March 24, 2009
Saved your wedding photos in JPEG? Think again
Generation Loss from hadto on Vimeo.
Not many people know this but the .jpg extension for digital image files is actually not so different from duplicating VHS cassettes from yester year. The JPEG format is a lossy compression method, which removes information from the image. Take a look at what saving the same file over 600 times does to an image of a clear blue sky. Clearly that’s why its not used in astronomical or medical imaging or other purposes where the exact reproduction of the data is required. A lossless formats such as PNG is recommended for these and other cases.