I need Code in C/C++ for converting JPEG and BMP file formats to "Binary PGM" file format,..
I really appreciate some who help me.

http://netpbm.sourceforge.net/

Regards,

Dave

is there any easy way to convert so many jpg files to pgm (with code or whitout! like software)???

Since you posted this on the Graphics forum instead one of the programming forums, I probably shouldn't have responded with that link. In particular, without knowing your programming environment (what Operating System, what compiler, etc.), I should add that it may not be easy (or even possible) to build the netpbm applications without installing some other stuff (like GNU/cygwin if you are developing on a Microsoft Windows platform).

However...

Your first post asked for code. (It didn't say anything about easy.) The netpbm package includes source code in C for jpegtopnm, which can convert a jpeg file to a pgm file, and the netpbm package has oodles of other graphics conversion and manipulation applications. See Footnote.

If you want a program, pre-packaged and ready to run, there are oodles of them too, but since I haven't used any of them, I won't mention any names. Maybe someone who has actually used one of them will respond.

Regards,

Dave
Footnote: "Oodles" means more than 100 in my personal lexicon.

At last count netbpm had over 200, so maybe I should have said "oodles++"

As far as commercial, shareware, and freeware programs known to my favorite search engine, the quantity approaches a googol.