ENGINEERING RESEARCH PAPERS

image enhancement research papers




A Local Depth Image Enhancement Scheme for View Synthesis
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ABSTRACT The quality of the depth map is crucial for depth image based rendering (DIBR) which enables a variety of advanced 3D video related applications such as perceived depth adjustment for stereoscopic video and intermediate view generation for multi view

Genetic image enhancement based on saturation feedback
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In this paper an adaptive approach for color image enhancement is proposed. In this approach, the saturation feedback technique is used as a means of supplementing color image shmpness and contrast. This technique of the saturation feedback can serve to 

A Variational Bayesian Inference Framework for Multiview Depth Image Enhancement
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ABSTRACT In this paper, a general model-based framework for multiview depth image enhancement is proposed. Depth imagery plays a pivotal role in emerging free-viewpoint television. This technology requires high quality virtual view synthesis to enable viewers to 

COMBINING DEPTH INFORMATION AND LOCAL EDGE DETECTION FOR STEREO IMAGE ENHANCEMENT
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ABSTRACT The recent developments in 3D display technology have opened new horizons and have raised a number of challenges related to the processing and coding of 3D media. Today, stereoscopic image technology is becoming widely used in many fields. The 

Liver Ultrasound Image Analysis using Enhancement Techniques
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ABSTRACT Liver cancer is the sixth most common malignant tumour and the third most common cause of cancer-related deaths worldwide. Chronic Liver damage affects up to 20% of our population. It has many causes-viral infections (Hepatitis B and C), toxins, genetic, 

Comparative Study Of Image Enhancement Using Median And High Pass Filtering Methods
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ABSTRACT Image Enhancement is one of the important aspects of image processing to improve the interpretability of the information present in images for human viewers. Filter techniques are mainly used for smoothness and sharpening of images and extracting the 

An Image Enhancement Technique of X An Image Enhancement Technique of X-Ray Carry Ray Carry Ray Carry-on Luggage on Luggage for Detection of C for
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ABSTRACT Luggage inspection systems play an important role in ensuring national security at airports. In this research, an effort of a new enhancement algorithm of dual-energy X-ray carry-on luggage images is proposed to ensure the national security at airports. A new 

Brain Image Enhancement-A Survey
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ABSTRACT Brain image enhancement, Examination, Conception and investigation permit measurable exploration and conception of medical images of various modalities such as MEG, EEG, PET, MRI, CT or microscopy, to name a few. The basic purpose of 

Multi-scale image enhancement using a second derivative-like measure of contrast
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ABSTRACT Image enhancement algorithms attempt to improve the visual quality of images for human or machine perception. Most direct multi-scale image enhancement methods are based on enhancing either absolute intensity changes or the Weber contrast at each scale 

Fast Hue-Preserving Histogram Equalization Methods For Color Image ContrastEnhancement
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ABSTRACT In this work, we formalize a generic fast hue-preserving histogram equalization method based on the RGB color space for image contrast enhancement and two versions of that generic process. The first method estimates a RGB 3D histogram to be equalized 

Image Enhancement Method using E-spline
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ABSTRACT This thesis introduces a new fast method for the calculation of exponential B- splines sample at regular intervals. As another approach, this paper presents an exponential B-spline interpolation kernel using simple mathematics based on Fourier approximation. A 

US Breast Cancer Image Enhancement and Wavelet Based Denoising
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ABSTRACT Breast cancer is the common form of cancer with 81% of cases occurring in women aged 50years and over. In medical image processing, image denoising has become a very essential exercise all through the diagnosis because Ultrasound (US) images are 

Joint statistical analysis of images and keywords with applications in semantic image enhancement
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ABSTRACT With the advent of social image-sharing communities, millions of images with associated semantic tags are now available online for free and allow us to exploit this abundant data in new ways. We present a fast non-parametric statistical framework 

Image Quality Enhancement Using the Direction and Thickness of Vein Lines for Finger-Vein Recognition
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ABSTRACT On the basis of the increased emphasis placed on the protection of privacy, biometric recognition systems using physical or behavioural characteristics such as fingerprints, facial characteristics, iris and finger-vein patterns or the voice have been 

