At 01:55 PM 5/12/02 -0400, Harold B. wrote the following:

>Fellow PCWorkers (I might need an Lview expert here),
>
>Sometimes if I download a series of JPG graphics, upon opening them (which 
>I have
>already configured to open with Lview) - for *some* of the JPG's I'll get the
>following message:
>
>"Unsupported SOF marker type Oxc2"
>
>Whereupon I then open it with IrfanView with no trouble. Then save it in 
>IrfanView.
>After that, Lview opens it up with no Oxc2 message. Good.
>
>My questions: What does that message mean and why does that happen?

SOF - Start Of Frame marker which is a two byte hexadecimal code, FFCx 
where x is a value from 0 to 3. The frame marker indicates the dimensions 
of the image (height and width). See

JNG (JPEG Network Graphics) Format Version 1.0
http://www.libpng.org/pub/mng/spec/jng.html

Reading JPEG image dimensions
http://mini.net/tcl/757.html

Probably a sleight "glitch" in the image file that LView has problems with 
and IrfanView does not.

--
Gerry Boyd
============= PCWorks Mailing List =================
Don't see your post? Check our posting guidelines &
make sure you've followed proper posting procedures,
http://pcworkers.com/rules.htm
Contact list owner <[EMAIL PROTECTED]>
Unsubscribing and other changes: http://pcworkers.com
=====================================================

Reply via email to