Image compression using sub-resolution images

摘要

Methods, systems, and articles of manufacture for image compression and decompression using sub-resolution images are disclosed. Compressing of images includes, determining a plurality of entropy code sets based upon statistically similar regions in the input image, generating one or more sub-resolution images including a first sub-resolution image comprising the plurality of entropy code sets, encoding the input image using the generated one or more sub-resolution images to control one or more compression parameters including an entropy code, and outputting the encoded input image and the generated one or more sub-resolution images as a compressed entropy coded image file. Decompressing of images include, decomposing an image file to access the encoded compressed input image and respective sub-resolution images for each of a plurality of compression parameters, and decoding the encoded compressed input image using the respective sub-resolution images to control each of the plurality of compression parameters.

主权项

1. A method for compressing an input image of a scene that includes an object, comprising:
generating, using one or more processors, from the input image, respective sub-resolution images for each of a plurality of compression parameters, wherein each pixel in each of the respective sub-resolution images encodes a compression parameter from the plurality of compression parameters, the compression parameter encoding a set of pixels in the input image; encoding, using the one or more processors, the input image using the respective sub-resolution images to control each of the plurality of compression parameters; and outputting, using the one or more processors, the encoded input image and the generated sub-resolution images as a compressed entropy coded image file.