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Re: filmscanners: Re: Scanning problems



In a message dated 2/5/2001 10:51:27 AM EST, michael@shaffer.net 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.

Regards,
Ed Hamrick




 




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