Results 11 to 20 of about 700,760 (282)
Hybrid Algorithm to Improve Robustness of Image Watermarking [PDF]
Engineering and Technology Journal, 2015 Watermarking is the process of embedding digital information into any multimedia data such as an image, audio or video file in such a way that intruder cannot be able to trace the signal to protect copyright of intellectual property of the owners.
Ammar Fakhri Mahdi
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Edge Detection Operators: Peak Signal to Noise Ratio Based Comparison [PDF]
International Journal of Image, Graphics and Signal Processing, 2014 Edge detection is the vital task in digital image processing. It makes the image segmentation and pattern recognition more comfort. It also helps for object detection. There are many edge detectors available for pre-processing in computer vision. But, Canny, Sobel, Laplacian of Gaussian (LoG), Robert's and Prewitt are most applied algorithms.
D. Poobathy, R. Manicka Chezian
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An Adaptive Non-linear Statistical Salt-and-Pepper Noise Removal Algorithm using Interquartile Range
ELCVIA Electronic Letters on Computer Vision and Image Analysis, 2019 This paper presents a salt-and-pepper noise removal scheme using modified mean filter. The proposed method is based on a simple basic concepts of mean filter, where each mean value is calculated from the mathematical formula of interquartile range (IQR)
Amiya Halder
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Blind Estimation of Peak Signal to Noise Ratio for JPEG Highly Compressed Images Based on Correlation [PDF]
Jisuanji gongcheng, 2017 Quantization noise is one of thedominant distortions of JPEG image compression,so its amplitude usually needs to be estimated for image quality assessment.Meanwhile,Peak Signal to Noise Ratio(PSNR) estimation method cannot get the original image in the ...
LU Minjun,WANG Ci
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A Two-Dimensional Signal Space for Intensity-Modulated Channels [PDF]
, 2012 A two-dimensional signal space for intensity- modulated channels is presented. Modulation formats using this signal space are designed to maximize the minimum distance between signal points while satisfying average and peak power constraints. The uncoded,
Agrell, Erik +3 more
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PSNR Improvement using Different Prediction Coding in Image Compression
Tikrit Journal of Engineering Sciences, 2010 Differential Pulse Code Modulation (DPCM) is one of the predictive coding techniques. The number of previous pixels employed in the estimate operation is referred to as the order of the predictor. Predictor using one pixel for estimation is called “first
Khamies K. Hasan
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IEEE Photonics Journal, 2020 Among imaging examinations, mammography noninvasively aids in the early detection and diagnosis of diseases inside the body, such as lung cancer or breast tumor, for first-line examination and helps physicians to treat medical conditions.
Pi-Yun Chen +5 more
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Secured Gray-Code-Based Steganographic Technique in Geometrical-Based Domain
IEEE Access, 2023 The past decades witness a tremendous exchange in data and information in almost all domains. This leads to the need for applying data security to ensure information safety during communication.
Aya Y. Alkhamese +6 more
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Cellular automata-based approach for salt-and-pepper noise filtration
Journal of King Saud University: Computer and Information Sciences, 2022 Application of cellular automata (CA) to digital image processing has achieved considerable attention in last several years. CA are now employed in noise filtration of digital images; particularly many CA-based impulse noise filters have been proposed ...
Zubair Jeelani, Fasel Qadir
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Improved Watermarking Scheme Using Decimal Sequences [PDF]
, 2005 This paper presents watermarking algorithms using d-sequences so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal
Shaik, Ashfaq N
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