A blog containing photographs, ideas, discussion and image manipulation tutorials from incurable hippie, a disabled photographer in the north of England. All this, plus inspiration from others' photographic work, and technical aspects of photography.

23 March 2009

Generation Loss, What JPEG Compression Looks Like After 600 Saves


Generation Loss from hadto on Vimeo.


We all know that JPGs are a 'lossy' file format, but watch this video, it is shocking! While we are unlikely to save and re-save a photo 600 times, it does make you wonder just how much damage we are doing to our .jpeg files each time we edit a bit and save.

If working in photoshop, saving in one of the Photoshop formats, e.g. .psd (a lossless format) is a way to save images at various points during the editing, before saving the final image as a .jpg if that is the format you need for the final photo.

(NB it's lucky that blog posts are lossless, the number of times I've posted and edited this entry!!)

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