High-Quality Fast Compression Algorithm Based on Fractal-Wavelet

As requirements for the spatial and temporal resolution of remote sensing images for Earth observations increase, the image data has exploded. However, a large amount of remote sensing image data requires a huge channel capacity for transmission. In order to improve the transmission efficiency, the images need to be compressed before transmission. Traditional fractal coding compression technology can greatly reduce the size of image files, but its blocking effect will blur the important texture information of remote sensing images. In addition, the extremely long fratal compression time makes it unsuitable for image transmission. To solve these problems, we propose a fast fractal coding method based on wavelet transform. This method can not only greatly increase the fractal coding speed, but also make the compressed image clear enough to retain texture information.