Re: Scanning Documents and Photos - personal preferences #general

Bob Friedman


Why scan to jpg or png, both lossy formats, rather than tif, which is lossless? Every edit, including cropping, degrades the quality of jpg and png images, defeating the purpose of scanning at the highest resolution. 

I also use Irfanview and it works just as well for tif images as it does for jpgs.  Generally speaking, I scan at 300 dpi and faces usually come out fine in crops and enlargements.  If necessary, I re-scan at 400 or 600 dpi.  Eventually I find there is a point of diminishing returns, where higher resolutions create images that are marginally better and don't justify the ever larger file sizes.
Bob Friedman
Brooklyn, NY

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