Geometric distortion correction in images using proposed spy pixel and size

The performance of reversible watermarking is questionable due to their vulnerability to geometric attacks. Few methods are resistant to geometric distortions, most of them are vulnerable. Here we present proposed, hence forth we call it as spy pixel and size geometric distortion correction method. It improves robustness to geometric distortions. Geometric distortion correction, restores affected image to it´s approximate original. Extraction of watermark and image from restored watermark image becomes easy, rather in few cases it becomes completely reversible extraction. Experimental results have shown the effectiveness of proposed scheme. We have combined this method with existing popular watermarking and reversible methods which has given best results.