>If it proceeds to chuck away information after getting that instruction, it is >not a clever file format for photographic use
Mike, jpeg, by definition is a compression program. No matter what the setting, when utilized, it will by definition toss out some info. Kenneth Waller -----Original Message----- From: mike wilson <[EMAIL PROTECTED]> Subject: Re: Re: RAW v JPEG > > From: "Shel Belinkoff" <[EMAIL PROTECTED]> > Date: 2005/06/14 Tue PM 02:00:21 GMT > To: [email protected] > Subject: Re: RAW v JPEG > > Each save was made at the highest resolution and least compression possible. > > Shel In which case, there is no sensible logic to it. If you tell the programme to save the file at the biggest possible size, the logical thing, to me, would be for it to save everything. If it proceeds to chuck away information after getting that instruction, it is not a clever file format for photographic use. > > > > [Original Message] > > From: mike wilson > > > Shel Belinkoff wrote: > > > > > Well, I didn't change a thing, just opened and saved the file. I just > did > > > it again to be sure and every time the file was saved there was a loss > of > > > the number of "unique" colors and the file size changed: > > > > > > http://home.earthlink.net/~pdml-pics/jpgloss.jpg > > > > > > Shel > > > > Unless you choose the biggest file size option for the resave, my > > understanding is that jpeg will always chuck away what _it_ thinks is > > uneccessary. > > > > mike > > > > > > > > > > > > > >>[Original Message] > > >>From: Rob Studdert > > > > > > > > >>I have no doubt about the validity of your observations however if a jpg > > > > > > image > > > > > >>hasn't been transformed in any way it should be saved without loss of > > >>colour/detail. A transformation could also take the form of rendering an > > > > > > image > > > > > >>to an alternate colour space. > > > > > > > > > > > > > > > > > > ----------------------------------------- Email provided by http://www.ntlhome.com/ ________________________________________ PeoplePC Online A better way to Internet http://www.peoplepc.com
