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Re: filmscanners: Re: Scanning problems
In a message dated 2/5/2001 10:51:27 AM EST, firstname.lastname@example.org writes:
> The only question which remains is if the service's JPEG compression
> also smoothed the data before compression.
The way to test this is to start with a tiff file from a well-focused
scanner (assuming a 24-bit tiff file is what the scanning service
offers). Then, take this 24-bit tiff file and produce a jpeg file
at approximately 7:1 compression. The comparison is then
between the original tiff file and the jpeg file.
Taking a jpeg file and producing a tiff file from it isn't useful.