A literature survey on various watermarking techniques

Watermarking the image files has recently become the focus of much attention. The transmission rate of the data over internet has played the major challenge that allows the illegal proliferation of the digital images. The difficulties in image watermarking relies on the desire to preserve the file quality and also the damaging of the files need to be prevented. This review on the different watermarking techniques gives the clear concept of the watermarking scheme.