Compression of medical images by quaternionic wavelet transform

Technological developments for several years have resulted in the handling (storing, exchanging or processing) of increasingly important data various fields and particularly medical field. In this works we present a new image compression / decompression algorithm based on quaternion wavelet transform (QWT). This is simple, fast efficient. It has been applied to images. The results obtained after are appreciated through parameter values CR, PSNR, MSE by visual observation. By these parameters, considered encouraging.