Abstract: Owing to the massive developments in the field of photography, photos are something very common these days. With the fast development and prevailing use of handheld cameras, cost as well as required photography skills is much lower than before. This has created a significant problem of storage for personal devices and cloud platforms. Image compression involves reducing the number of bits needed for representing an image, and lossless compression in particular is employed when we need to get the original image reconstructed perfectly from the compressed image. In this paper, a study of different methods used for compressing JPEG image sets is carried out.
Keywords: Image compression, lossy, lossless, JPEG, recompression, image set, image collection, image coding.