A colour image compression scheme based on two-layer absolute moment blocktruncation coding

In this paper, a new approach for colour image compression is proposed whic h involves the absolute moment block truncation coding (AMBTC) and the sing le bitmap generation scheme. The first-layer AMBTC encodes a colour image a nd then comes up with three bitmaps and six quantization level arrays. Then , the single bitmap generation scheme combines the three bitmaps into one. After that, the second-layer AMBTC encodes six quantization arrays. The exp erimental results show that our method can obtain satisfactory results when the colour image has a monotonous hue.