scholarly journals Data Hiding Method for Color AMBTC Compressed Images Using Color Difference

2021 ◽  
Vol 11 (8) ◽  
pp. 3418
Author(s):  
Cheonshik Kim ◽  
Dongkyoo Shin ◽  
Chingnung Yang ◽  
Lu Leng
Keyword(s):  
Data Hiding ◽  
Copyright Protection ◽  
Color Image ◽  
Color Difference ◽  
Adjustment Process ◽  
Absolute Moment ◽  
Compressed Images ◽  
Secret Communication ◽  
Bit Plane

Image compression technology and copyright protection are certainly the important technologies for free exchange of multimedia. For compression of an image, we propose a color Absolute Moment Block Trucation Coding (AMBTC) method using a common bit-plane created by k-means. In addition, a data hiding method based on a color AMBTC using Optimal Pixel Adjustment Process (OPAP) was proposed for copyright protection and confidential secret communication. The number of quantization levels of the proposed color AMBTC is nine per block. Therefore, the edge of the compressed color image can be expressed more delicately. As a result of the simulation, it can be seen that the edge of the image of the color AMBTC is close to the original image. Moreover, the data hiding performance of the proposed method also obtained excellent results. For the experiment, we measured the quality of the image using the Color Difference (CD) we proposed, and the measurement result was very satisfactory.

scholarly journals Efficient Reversible Data Hiding Scheme for AMBTC-Compressed Images

2021 ◽  
Vol 11 (15) ◽  
pp. 6741
Author(s):  
Chia-Chen Lin ◽  
Thai-Son Nguyen ◽  
Chin-Chen Chang ◽  
Wen-Chi Chang
Keyword(s):  
Data Hiding ◽  
Free Space ◽  
Reversible Data Hiding ◽  
Secret Message ◽  
Embedding Capacity ◽  
Absolute Moment ◽  
Compressed Images ◽  
High Embedding Capacity ◽  
Significant Attention ◽  
Efficiency Rate

Reversible data hiding has attracted significant attention from researchers because it can extract an embedded secret message correctly and recover a cover image without distortion. In this paper, a novel, efficient reversible data hiding scheme is proposed for absolute moment block truncation code (AMBTC) compressed images. The proposed scheme is based on the high correlation of neighboring values in two mean tables of AMBTC-compressed images to further losslessly encode these values and create free space for containing a secret message. Experimental results demonstrated that the proposed scheme obtained a high embedding capacity and guaranteed the same PSNRs as the traditional AMBTC algorithm. In addition, the proposed scheme achieved a higher embedding capacity and higher efficiency rate than those of some previous schemes while maintaining an acceptable bit rate.

scholarly journals Data hiding using bit plane complexity segmentation steganography

2018 ◽  
Vol 7 (2.20) ◽  
pp. 33
Author(s):  
M Chandra Sekhar ◽  
S K. Chandini ◽  
V Sai Rohith ◽  
V Jhansi Lakshmi ◽  
M Pavan Kumar
Keyword(s):  
Data Hiding ◽  
Image Data ◽  
Limited Data ◽  
Information Measures ◽  
Bit Plane ◽  
Bit Planes ◽  
Human Attributes ◽  
Cover Up

Steganography is the basis of information covering the puzzle in some other data (we call it the ship), leaving no obvious evidence of data change. Most conventional steganographic strategies is limited data that hide the limit. They can cover up just 10% (or less) of the information measures of the vessel. This is on the grounds that the standard of those procedures was either to supplant an uncommon piece of the recurrence parts of the vessel picture, or to supplant all the slightest critical image bits with a secret multi-valued data. Our new Steganography uses the image as vessel information, and we enter the data in the bit-plane mystery vessel. This strategy makes use of human attributes, through which people cannot see the structure of any form of data exclusively damned pair, for example. We can replace most of the «Commotion like" regions in the bit-planes of the puzzle vessel image data without deteriorating the quality of the photos. We called our steganography "BPCS-steganography," which remains a Bit-Plane Complexity Segmentation steganography.  

