Patent ID: 6970265

Claim:
An image processing device, suitable for displaying a static digital image on an image display device, comprising: a compressing device used to compress the static digital image using a wavelet transform to produce a first compressed image data file; a memory device used to store the compressed image data file; a processing device used to calculate and compare the storage space left in the memory device, the storage space used in the memory device and the size of the first compressed image data file, when the storage space left in the memory device is less than the size of the first compressed image data file, part of the compressed image data files stored in the memory device is eliminated to store the first compressed image data file, otherwise the first compressed image data file is directly stored in the memory device, wherein the size of the eliminated part of the image data files is equally divided among the compressed image data files stored in the memory device; and a decompressing device used to decompress the first compressed image data file to produce image data file, and display it on the image display device.