New image compression method combines best elements of both JPEG (based on Discrete Cosine Transform) and Principal Component Analysis

https://www.eurekalert.org/news-releases/1105842

"image operated on horizontally/ vertically using diagonal matrices, building image approximation layer by layer compressing into smaller data amount... faster computation, lighter processing, utilizing less storage... more precise control during compression, well-suited for parallel data processing, allows image buildup in stages upon decompression... DCT, powerful but inefficient, divides image into 64 parts for compression/ PCA, practical but labor-intensive, rigid... rigidity removed enabling algorithmic combination"