Here is a simple RAW file with open sky and save it as a 16-bit TIFF. Now convert that file to 8-bit and compress it using the various levels. Then, reopen each file and increase the contrast in the sky. That should separate the apples from the oranges.
Cheers, Bob ----- Original Message ----- From: "Adam Maas" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Friday, June 16, 2006 1:53 PM Subject: Re: Where Do All the Pixels Come From > keith_w wrote: > >>Paul Stenquist wrote: >> >> >>>Jpeg is a compressed file. Tiff is an uncompressed file. When you open >>>a jpeg in PhotoShop, the software decompresses the file, restoring it >>>to original size. >>> >>> >> >>Perhaps you'll pardon my ignorance, but, how does the software know what >>to >>add back, and where to put it? >> >>keith >> >> >> > It's got a formula which tells it based on the info still in the file, > said formula is the basis of the JPEG algorithm. > > -Adam > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
