each transformed block partitioned into two subsets and secret message is embedded in proper subset. To achieve higher security, Haar wavelet transform is applied to the secret message before embedding it. Experimental results indicate low degrading of the original image by hidden secret message of rather high volume.