Reversible Watermarking by Difference Expansion by Asad Ali

Reversible Data Embedding Using Difference Expansion by J. Tian (data hiding, difference expansion, reversible watermarki...)

DE_Algorithm(originalImage,T,EMBED_DIRECTION)

[PeakSNR, Mean2err]=psnr(OriginalImage, DegradedImage)

DE_embedding.m

Distortionless Data Hiding Based on Integer Wavelet Transform by Asad Ali

Lossless data hiding using Integer Wavelet transform by Guorong Xuan. (Reversible Watermarking) (integer wavelet trans..., distortionless data h..., guorong xuan)

[PeakSNR, Mean2err]=psnr(OriginalImage, DegradedImage)

Distortion_Less_Data_Hiding_Embedding.m

Distortion_Less_Data_Hiding_Extraction.m