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检索条件"主题词=transform coding"
10293 条 记 录,以下是4771-4780 订阅
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Evaluation of floating point image compression
Evaluation of floating point image compression
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International Workshop on Quality of Multimedia Experience, QoMEx
作者: Thomas Richter RUS Computing Center University of Stuttgart Stuttgart Germany
Recently, compression of high dynamic range (HDR) photography gained attention in the standardization of the Microsoft HDPhoto compression scheme as JPEG-XR. While integer data of 16 bits/pixel (bpp) in scRGB color-sp... 详细信息
来源: 评论
Image Hashing Algorithm via Iterative Scale Interaction Geometric Model
Image Hashing Algorithm via Iterative Scale Interaction Geom...
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Congress on Image and Signal Processing, CISP
作者: YuanYuan Hu XiaMu Niu Hui Zhang Information Security Technique Research Center Harbin Institute of Technology Shenzhen China
Directional content-preserving features are extracted instead of the global ones. It first detects the initial curvature feature points based on the scale interaction model using Gabor filters with various scales in d... 详细信息
来源: 评论
On the use of color appearance modeling for efficient compressed-domain image enhancement
On the use of color appearance modeling for efficient compre...
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IEEE International Conference on Image Processing
作者: Maria Chatzigiorgaki Athanassios N. Skodras School of Science and Technology Hellenic Open University Patras Greece
In this paper we propose a compressed-domain image enhancement algorithm based on color appearance modeling. We aim at providing an efficient high-quality JPEG color image enhancement algorithm, in terms of color boos... 详细信息
来源: 评论
Semi-Fragile Watermark Based on Adaptive Quantization for Image Content Authentication
Semi-Fragile Watermark Based on Adaptive Quantization for Im...
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International Conference on E-Business and Information System Security, EBISS
作者: Cong Jin Yan Chao Xiao-Liang Zhang Department of Computer Science Central China Normal University Wuhan China
A novel semi-fragile watermark scheme for image authentication is proposed in this paper. New scheme extracts the image content features from the low frequency domain to generate watermarks, inserts obtained feature i... 详细信息
来源: 评论
Anti-Geometrical Attacks Image Watermarking Scheme Based on Template Watermark
Anti-Geometrical Attacks Image Watermarking Scheme Based on ...
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IEEE International Symposium on Computer Network and Multimedia Technology, CNMT
作者: Rong-sheng Xie Ming Zhou Cui-lan Huang Yuan-min Li Department of computer science and technology Xiamen University of Technology Xiamen Fujian China
This paper proposes a novel anti-geometrical attacks digital image watermarking scheme. In the scheme, a kind of template watermark is proposed, and we embed template watermark as well as robust watermark into images.... 详细信息
来源: 评论
A novel approach using transformation techniques and decision tree algorithm on images for performing Digital Watermarking
A novel approach using transformation techniques and decisio...
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International Conference for Internet Technology and Secured Transactions (ICITST)
作者: Samir B. Patel Tejas B. Mehta Shrikant N. Pradhan Computer Science and Engineering Department Normal University of Science and Technology Ahmedabad Gujarat India
Digital Watermarking is an emerging copyright protection technology. The paper presents a new robust watermarking technique based on combining the power of transform domain technique, the Discrete Cosine transform (DC... 详细信息
来源: 评论
Eigenphases for corrupted face images
Eigenphases for corrupted face images
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International Conference on Advances in Computational Tools for Engineering Applications, ACTEA
作者: Naser Zaeri Electrical Engineering Department Kuwait University Safat Kuwait
Corrupted face image is one of the important obstacles that machine vision systems encounter when trying to recognize faces. In this paper, we propose a new face recognition system that can deal with the problem of co... 详细信息
来源: 评论
Image Compression Based on Truncated HOSVD
Image Compression Based on Truncated HOSVD
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International Conference on Information Engineering and Computer Science (ICIECS)
作者: Chang Liu Jiliu Zhou Kun He School of Computer Science Sichuan University Chengdu China
The paper presents a novel image compression technique. Inspired by High Order Singular Value Decomposition (HOSVD), the technique respects each image both gray image and color image as a high order tensor and discard... 详细信息
来源: 评论
An adaptive steganographic technique based on integer wavelet transform
An adaptive steganographic technique based on integer wavele...
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International Conference on Networking and Media Convergence, ICNM
作者: R. O. El Safy H. H. Zayed A. El Dessouki Faculty of Engineering Benha University Egypt Faculty of Computers Benha University Egypt Remote Sensing and Space Sciences
Steganography gained importance in the past few years due to the increasing need for providing secrecy in an open environment like the internet. With almost anyone can observe the communicated data all around, stegano... 详细信息
来源: 评论
A Semi-fragile Image Watermarking Resisting to JPEG Compression
A Semi-fragile Image Watermarking Resisting to JPEG Compress...
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International Conference on Management of e-Commerce and e-Government, ICMECG
作者: Xiangqing Wang Jun Wang Hong Peng School of Electrical Information Engineering Xihua University Chengdu China
Semi-fragile watermark has attracted attention due to its important role in content authentication for multimedia. In order to distinguish malicious tampering from incidental attacks, semi-fragile watermark must be ro... 详细信息
来源: 评论