Review of applications of partial differential equations for image enhancement
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Image restoration and enhancement are important parts of digital image processing, belonging to the early visual image processing problems. Image pre-processing is the necessary preliminary work of image analysis, such as filtering to reduce image noise and 

Image enhancement for underwater pulsed laser line scan imaging system
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ABSTRACT Recent progress in system hardware such as laser, photon detectors and other electronic and optical components resulted in significant improvement for the underwater serial laser imaging system. Nevertheless, during normal system operation, system issues 

Image fusion-based contrast enhancement
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ABSTRACT The goal of contrast enhancement is to improve visibility of image details without introducing unrealistic visual appearances and/or unwanted artefacts. While global contrast- enhancement techniques enhance the overall contrast, their dependences on the global 

Landsat ETM+ 7 Digital Image Processing Techniques for Lithological and Structural Lineament Enhancement: Case Study Around Abidiya Area, Sudan
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 Keyword: Remote sensing, spectral enhancement, band ratio, image transformation, image filtering.  (ii) Image enhancement techniques involve procedures for creation of new modified images that contain more information to ease the visual interpretations of certain features. 

Novel image enhancement method based on an artificial life model
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ABSTRACT Processes of image acquisition, transmission and compression can degrade the images, affecting, for example, the quality of the features extracted from the imaged objects. Techniques of image enhancement have been developed to increase the contrast 

A Novel Color Microscope Image Enhancement Method Based on HSV Color Space and Curvelet Transform
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ABSTRACT A new method which is suitable for enhancing the color microscopic image quality based on HSV color space and curvelet transform is presented in this paper. The color microscopic image is firstly divided into hue, saturation and value components from RGB 

A Fast Image Enhancement Technique Using a New Scanning Path for Critical Dimension Measurement of Glass Panels
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Glass panels have been extensively used in IT products, phones, and industrial equipment. For the current market, manufacturers must provide high quality glass panels. The CD measurement referred to in this paper is the measurement of the distance between two 

Image Enhancement Techniques for Fingerprint Images
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ABSTRACT Fingerprints are the most popular biometric identification. Everyone is known to have unique fingerprints and these fingerprints patterns do not change throughout the life. This is the reason for the popularity of fingerprints as the biometric identifier. The quality of 

Analysis on Domain based Method for Image Enhancement
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ABSTRACT Capturing images is not a difficult task but getting perception from the picture is difficult because it may suffer from having least picture quality due to capturing devices and environmental condition like cloud, rain, water and geographical distance and poor 

Modified Dynamic Histogram Equalization For Image Enhancement in Gray-scale Images
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ABSTRACT To improve the quality of digital images captured in low light environment from consumer electronics devices like cell phone cameras, Modified Dynamic Histogram Equalization (MDHE) is proposed. Initially, the proposed method divides the histogram 

Comparison of Satellite Image Enhancement Techniques in Wavelet Domain
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ABSTRACT In this study, a comparison of various existing satellite image resolution enhancement techniques in wavelet domain is done. Each method is analysed quantitatively and visually. There are various wavelet domain based methods such as 

Retinal image enhancement and registration for the evaluation of longitudinal changes
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ABSTRACT Retinal images are long-accepted clinical diagnostic method for ocular diseases. Of late, automated assessment of retinal images has proven to be a useful adjunct in clinical decision support systems. In this paper, we propose a retinal image registration 

A new method based on multi-scale retinex for low contrast image enhancement
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ABSTRACT According to the characteristic of low visibility of night image, we proposed an improved image enhancement method based on multi-scale Retinex. In our method, we replace the Gaussian filter as Blur filter, and replace logarithm gain as linear gain to 

Extended motion adaptive signal integration technique for real-time image enhancement
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ABSTRACT Fast moving cameras often generate distorted and blurred images characterized by reduced sharpness (due to motion blur) and insufficient dynamic range. Reducing sensor integration times to minimize blur are often used but the light intensity 

A Multi-Level Model for Fingerprint Image Enhancement
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ABSTRACT -Fingerprint has remained a very vital index for human recognition. In the field of security, series of Automatic Fingerprint Identification System (AFIS) have been developed. One of the indices for evaluating their contributions to the enforcement of security is the 

