Min-Hui Lin, Yu-Chen Hu, Chin-Chen Chang. Both Color and Gray Scale Secret Images Hiding in a Color Image. IJPRAI, 16(6):697-714, 2002. [doi]
@article{LinHC02, title = {Both Color and Gray Scale Secret Images Hiding in a Color Image}, author = {Min-Hui Lin and Yu-Chen Hu and Chin-Chen Chang}, year = {2002}, doi = {10.1142/S0218001402001903}, url = {http://dx.doi.org/10.1142/S0218001402001903}, researchr = {https://researchr.org/publication/LinHC02}, cites = {0}, citedby = {0}, journal = {IJPRAI}, volume = {16}, number = {6}, pages = {697-714}, }