opening jpg file in C++

legolas · 18-01-2007, 07:52 PM

Hi guys,

can any1 show me how to open a jpg file for processing in C++?? I am sick of searching it online!!

/legolas

rahul_becks23 · 18-01-2007, 08:02 PM

well , u can process an image file in photoshop , never heard about c++.......i think c++ opens codes (i.e. plain text) .

legolas · 18-01-2007, 08:11 PM

I wanted to open the jpg file and process with the information in my code. I wanted to perform the fft of an image. for that i have to open the image and get the data on an array and then i have to start getting the fft. hope u understand now.

/legolas

rahul_becks23 · 18-01-2007, 08:15 PM

well, then........do this.....
Run ur compiler........
and drag the image file into the compiler.

legolas · 18-01-2007, 08:19 PM

I am reporting your reply to the moderators. It seems you dont know what is C++ from the way you answered and you are just replying with bogus replies.

Please reply usefully and only if you know.

thks a lot,
/legolas.

Lucky_star · 18-01-2007, 08:19 PM

Search for this header file in google: jpeglib.h
You can get it easily from the Independent Jpeg Group.
Check for the documentation on what decompression functions are available in the above said file.

legolas · 18-01-2007, 08:22 PM

hi lucky_star,

I have opened jpeg files before in C. I just dont remember them. And i dont recollect using any special headers for opening the files. Its just the parameters that i am not able to recollect while using the fopen function.

thks,
legolas.

Lucky_star · 18-01-2007, 08:25 PM

Ok, I will check that and will reply to you soon....

Pragadheesh · 18-01-2007, 10:09 PM

hope these links 'll help u...

http://cimg.sourceforge.net/referenc..._tutorial.html

http://cimg.sourceforge.net/

bharathraj77 · 27-01-2007, 08:33 PM

CAN ANY ONE TELL ME how to open a file in C. ( file is more than 8.3 format)

I am using win Xp and in C it is opening only files having 8.3 format.

what changes i have to make so that it will take long file names...