Stereo Image Watermarking Using Random Least Significant Bit and Arnold Transform

Security of transferring data through channels has lots of concern especially if the transferred data is important. In stereo images, the scene is reconstructed from pair of images; the resulting is the 3D information which in some applications needs to be transferred through insecure channel. The security is important to protect the data from eavesdropping. We have proposed novel technique to secure the transferring of the 3D data by watermarking the stereo images. The watermark will be the 3D data. First the image will be scrambled by Arnold transform, then the 3D data (Watermark) will be embedded into the stereo images by Random Least Significant Bit watermarking. The watermark will be dispersed over the image. Results showed that our technique successfully protected the 3D when transferred through insecure channel.