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Vlion

JPEG Format

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Hey ! I`m writing a program to extract data from a JPG file. I cant find a coherent format spec that gives the data I want, namly, How do I get the dimensions of the image ? I`ve hex edited a bunch of different files and it is not giving me any data whatsoever. Any links, help, ideas here ?(Yes, I tried Wotsit.org) ~V''lion I came, I saw, I got programmers block. ~V''''lion

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Guest Anonymous Poster
try intel''s library for jpeg handling

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Here''s a link to a very good JPEG library. Easy to use and it''s already written for you:
ftp://ftp.uu.net/.vol/1/graphics/jpeg/

It''s actually by the Independent JPEG Group. Since they invented the format, they probably know what they are doing.

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Urrg.
The docs are fairly hideous...they rely on the reader to know what they are talking about.
However: I havnt been able to find a JPG header block in the specs that defines basic characteristics like size, dimensions, color number, etc...
Ach. I`ll keep searching...
~V''lion

I came, I saw, I got programmers block.
~V''''lion

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