Abstract:
This paper presents two methods for improving
the quality of Dot Diffused Block Truncation Coding (DDBTC)
decoded image. The first method exploits the usability and
effectiveness of decimated Discrete Wavelet Transform and
stationary Wavelet Transform for reducing the half-toning
artifact. While, the second method employs the Vector
Quantization (VQ) approach for performing the image patch
replacement and suppressing the unpleasant artifact of DDBTC
decoded image. As documented in Experimental Section, these
two methods performs well for improving the quality of DDBTC
decoded image.
