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Block Truncation Coding (BTC) has been considered as a highly efficient compression technique for decades. However, the annoying false contour caused by a low bit rate configuration is a key problem. Two recently proposed halftoning-based BTC, namely the Error-Diffused BTC (EDBTC) and the Ordered-Dither BTC (ODBTC), can significantly reduce the above issue. However, some defects such as blocking effect...
Block truncation coding (BTC) has been considered as an efficient compression technique for decades. However, the annoying blocking effect and false contour caused by low bit rate configuration are key problems. To solve these problems, many former halftoning-based BTCs are proposed. However, these schemes also induce another impulse noise issue while the previous issues still have room for improvement...
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