  This paper presents a robust and transparent scheme of watermarking that
exploits the human visual systems' sensitivity to frequency, along with local
image characteristics obtained from the spatial domain. The underlying idea is
generating a visual mask based on the visual systems' perception of image
content. This mask is used to embed a decimal sequence while keeping its
amplitude below the distortion sensitivity of the image pixel. We consider
texture, luminance, corner and the edge information in the image to generate a
mask that makes the addition of the watermark imperceptible to the human eye.
