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A comparison of the Hartley, Cas-Cas, Fourier, and discrete cosine transforms for image coding

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1 Author(s)
Perkins, M.G. ; Dept. of Electr. Eng., Stanford Univ., CA, USA

The coding method used for the comparison utilizes a marginal bit-allocation scheme and Lloyd-Max quantizer. Gamma, Laplacian, and Gaussian models are compared for the distribution of the transform coefficients. The discrete cosine transform outperforms the other three transforms based on the mean-square quantization error

Published in:

Communications, IEEE Transactions on  (Volume:36 ,  Issue: 6 )

Date of Publication:

Jun 1988

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