Analysing Effect of Different Noise Attacks Using Quality Attributes with Specific Reference to Spatial Watermarking Method

In this paper we propose a method to hide colour watermark in the host image based on spatial domain technique. For the evaluation of Imperceptibility & Robustness of the proposed method we have calculated six different quality measure parameters. We have tested watermarked image against different noise attacks at different noise densities. The parameter so calculated gives the measure of perceptible quality of embedded & extracted images.