embed secret information to image
dependency: opencv 3.1
If want to run it simply, you can directly run Embed2Img.exe.
usage:
WARNING: ${} can be repalced, but file type don't change.
encrpt: -e ${input_file_name}.bmp ${mask_file_name}.bmp ${output_file_name}.png
decrypt: -d ${secret_file_name}.png ${mask_file_name}.png
NOTE：
This executable file should be run in command. Don't double click it! Only proper parameters can run it.