scholarly journals Self-Embedding Fragile Watermarking Scheme to Detect Image Tampering Using AMBTC and OPAP Approaches

2021 ◽  
Vol 11 (3) ◽  
pp. 1146
Author(s):  
Cheonshik Kim ◽  
Ching-Nung Yang
Keyword(s):  
Cover Image ◽  
Perceptual Quality ◽  
Adjustment Process ◽  
Personal Privacy ◽  
Absolute Moment ◽  
Compression Performance ◽  
Image Tampering ◽  
Tampered Image ◽  
Watermarking Scheme

Research on self-embedding watermarks is being actively conducted to solve personal privacy and copyright problems by image attack. In this paper, we propose a self-embedded watermarking technique based on Absolute Moment Block Truncation Coding (AMBTC) for reconstructing tampered images by cropping attacks and forgery. AMBTC is suitable as a recovery bit (watermark) for the tampered image. This is because AMBTC has excellent compression performance and image quality. Moreover, to improve the quality of the marked image, the Optimal Pixel Adjustment Process (OPAP) method is used in the process of hiding AMBTC in the cover image. To find a damaged block in a marked image, the authentication data along with the watermark must be hidden in the block. We employ a checksum for authentication. The watermark is embedded in the pixels of the cover image using 3LSB and 2LSB, and the checksum is hidden in the LSB. Through the recovering procedure, it is possible to recover the original marked image from the tampered marked image. In addition, when the tampering ratio was 45%, the image (Lena) could be recovered at 36 dB. The proposed self-embedding method was verified through an experiment, and the result was the recovered image showed superior perceptual quality compared to the previous methods.

scholarly journals Effects of Single and Blended Coating Pigments on the Inkjet Image Quality of Dye Sublimation Transfer Printed Paper: SiO2, CaCO3, Talc, and Sericite

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
Chi-Ching Lin ◽  
Fu-Ling Chang ◽  
Yuan-Shing Perng ◽  
Shih-Tsung Yu
Keyword(s):  
Contact Angle ◽  
Image Quality ◽  
Color Image ◽  
Color Difference ◽  
Image Evaluation ◽  
Test Form ◽  
Coated Papers ◽  
Evaluation Test ◽  
Quality Ranking

In this study, we investigated the effects on the image quality of CaCO3, SiO2, talc, and sericite on coated inkjet paper. The papers serve as dye sublimation transfer paper for printing on fabrics. The brightness, smoothness, and contact angle of the coated papers were evaluated. The papers were then printed with a textile color image evaluation test form, and the imprinted images were evaluated with respect to six criteria of the solid ink density, tone value increase, print contrast, ink trapping, grayness, and hue error. The overall printed image quality was correlated with the smoothness and brightness of the coated paper but showed no correlation with the contact angle. For single-pigment-coated papers, CaCO3produced paper with the best color difference performance and could be substituted for silica. On the other hand, SiO2was found to be suitable for blending with talc, calcium carbonate, and sericite, and its combination with these materials generally produced better image qualities than silica alone. Talc and sericite, when blended with silica as composite coating pigments, produced better printed image qualities than those as single-pigment-coated papers. The overall image quality ranking suggests that the best performance was achieved with CaCO3-, SiO2/talc-, CaCO3/SiO2-, SiO2/sericite-, and SiO2-coated papers.

Wavelet bit-plane based data hiding for compressed images

2013 ◽  
Vol 67 (9) ◽  
pp. 808-815 ◽  
Author(s):  
Hsiu-Lien Yeh ◽  
Shu-Tsai Gue ◽  
Piyu Tsai ◽  
Wei-Kuan Shih
Keyword(s):  
Data Hiding ◽  
Compressed Images ◽  
Bit Plane
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