PNG_stego-test

This is just a PNG LSB Steganography test.

[+] Fix some build error of it

Reference：

http://www.codeproject.com/Articles/581298/PNG-Image-Steganography-with-libpng

Auther:

Grant Curell

Details：

https://3gstudent.github.io/3gstudent.github.io/%E9%9A%90%E5%86%99%E6%8A%80%E5%B7%A7-PNG%E6%96%87%E4%BB%B6%E4%B8%AD%E7%9A%84LSB%E9%9A%90%E5%86%99/