#JPEG = on all Platforms?
6 messages in this thread
COuld someone tell me if JPEG is its own file format?
I know JPEG is a compression scheme, but is a JPEG file the same from
platform to platform like a .gif or .tif?
For example, if my client has a .TIF logo on his Macintosh, can he JPEG
it, give it to me, and then can I un-JPEG it (using ADPro) into a 24-bit
IFF for use in the Toaster?
<-SJK->
JPEG is a compression scheme. JFIF is a file format for 24 bit image which
uses JPEG as it's compression scheme. There is a group who have provided
JPEG/JFIF decoders/encoders for just about every major platform. (If you
browse on the keyword JPEG in our LIB 14, you should find the set for the
Amiga.) The two commercial Amiga packages I'm aware of which support JPEG,
do so via JFIF, and I'm relatively certain that if someone on another
machine creates a "JPEG" file, it will be JFIF compatible. There will be
some exceptions to this, but since JFIF seems to be setting the standard
here I expect most exceptions to fade away…
–>Steve Bennett
Steve,
Just to reassure you, I have downloaded many JPEG files from the Amiga forum
and displayed them on my PC clone. No problems.
-Mick
Do you use a public domain JPEG decoder? If so, could you tell me the
name? Thanks.
Leslie,
No, I don't use a public domain JPEG decoder. I use Image Alchemy, a
shareware program for PC compatables available in the GRAPHSUP library #4
under the name IMGALC.ZIP. It handles just about every file format there is.
There are some public domain programs. DJPEG, available
here in AMIGAART library #14, called OCT_JP.LHA. That's an Amiga program. For
PC's there's JPBIN2.ZIP in GRAPHSUP library #10. The public domain versions
have limited support for other file file formats.
Hope this helps.
-Mick
Thanks for the info. I run a BBS and I have been playing with the idea of
putting my graphic files on the board in JPEG format for viewing on
different computers. I would really like to make a PD converter avalible
for all computers.