Results 11 to 20 of about 232,463 (279)

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
openaire   +2 more sources

Adaptive Image Thresholding Based on the Peak Signal-to-noise Ratio

Research Journal of Applied Sciences, Engineering and Technology, 2014
L'objectif de cette recherche est d'améliorer un algorithme de seuillage basé sur le rapport de bruit du signal de crête. Le seuillage est une étape critique dans la reconnaissance des formes et a un effet significatif sur les étapes ultérieures des applications d'imagerie.
Farshid PirahanSiah, Siti Norul Huda Sheikh Abdullah, Shahnorbanun Sahran   +2 more
openaire   +2 more sources

Thin Sectioning Improves the Peak Intensity and Signal-to-Noise Ratio in Direct Tissue Mass Spectrometry

Journal of the Mass Spectrometry Society of Japan, 2006
Direct tissue analysis and imaging using mass spectrometry can extract a mass of information directly from complex biological samples. To carry out successful profiling and mapping of biomolecules, though, techniques for correct sample preparation are required. This article focuses on the influences of tissue thickness on mass spectra.
SUGIURA, Yuki, SHIMMA, Shuichi, SETOU, Mitsutoshi   +2 more
openaire   +3 more sources

KiDS-450: cosmological constraints from weak lensing peak statistics - I. Inference from analytical prediction of high signal-to-noise ratio convergence peaks [PDF]

, 2017
This paper is the first of a series of papers constraining cosmological parameters with weak lensing peak statistics using similar to 450 deg(2) of imaging data from the Kilo Degree Survey (KiDS-450).
H. Shan, Xiangkun Liu, H. Hildebrandt, Chuzhong Pan, N. Martinet, Z. Fan, P. Schneider, M. Asgari, J. Harnois-Déraps, H. Hoekstra, A. Wright, J. Dietrich, T. Erben, Fedor I. Getman, A. Grado, C. Heymans, D. Klaes, K. Kuijken, J. Merten, E. Puddu, M. Radovich, Qiao Wang   +21 more
semanticscholar   +1 more source

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
doaj   +1 more source

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

ICTACT 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

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
doaj   +1 more source

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
doaj   +1 more source

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, Hewayda A. Elgawalby, Ibrahim M. Hanafy, Wael A. Awad, Ahmed Ismail Ebada, S. S. Askar, Mohamed Abouhawwash   +6 more
doaj   +1 more source

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
doaj   +1 more source