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New bit rate reduction techniques for block truncation coding

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2 Author(s)
Ramana Rao, Y.V. ; Indian Telephone Ind., Bangalore, India ; Eswaran, C.

Two simple and fast block truncation coding algorithms which require reduced bit rates are presented in this paper. The proposed algorithms are compared with the modified block truncation coding technique (MBTC) with regard to the mean square error (MSE), bit rates and subjective quality of the reconstructed images. It is found that the results obtained with the proposed algorithms at reduced bit rates are comparable to those obtained with the MBTC. Further, it is shown that one of the proposed algorithms yields results which are comparable to those achieved with more complex hybrid algorithms

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Communications, IEEE Transactions on  (Volume:44 ,  Issue: 10 )