An Improved Reversible Watermarking Based on Pixel Value Ordering and Prediction Error Expansion. - Le Quang Hoa; Cao Thi Luyen; Nguyen Kim Sao; Pham Van At (ACIIDS (2), 2020)

Reversible Data Hiding Based on Prediction Error Histogram Shifting and Pixel-Based PVO. - Nguyen Kim Sao; Cao Thi Luyen; Le Kinh Tai; Pham Van At (ACIIDS (2), 2020)

Efficient reversible data hiding using block histogram shifting with invariant peak points. - Nguyen Kim Sao; Cao Thi Luyen; Pham Van At (J. Inf. Hiding Multim. Signal Process., 2022)

Reversible Data Hiding based on dual images adapts to the secret message. - Nguyen Kim Sao; Tran Xuan Thanh; Mai Thanh Hong (J. Inf. Hiding Multim. Signal Process., 2023)

Dual-image reversible data hiding method using maximum embedding ability of each pixel. - Cao Thi Luyen; Nguyen Kim Sao; At PhamVan (J. Inf. Secur. Appl., 2023)