Bob Sorry you are still wrong here. A JPEG file is a totally independent format from TIFF. JPEG was created by the Joint Photographic Experts Group (hence name). It is a method of compressing an image by analysing it in an 8x8 pixel grid and averaging the colour values. The more you compress the more you average, hence the clumping of pixels that you can get with huge compression.
A Tagged Image File Format (TIFF) was originally created by Aldus/Microsoft and HP way way back. It (at its most basic) a simple bitmap file. It has the ability to be compressed in various ways - LZW (run length encoding) ZIP - it has been extended numerous times and now supports Layers and more. But not JPEG. There is also JPEG 2000 which is able to support non-lossy compression (as previously mentioned), and EPS which supports a JPEG compressed preview. PICT file formats can also support JPEG. A JPEG can be converted to a TIFF but it will not improve it. A file in TIFF format can be opened in something like Photoshop and saved as a JPEG, but then you compress and lose depending on your setting. But I'm afraid they are not the same thing. cheers Richard -- www.method-photo.co.uk Quoting Bob Croxford <[EMAIL PROTECTED]>: >What I was trying to clarify is that a Jpeg does not exist > independently of a Tiff file. It is a Tiff file compressed. > > Bob Croxford =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
