Hi Dave: The instructions in my new Kodak digital camera say almost exactly what you said about saving originals in TIFF. I tried it, but boy, they are huge files!
John John L. Carmichael Jr. Sundial Sculptures 925 E. Foothills Dr. Tucson Arizona 85718 USA Tel: 520-696-1709 Email: [EMAIL PROTECTED] Website: <http://www.sundialsculptures.com> ----- Original Message ----- From: "Dave Bell" <[EMAIL PROTECTED]> To: "Jack Aubert" <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Saturday, March 08, 2003 10:22 AM Subject: Re: New Website > On Sat, 8 Mar 2003, Jack Aubert wrote: > > > At 09:46 AM 3/6/2003 -0700, you wrote: > > > > > > > >Do any of you have any format preference (GIF or JPEG) for websites? > > >Should we change the graphics to JPEGs? Also, do you think the popups are > > >user-friendly? > > > > The JPEG algorithm for rendering pictures is technically a > > "lossy" procedure in that when it compresses the picture it discards some > > information. > > > If you experiment with turning Gifs into smaller Jpegs you > > can judge the results yourself. > > > > The JPEG procedure falls short, however, when it comes to rendering things > > like drawings with sharp straight lines such as org charts and > > > > So the rule is: Use Jpegs for photos and use Gifs for diagrams. > > Another issue with JPEG that isn't widely recognized is that repeatedly > saving an image as JPEG, while retouching, color balancing, etc., results > in loss applied to loss. Eventually, the image quality degrades > significantly. It is suggested that you start with a lossless storage > system like TIFF, do all your editing in that mode, and only save to JPEG > for the final image. With most simple photo editing software, once you do > a Save As JPEG, the image in memory is a JPEG, from them on, so first save > the edited image as TIFF, Save As JPEG, check that for quality and color, > and if you need to edit it further, re-load the TIFF. JPEG also has a > feature that allows you to set the quality vs. compression level. You can > easily get a 10:1 ratio of file size, but will look closely at the result, > and you will see the image problems... > > Dave > 37.28N 121.97W > > - > -
