An Adaptive Two-Stage Edge Detection Scheme for Digital Color Images. - Piyu Tsai; Chin-Chen Chang 001; Yu-Chen Hu (Real Time Imaging, 2002)

Using set partitioning in hierarchical trees to authenticate digital images. - Piyu Tsai; Yu-Chen Hu; Chin-Chen Chang 001 (Signal Process. Image Commun., 2003)

An Adaptive Steganography for Index-Based Images Using Codeword Grouping. - Chin-Chen Chang 001; Piyu Tsai; Min-Hui Lin 001 (PCM (3), 2004)

An Adaptive Steganographic Scheme for Color Images. - Chin-Chen Chang 001; Piyu Tsai; Min-Hui Lin 001 (Fundam. Informaticae, 2004)

A color image watermarking scheme based on color quantization. - Piyu Tsai; Yu-Chen Hu; Chin-Chen Chang 001 (Signal Process., 2004)

A progressive secret reveal system based on SPIHT image transmission. - Piyu Tsai; Yu-Chen Hu; Chin-Chen Chang 001 (Signal Process. Image Commun., 2004)

SVD-based digital image watermarking scheme. - Chin-Chen Chang 001; Piyu Tsai; Chia-Chen Lin 001 (Pattern Recognit. Lett., 2005)

Statistical Behavior Analysis of Smoothing Methods for Language Models of Mandarin Data Sets. - Ming-Shing Yu; Feng-Long Huang; Piyu Tsai (AIRS, 2006)

Codebook Partition Based Steganography without Member Restriction. - Yung-Kuei Chiang; Piyu Tsai; Feng-Long Huang (Fundam. Informaticae, 2008)

New Bit Reduction of Vector Quantization Using Block Prediction and Relative Addressing. - Yu-Chen Hu; Piyu Tsai; Chun-Chi Lo (Fundam. Informaticae, 2008)

Fast VQ Codebook Generation Method Using Codeword Stability Check and Finite State Concept. - Piyu Tsai; Yu-Chen Hu; Hsiu-Lien Yeh (Fundam. Informaticae, 2008)

Steganography using overlapping codebook partition. - Yung-Kuei Chiang; Piyu Tsai (Signal Process., 2008)

Palette Partition Based Data Hiding for Color Images. - Yu-Chiang Li; Piyu Tsai; Chih-Hung Lin; Hsiu-Lien Yeh; Chien-Ting Huang (IIH-MSP, 2009)

Reversible image hiding scheme using predictive coding and histogram shifting. - Piyu Tsai; Yu-Chen Hu; Hsiu-Lien Yeh (Signal Process., 2009)

Tree Structure Based Data Hiding for Progressive Transmission Images. - Piyu Tsai (Fundam. Informaticae, 2010)

Adaptive data hiding for vector quantization images based on overlapping codeword clustering. - Yen-Shing Tsai; Piyu Tsai (Inf. Sci., 2011)

Reversible video data hiding using neighbouring similarity. - Hsiu-Lien Yeh; Shu-Tsai Gue; Piyu Tsai; Wei-Kuan Shih (IET Signal Process., 2014)