Kamaldeep Joshi and  Rajkumar Yadav and  Sachin Allwadhi,  Exploration of Least Significant Bit Based Watermarking and Its Robustness against Salt and Pepper Noise.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 115(7). 1400 - 1408
    [viewed 18 February 2020]. Available from: https://publications.waset.org/pdf/10005774.