An Efficient Image Compression Scheme Using Wavelet Transform with Set Partitioning Embedded Block Coder Algorithm (SPECK)
Keywords:
Image compression technique, wavelet transform, SPIHT algorithm SPECK Coding method, objective and subjective performance evaluation parametersAbstract
In this paper, the objective and subjective evaluation parameter generally used for image compression analysis has been presented. For the objective evaluation PSNR, CR, and variance have been discussed. These all metrics are simple to compute and shows the statistical properties of reconstructed data. However, in some cases, this parameter may not exactly define the visual reconstruction quality. Thus, subjective evaluation parameter has also been discussed for the reconstruction quality analysis. Under our present research work we observed that trade-offs can be achieved by adjusting the parameters for compressed image against reconstructed image quality over wide a range. Moreover, besides objective performance evaluation, subjective evaluation of an image/frame has also been conducted in order to have a visual perception.