Multiple Image Watermarking with Discrete Cosine Transform

Multiple image watermarking is an advanced concept of singular techniques. The existing digital techniques cannot obtain all the design goals, such as imperceptibility, robustness, security, and capacity simultaneously with perfection. Hence, multiple technique designed that embeds several watermarks into same host for conveying information. This paper proposed a Discrete Cosine Transform (DCT) ensuring low computational time embedding, encryption, decryption well extraction watermark images. Here, DCT used to ensure visual quality image, random binary matrix improve security image. We have given basic framework watermarking. Our experimental results show satisfactory performance.