Results 11 to 20 of about 189,515 (155)

Edge Detection Operators: Peak Signal to Noise Ratio Based Comparison [PDF]

open access: yesInternational 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
openaire   +1 more source

MACHINE LEARNING METHODS UTILIZING MAMMOGRAM IMAGE ENHANCEMENT OF BREAST CANCER IDENTIFICATION [PDF]

open access: yesICTACT Journal on Soft Computing
Medical image analysis is very essential for health care sectors with early identification of illness, advanced features as very effective diagnostics system.
V. Jeevitha, I. Laurence Aroquiaraj
doaj   +1 more source

An Adaptive Non-linear Statistical Salt-and-Pepper Noise Removal Algorithm using Interquartile Range

open access: yesELCVIA 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
doaj   +1 more source

Blind Estimation of Peak Signal to Noise Ratio for JPEG Highly Compressed Images Based on Correlation [PDF]

open access: yesJisuanji 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
doaj   +1 more source

Secured Gray-Code-Based Steganographic Technique in Geometrical-Based Domain

open access: yesIEEE 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
doaj   +1 more source

Anti-PT-Symmetric Optical Gyroscope at the Transmission Peak Degeneracy With Enhanced Signal-to-Noise Ratio

open access: yesJournal of Lightwave Technology
Martino DE CARLO   +2 more
exaly   +2 more sources

PSNR Improvement using Different Prediction Coding in Image Compression

open access: yesTikrit 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
doaj   +1 more source

Symmetric Cryptography With Shift 2n-1, Hash Transformation, Optimization-Based Controller for Medical Image Infosecurity: Case Study in Mammographic Image

open access: yesIEEE 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
doaj   +1 more source

Robust image transmission performed by SPIHT and turbo-codes [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
This work describes the method for providing robustness to errors from a binary symmetric channel for the SPIHT image compression. The source rate and channel rate are jointly optimized by a stream of fixed-size channel packets. Punctured turbo codes are
Lakhdar Moulay Abdelmounaim   +2 more
doaj   +1 more source

Cellular automata-based approach for salt-and-pepper noise filtration

open access: yesJournal 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
doaj   +1 more source

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