DeepAI AI Chat
Log In Sign Up

Reversible Data Hiding in Encrypted Images by Lossless Pixel Conversion

01/20/2022
by   Zi-Long Liu, et al.
0

Reversible data hiding in encrypted image (RDHEI) becomes a hot topic, and a lot of algorithms have been proposed to optimize this technology. However, these algorithms cannot achieve strong embedding capacity. Thus, in this paper, we propose an advanced RDHEI scheme based on lossless pixel conversion (LPC). Different from the previous RDHEI algorithms, LPC is inspired by the planar map coloring question, and it performs a dynamic image division process to divide the original image into irregular regions instead of regular blocks as in the previous RDHEI algorithms. In the process of LPC, pixel conversion is performed by region; that is, pixels in the same regions are converted to the same conversion values, which will occupy a smaller size, and then the available room can be reserved to accommodate additional data. LPC is a reversible process, so the original image can be losslessly recovered on the receiver side. Experimental results show that the embedding capacity of the proposed scheme outperforms the existing RDHEI algorithms.

READ FULL TEXT

page 2

page 4

page 5

page 9

page 10

11/05/2019

Reversible Data Hiding in Encrypted Images based on Pixel Prediction and Bit-plane Compression

Reversible data hiding in encrypted images (RDHEI) receives growing atte...
07/11/2019

Reversible Data Hiding in Encrypted Images using Local Difference of Neighboring Pixels

This paper presents a reversible data hiding in encrypted image (RDHEI),...
01/15/2018

Reversible Embedding to Covers Full of Boundaries

In reversible data embedding, to avoid overflow and underflow problem, b...
07/08/2020

Reversible Data Hiding in Encrypted Images Based on Bit plane Compression of Prediction Error

As a technology that can prevent the information of original image and a...
08/09/2021

A novel reversible data hiding in encrypted images based on polynomial arithmetic

Reversible data hiding in encrypted images is an eff ective technique fo...
05/14/2019

High Capacity Lossless Data Hiding in JPEG Bitstream Based on General VLC Mapping

JPEG is the most popular image format, which is widely used in our daily...
11/05/2022

High Capacity Reversible Data Hiding for Encrypted 3D Mesh Models Based on Topology

Reversible data hiding in encrypted domain(RDH-ED) can not only protect ...