Archived posting to the Leica Users Group, 2001/01/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]JPEG is a compressed format. Uncompressing and recompressing will indeed change bits and pieces of your photograph. TIFF is a raw file format. RAW output is available on the new Canon PowerShot G1. Perhaps other consumer cameras as well but this one is the only one I know about. The RAW file from the G1 gives you an archive of the image that you can always go back to in order to start over with all of the photo data. Jim ps... Try www.peimag.com for good info At 02:00 PM 1/14/01 -0700, Dave Richards wrote: >The current thread concerning the archival storge of digital images brings >up another question: > >Which of the file formats currently available for the hobbyist (GIF, JPG, >TIFF, BMP, etc) offers the greatest image quality and color rendition with >the least loss of information? I am making an assumption that stored file >size isn't an issue, at least in regard to the answer to this question. > >For instance, I have been told that JPEG images, if uncompressed for >editing and then recompressed, will lose information, but I've also heard >that there is such a thing as a JPEG algorithm that doesn't lose >information when uncompressed/recompressed. > >I know practically nothing about this as you can probably guess, so any >information the members can provide will be helpful. Also, if anyone can >direct me to one or more web sites or documents that can provide me with >enlightenment I will be grateful. > >TIA > >Dave Richards >Littleton, Colorado, USA >dprichards@qwest.net >