  This paper attempts to improve the quality and the modification rate of a
Stego Image. The input image provided for estimating the quality of an image
and the modified rate is a bitmap image. The threshold value is used as a
parameter for selecting the high frequency pixels from the Cover Image. The
data embedding process are performed on the pixels that are found with the help
of Threshold value by using LSBMR. The quality of an image is estimated by the
value of PSNR and the modification rate of an image is estimated by the value
of MSE. The proposed approach achieves about 0.2 to 0.6 % of improvement in the
quality of an image and about 4 to 10 % of improvement in the modification rate
of an image compared to the edge detection techniques such as Sobel and Canny.
