Performance improvement of hybrid image coding using lifting wavelet transform and contourlet decomposition

This paper proposes a method to improve the performance of hybrid image compression technique by combining lifting wavelet transform and contourlet decomposition. This proposed method takes advantage on each technique, the high compression ratio that can be provided by contourlet decomposition and the infinite peak-to-peak signal to-noise ratio (PSNR) that can be provided by lossless lifting transform. The experiment results show that with this hybrid method, we can get an infinite PSNR (no data losses) with higher compression ratio comparing to usual lossless and lossy methods. It is expected that this method is suitable for compressing aerial photographs in terms of image reconstruction quality, compression ratio and processing time. This improvement is considerably interesting because we can save the storage space and data transmission tune without any data losses.