reading a jpeg file byte by byte

hai everybody,
I am in image processing..
I need to access a jpeg image file and read the data in it
not as a whole, but byte by byte in integers.
And i also need to parse the file and edit the file
by sending the edited values back into the file.

i haven't found any attributes or functions in the <cffile>tag
for this purpose.

so, anyone please help me with some file handling techniques
to read and write to an image file byte by byte.

Can i use cold fusion for doing such low-level(core) programming on images?

please help me!!!

Thanking you in advance,

kishore.

Assuming you're using ColdFusion MX, you'll have to read in the file using the underlying Java API classes. There are file input stream readers as well as the Java Advanced Imaging API. That's where I'd look first. Since I've never had to do this I can't be more specific, but it is indeed possible.

hai,
yes, i am using coldfusion MX.
But i have no idea on using java API classes in cold fusion.
so, can you please tell me where to find the related documentation or u may send a sample example of using this java API classes in coldfusion MX.

thanks,
kishore