Image Enhancement Through Noise Suppression Using Nonlinear Parameterized Adaptive Recursive Model
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ABSTRACT Quality of the image is corrupted by noise in many cases so that it is difficult to extract the useful information. Noise corrupts the image during sensing with malfunctioning cameras, storing in faulty memory locations or sending through a noisy channel. The main 

Wavelet-based Image Enhancement using Nonlinear Anisotropic Diffusion
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ABSTRACT Many sensing techniques and image processing applications are characterized by random noisy, or corrupted, image data. Nonlinear Anisotropic diffusion is a popular, and theoretically well understood, technique for enhancing such images. Diffusion approaches 

Colonic Lacerations, Mucosal Scars and Image Enhancement: An On-the-Spot Diagnosis
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An 84-year-old female was admitted with acute-on-chronic renal failure. She had been complaining of profuse, watery diarrhoea and vomiting for few weeks prior to her admission. She had a previous history of aortic valve replacement and hypothyroidism for which she 

Image Enhancement using Filtering Techniques
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ABSTRACT Image enhancement is used to improve the quality of an image. In this paper, two novel algorithms CB (Center-to-Boundary) and BB (Boundary-to-Boundary) filters have proposed. These algorithms have implemented for mask, but in this paper, authors have 

Overview of techniques used for image resolution enhancement
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ABSTRACT Image resolution enhancement is one of the first steps in image processing. Image resolution enhancement is the process of manipulating an image so that resultant image is more suitable than the original one for specific application. Image enhancement 

A NOVEL SHOCK FILTER FOR IMAGE RESTORATION AND ENHANCEMENT
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ABSTRACT The paper proposes a novel shock filter for image restoration and enhancement tasks. The method is put in terms of a system of partial differential equations that describes both the evolution of the processed image and of its smoothed second order derivative. 

Efficient Adaptive Wiener Filter with Thresholding for Better Image Enhancement
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ABSTRACT The major objective of the image enhancement techniques is to emphasize and sharpen the features of image for better display and investigation. It is the process of enhancing the quality of the image by applying the enhancement techniques to assist for 

A Non Linear Technique for Image Enhancement Based on Discrete Wavelet Transform
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ABSTRACT We propose a new image enhancement scheme by using wavelet transform and a smooth approximation of a piecewise non linear filter. The proposed technique decomposes the input image into the four sub-bands by using Discrete Wavelet Transform (DWT). The 

Ultrasound Liver Image Enhancement Using Watershed Segmentation Method
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ABSTRACT This paper proposed the ultrasound liver image enhancement based on watershed segmentation method. Image segmentation is an important problem in medical image processing fields. The focus of this study is to enhance the region of liver based on 

Image processing: digital vs polarization-based enhancement\ encoding techniques
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ABSTRACT Image processing is a field of great interest for many applications. Nowadays it is very hard to name an application where image processing is not involved. Digital techniques remains the dominant ones applied to digital image processing with significant 

Comparative Study of Image Enhancement Techniques
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ABSTRACT Fingerprints are the oldest and most widely used form of biometric identification. The performance of any fingerprint recognizer highly depends on the fingerprint image quality. Different types of noises in the fingerprint images pose greater difficulty for 

Automated image enhancement using power law transformations
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ABSTRACT We propose a scheme for automating power law transformations which are used for image enhancement. The scheme we propose does not require the user to choose the exponent in the power law transformation. This method works well for images having poor 

Visibility Enhancement Using an Image Filtering Approach
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ABSTRACT The misty, foggy, or hazy weather conditions lead to image color distortion and reduce the resolution and the contrast of the observed object in outdoor scene acquisition. In order to detect and remove haze, this article proposes a novel effective algorithm for 

An AIHT based Histogram Equalization Algorithm for Image Contrast Enhancement
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ABSTRACT Histogram Equalization (HE) is an effective technique for contrast enhancement. However, the traditional HE method usually results in extreme over-enhancement, which causes the unnatural look and visual artifacts in the processed image. To solve the 

Image quality assessment of the right ventricle with three different delayed enhancementsequences in patients suspected of ARVC/D
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ABSTRACT Histopathologic findings in arrhythmogenic right ventricular cardiomyopathy/ dysplasia (ARVC/D) are replacement of the normal myocardium with fatty and fibrous elements with preferential involvement of the right ventricle. The right ventricular fibrosis 

