jstravis@athena.mit.edu (John S. Travis) (09/26/89)
I need a device-independent method for storing images at high resolution. Various formats i have heard of are DDIF(Digital document Interface Format) and X11. I asked this awhile ago and got little responnse. Is this the way to go, if i want to move images between different screens, devices(printers), and workstations. What exactly is the X11 format?(the output from xwd???) and is there a format that is considered the standard. Background: I have a program that will have map images and contour plots overlayed on them. I want then at the highest resolution both on the screen and when printed. Thanks for any help john ttavis jstravis@athena.mit.edu
dawson@apollo.HP.COM (Keith Dawson) (10/02/89)
In a recent article jstravis@athena.mit.edu (John S. Travis) writes: > I need a device-independent method for storing images at high resolution. > ... > Background: I have a program that will have map images and contour > plots overlayed on them. I want then at the highest resolution both > on the screen and when printed. Not device-independent (yet), but perhaps of interest to this newsgroup... A new company called EFI (Electronics for Imaging) was formed by some of the principals of Scitex, Adobe, et al.; they have announced a product that does on-the-fly compression/decompression of images. The method used (Adaptive Discrete Cosine Transform) can achieve compres- sions of 10x to about 50x. The user specifies a desired quality level, and the algorithm compresses an image by the maximum amount that will still preserve the requested quality. See the Seybold Report on Publishing Systems, Vol. 19 No. 1 (Sept. 11, 1989) for an introduction to the EFI technology, including four quite amazing pages of sample color images. EFI is at 950 Elm Ave., San Bruno, CA 94066 (415-742-3400). ____________________________________________________________ My opinions Keith Dawson Hewlett Packard Co. 508-256-0176 x5739 are my own. Graphics Technology Division / East 300 Apollo Dr. (CHR.03.DE) Chelmsford, MA 01824 USA My convictions Internet: dawson@apollo.hp.com are not for UUCP: {mit-eddie,yale,uw-beaver}!apollo!dawson public display.