A High Capacity Watermarking Technique for the Printed Document

Round 1

Reviewer 1 Report

The authors present some new results about an efficient watermarking technology, the subject is timely.

The paper describes accurately the problem and the proposed method sounds suitable. The experimental results are sufficiently impressive.

This a my personal comments that must be used by the authors to address some considerations inn the conclusion of the paper and that could be faced for further studies by the same authors. Moreover the item I propose could be useful to increase the interest od the readers for an electronic journal.

A further idea fr watermarking should be related to the CNN two layers architectures that could be useful to generate masking patterns also in spatial dimension. The authors could have a reference in the following paper:

Self-organization in a two-layer CNN(Article)

That they must cite in the references. The idea that I propose for further studies is to use two layers CNN in discrete time for watermarking. This could be very appreciated by readers of the journal. Moreover actually it is sufficient to indicate this possibility.

Author Response

Thank you for reviewing my paper. Your suggestion is very appropriate and meaningful. I am very grateful for this！

Please see the attachment！

Author Response File: Author Response.pdf

Reviewer 2 Report

# Good work and well written. Yes, of course, typos exist as well.
# It can attract large audience. 
# Reference can be added (more and recent ones). The following could help.
https://link.springer.com/article/10.1007/s13042-018-0813-x

# Conclusion section needs to be focused (to the point).

Overall, the manuscript is in a good shape.

Author Response

Thank you for reviewing my paper. Your suggestion is very appropriate and meaningful. I am very grateful for this！

Please see the attachment！

Author Response File: Author Response.pdf