Results 21 to 30 of about 18,673 (292)
Mathematics, 2020 Due to the discreteness of integer data, there are a large number of gaps and continuous columns in the histogram based on integer data. Aiming at the characteristics, this paper presents a robust and reversible watermarking algorithm for a relational ...
Yan Li, Junwei Wang, Hongyong Jia
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Secure Reversible Data Hiding in Images Based on Linear Prediction and Bit-Plane Slicing
Mathematics, 2022 Reversible Data Hiding (RDH) should be secured as per requirements to protect content in open environments such as the cloud and internet. Integrity and undetectability of steganographic images are amongst the main concerns in any RDH scheme.
Maham Nasir +6 more
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Mathematics, 2022 Reversible data hiding (RDH) is a special class of steganography, in which the cover image can be perfectly recovered upon the extraction of the secret data. However, most image-based RDH schemes focus on improving capacity–distortion performance.
Hui Shi +4 more
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Reversible Data Hiding with a New Local Contrast Enhancement Approach
Mathematics, 2022 Reversible data hiding schemes hide information into a digital image and simultaneously increase its contrast. The improvements of the different approaches aim to increase the capacity, contrast, and quality of the image.
Eduardo Fragoso-Navarro +3 more
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Phase-shift extraction for phase-shifting interferometry by histogram of phase difference
Optics Express, 2010 We propose a non-iterative approach to extract the unknown phase shift in phase shifting interferometry without the assumption of equal distribution of measured phase in [0,2π]. According to the histogram of the phase difference between two adjacent frames, the phase shift can be accurately extracted by finding the bin of histogram with the highest ...
Jiancheng, Xu +4 more
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Content-Based Image Retrieval Using Shifted Histogram [PDF]
, 2007 This paper proposes the shifted histogram method (SHM), for histogram-based image retrieval based on the dominant colors in images. The histogram-based method is very suitable for color image retrieval because retrievals are unaffected by geometrical changes in images, such as translation and rotation.
Gi-Hyoung Yoo +2 more
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Computers, 2021 During medical treatment, personal privacy is involved and must be protected. Healthcare institutions have to keep medical images or health information secret unless they have permission from the data owner to disclose them.
Ching-Yu Yang, Ja-Ling Wu
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Reversible watermarking based on invariant image classification and dynamical error histogram shifting [PDF]
, 2011 International audienceIn this article, we present a novel reversible watermarking scheme. Its originality stands in identifying parts of the image that can be watermarked additively with the most adapted lossless modulation between: Pixel Histogram ...
Pan, Wei +10 more
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Improved DE-Based Reversible Watermarking Using Sorting and Histogram Shifting [PDF]
, 2010 In this paper, we present a revised reversible watermarking scheme based on the following techniques: difference expansion, sorting, and histogram shifting. The scheme emphasizes on low distortion with appointed capacity.
Yi Luo, Fei Peng, Luo, Yi, Peng, Fei
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A novel reversible data hiding scheme with two-dimensional histogram shifting mechanism [PDF]
, 2023 In this paper, we propose a novel reversible data hiding technique based on two-dimensional histogram shifting for quantized discrete cosine transformation coefficients (QDCT).
P H Vo (13539835) +3 more
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