JPEG Format
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
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.
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.
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
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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