This is the jpeg decoder

Compile:

$ g++ main.cpp qdbmp.cpp

Assume that your output file is 'a.out'.

Usage:

./a.out jpeg_file

After executing a.out, we will get the file 'my_photo.bmp' which is the decoded photo.

Another way to compile:

Usage:

$ make

make for compile the decoder

$ ./my_jpeg jpeg_file

type the command above to decode the photo