about hiding data in image and sound

基于预测误差差值扩展的彩色图像无损数据隐藏，希望对大家有帮助-Prediction error difference expansion based color image lossless data hiding, we hope to help

ecently, more and more attention is paid to reversible data hiding (RDH) in encrypted images, since it maintains the excellent property that the original cover can be losslessly recovered after embedded data is extracted while protecting the