Robust Color Image Watermarking Scheme with High Payload Capacity using FRT - SVD

When any color image transfers through an open-source communication channel, then the security of the color image is compromised against various manipulations. Therefore, the attacker has easily stolen any important color image when transferred from one place to another. For this problem, one of the solutions is digital watermarking, which provides security when data communicate through a channel. But most existing watermarking schemes can hide a small amount of owner identity into a color image to generate a secure watermarked color image. In this paper, a ridgelet transform and singular value decomposition-based watermarking scheme is proposed to tackle this problem, which provides higher payload capacity. Here, the color watermark logo is inserted into singular value of ridgelet coefficients of the color cover image to get the color watermarked image. After that, scrambling-based encryption is applied to it to get an encrypted color watermarked image that provides security before transmission. The experimental results of the proposed scheme show that this new scheme offers better payload capacity and performs better than existing color watermarking schemes.