Lossless Compression of Color Image by Implementing Hybrid Transformation of DWT, DKT and DCT

Abstract — Image compression is the method to decrease insignificance and redundancy of image data in order to store or transmit image in a competent form. The essential information is extracted by using different transform techniques such that it can be reconstructed without ruining quality and information of the image. The paper presents a peculiar Hybrid Wavelet Transform genesis technique for Image compression using two orthogonal transforms. The concept of hybrid wavelet transform is to combine the attributes of two or more different orthogonal transform wavelet to attain the vitality of multiple transform wavelet. Here approach is to generate hybrid wavelet transform using three orthogonal transform using together Discrete Cosine transform, Discrete Wavelet transform and Discrete Kekre Transform which all are lossy compression techniques. On several image simulation has been carried out. The result has shown that hybrid transform wavelet performance is best as compared to transform wavelets. Here the hybrid of DWT, DCT and DKT provides the best result amongst the individual mentioned transforms