Dear Researchers,
I am novel researcher of image processing. I am researching and developing new digital image watermarking method. For evaluation of this research, I need to compare the original image and watermarked image. Then I have to calculate degradation or information loss of watermarked image (after watermark embedding process). I need to know how this evaluation done and what are the tools I can use to this evaluation?
Thanks and Best Regards,
You can use mean square error (MSE) and structural similarity index metric (SSIM) to evaluate your algorithm.
You can use Peak- signal-to noise ratio (PSNR) which measures the qquality reconstruction of lossy compression codecs. The PSNR can be easy computed using mean square error (MSE).
you can use PSNR as well as structural similarity index metric (SSIM)
for more information you can read my thesis titled as:
Digital Watermarking of Images towards Content Protection
I used 7 different metrics in "Cross format embedding of metadata in images using QR codes." Intelligent Interactive Multimedia Systems and Services. Springer Berlin Heidelberg, 2011. 113-121.
http://web.imis.athena-innovation.gr/~azigomit/publications/2011ImgQR.pdf
you can use PSNR and structural similarity index metric (SSIM) to evaluate your algorithm.
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