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- Xref: sparky comp.graphics:13713 alt.graphics.pixutils:2900 alt.binaries.pictures.d:6134
- Path: sparky!uunet!spool.mu.edu!olivea!tardis!jms
- From: jms@tardis.Tymnet.COM (Joe Smith)
- Newsgroups: comp.graphics,alt.graphics.pixutils,alt.binaries.pictures.d
- Subject: Re: Best way to scan in pictures? (Newbie question)
- Message-ID: <3309@tardis.Tymnet.COM>
- Date: 13 Jan 93 00:01:00 GMT
- References: <C0KI8n.57M@techbook.com> <1993Jan12.162010.9043@rz.uni-jena.de>
- Followup-To: comp.graphics
- Organization: BT Tymnet, San Jose, CA
- Lines: 48
-
- In article <1993Jan12.162010.9043@rz.uni-jena.de> pfk@rz.uni-jena.de (Frank Klemm) writes:
- >In article <C0KI8n.57M@techbook.com>, jamesd@techbook.com (James Deibele) writes:
- >: Here are my newbie questions which I hope somebody can answer so I can
- >: up the pose of "big brother the computer expert". :-)
- >: (1) What kind of scanner works best for scanning in photographs?
- >Normal "Flachbett-Scanner" like the HP Desk Scan III work very well.
-
- Or "flatbed scanner" as it is refered to in English.
-
- >: (4) I don't know anything about the Kodak CD cameras. Can someone
-
- "Photo CD" is not a camera. You take an everyday ordinary 35mm color
- negative in and they put the photos on the CD in 5 different resolutions.
-
- >: outline the good and bad points of these? I assume that it's possible
- >: to read these into a Mac or PC somehow, but that might be a wrong
- >: assumption ...
- >:
- >Pro:
- > CD as media is good
- > You can do digital processing from the pictures
- >Cons:
- > Only 100 pictures are supported (660 MB/ 3 MB each = 220 pictures ?????????)
- > Expensive 1.50 DM (ca. $1) per picture
- > Only 36mmx24mm
- > Only up to 3072x2048
- > Compression is ineffective (JPEG makes less than 1 MB, typical 800 kB)
- > Copyrighted - sources are not distributed
-
- For an NTSC television, the standard display for Photo CD is 768x480, which
- takes 1.10 megabytes if stored at 3 bytes per pixel. (768x512x3 for PAL is
- 1.18 megabytes.) The low-res picture is 384x240, the "4x" picture is
- 1536x960, and the "16x" picture is 3072x1920. The 5th image is a
- "thumbnail" sized picture that is used to build the hardcopy index, and it
- is 100x100 (or maybe 192x192, I forget which). Total size for all 5 images
- is 8 or 9 megabytes, which is Kodak's software compresses to about 4.5
- megabytes per picture.
-
- A print created from the "16x" image is supposed to be indistinguishable
- from a print created from the negative at a "1-hour" photo shop. It is said
- that at the highest resolution, the grain in the film shows up before you
- can see any of the artifacts of the compression algorithm. If this is so,
- than Kodak has a lossless compression for their application.
- --
- Joe Smith (408)922-6220 BTNA GNS Major Programs, TYMNET Global Network
- <jms@tardis.tymnet.com> P.O. Box 49019, MS-C51, San Jose, CA 95161-9019
- CA license plate: "POPJ P," Married to the LB, Quantum Leap's #1 net.fan
- PDP-10, 36-bits forever! Humorous disclaimer: "My Amiga 3000 speaks for me."
-