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« on: Wednesday, December 09, 2009, 23:10:53 PM »
I was thinking a lossless format but now I'm thinking that these are pictures that were developed by someone and have aged, gotten dust on them and faded. I don't think a lossy format would hurt it that much. I know for most of the pictures I'll be scanning I will be also scanning the film negatives which I would carefully clean and use a lossless format on definitely.
I just scanned a regular photo at 2400 DPI and into PNG format and it came out just shy of 240MB which is gonna be unacceptable. I Googled and it seems a lot of people recommend at least 300 DPI so I did a second scan at 600 DPI and JPG format and it came out at about 1.5MB.
I want to do PNG but Windows Live Photo Gallery can't "autofix" in PNG format, only JPG I think. I know this isn't a "proper" thing to do but I do plan on keeping up to 4 versions of the same photograph (film negative, fixed film negative, developed scan, fixed developed scan) thus leaving me with absolute originals. These pictures were not taken by professionals with professional equipment, some are probably even disposable cameras so the quality, focus and coloring might not be great. There's also a pretty significant quantity and using Photoshop to fix the photos seems to be tedious and Windows Live Photo Gallery seems to do a pretty alright job with it's autofix.
I'm still in the trial phase, I haven't broken out the main pictures nor cleaned off the scanner but I do know that I will keep original scans un-modified and at least 600 DPI.