PSNR and MSE based investigation of LSB

This paper provide the detail study of LSB Steganography method and analyzes the PSNR and MSE of LSB data hiding technique on the basis of different message sizes i.e 2KB, 4KB, 8KB in different 256*256 gray scale images in spatial domain. Also a investigation of 128*128 on 1KB and 2KB are given. The proposed LSB scheme takes the first LSB bit of the gray scale image and first message bit from the message matrix and embeds the message into the original image. After insertion of first message bit, pixel location of image and message is incremented by one. This process continuous itself till the message length is not equal to zero. After insertion of 2KB, 4KB and 8KB data in various gray images their PSNR and MSE is obtained and analyzed and it shows that the PSNR is more for the small message and less in case of large message size. The MSE is less for small message size and more in case of large data size. The main purpose of this study is that it will provide a platform for the beginners who want to study in the field of information hiding and image steganography.