TY - JOUR AU - Jing-Ming Guo AU - Ming-Feng Wu BT - IEEE Transactions on Image Processing DA - Jan. 2009 IS - 1 LA - eng PY - 2009 T2 - IEEE Transactions on Image Processing TI - Improved Block Truncation Coding Based on the Void-and-Cluster Dithering Approach VL - 8 ER -