A Survey on Filtered Watermarking Embedding & Extraction in Bit Planes

Now a days the image authentication through watermarking is going in many different techniques. One of the newest method is filtered watermarking. The filtered watermarking is a secured watermarking technique. Depending upon the type of filter used during the watermarking process, the overall watermarked images results will be changed. Actually the target information is present in the edges of the watermark image in filtered watermarking process. The watermark image is hidden into another cover image(original image). The extraction of target information by using various edge detecting filters produce various results. In this paper we discussed our survey results on watermark embedding and extraction in bit planes using different filters and also the embedding of the filtered watermark in various order bit planes.