Abstract
To solve the problems of noise, detail loss and poor contrast in the successive mean quantization transform (SMQT), a new SMQT algorithm based on Otsu algorithm is proposed. In this algorithm, we integrate the optimal threshold selected by the Otsu algorithm into the SMQT algorithm, then obtain the successive mean quantization of the binary tree. By this algorithm, an enhanced image is output with a higher quality. From both subjective visual effect and objective quality evaluation, the experimental results show that the improved algorithm reduces noise, improves contrast and makes the image details more clear.
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