Security Enhancement Scheme for Image Steganography using S-DES Technique
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ABSTRACT In today? s information age, information sharing and transfer has increased exponentially. The information vulnerable to unauthorised access and interception, while in storage or transmission. Cryptography and Steganography are the two major techniques 

Image Enhancement and Its Various Techniques
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ABSTRACT Image enhancement is the task of applying certain alterations to an input image like as to obtain a more visually pleasing image. The alteration usually requires interpretation and feedback from a human evaluator of the output resulting image. Image enhancement 

A Comparative Study on Image Enhancement Using Image Fusion
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ABSTRACT Image enhancement is used for improving the visual quality of an image. In this paper two methods for image enhancement using image fusion have been described. The process of image fusion uses a source image and its histogram equalized image. The two 

Advanced Image Enhancement of Ultrasonic Scan Images For Intelligent Quality Inspection of Adhesively Bonded Joints in Ceramics
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ABSTRACT Quality assurance is the systematic monitoring and evaluation of the various aspects of a product to maximize the probability that minimum standards of. To achieve zero defects (Zero PPM) output cost-effectively, manufacturers are making the commitment to 

An Improved Grunwald-Letnikov Fractional Differential Mask for Image Texture Enhancement
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ABSTRACT Texture plays an important role in identification of objects or regions of interest in an image. In order to enhance this textural information and overcome the limitations of the classical derivative operators a two-dimensional fractional differential operator is 

Bio-inspired framework for automatic image quality enhancement
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ABSTRACT We propose a bio-inspired framework for automatic image quality enhancement. Restoration algorithms usually have fixed parameters whose values are not easily settable and depend on image content. In this study, we show that it is possible to 

Automatic Image Equalization and Contrast Enhancement
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ABSTRACT In this paper, we propose an adaptive image equalization algorithm which automatically enhances the contrast in an input image. The algorithm uses Gaussian mixture model (GMM) to model the image grey-level distribution, and the intersection points of the 

Color Image Enhancement Using Steady State Genetic Algorithm
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ABSTRACT The purpose of this paper is to enhance the colored images using the enhancement developed steady state genetic algorithm, SSGA, with modified fitness function to get more accurate result and less noise. In this paper the Hue Saturation 

Enhancement of vision systems based on runway detection by image processing techniques
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ABSTRACT An explicit way of facilitating approach and landing operations of fixed-wing aircraft in degraded visual environments is presenting a coherent image of the designated runway via vision systems and hence increasing the situational awareness of the flight 

A Modified Medical Image Coder with Contrast Enhancement
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ABSTRACT Medical images obtained from medical imaging modalities such as computed tomography (CT), magnetic resonance imaging (MRI), ultrasound (US), and other modalities require large amounts of space for storage and also pose a problem during transmission. 

Resolution Enhancement Optimizations for Hyperspectral and Multispectral Synthetic ImageFusion
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ABSTRACT Many sensor systems are available for sensing the earth surface from satellites as well as airborne and mobile platforms. Thus, fusing data from multiple sensors is becoming a common theme in earth remote sensing. A major goal of remote sensing 

From prosopagnosia to image processing: feature enhancement module
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ABSTRACT Prosopagnosia is a term coming from Greeks words prosop(face) and agnosia(inability/impossibility to recognize or to identify it), also known as face blind affection. It might be present in different proportions in not so rare persons as it was 

A new satellite image segmentation enhancement Technique for weak image boundaries
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ABSTRACT Level Set Method (LSM) and Snakes Method (SM) are two different procedures used in image processing to determine objects location and boundaries. In this research, a new algorithm for image processing of the weak gradient features was developed to 

IMAGE ENHANCEMENT OF TEMPERATURE SENSING THERMAL PAINT COLOR CONTOUR USING A DESIGNED FILTER FOR EFFICIENT AUTOMATIC
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ABSTRACT Temperature sensitive thermal paints find a wide application in thermal mapping of engine components operating at high temperatures with a major reference to aerospace applications. In a view to increase the operating efficiencies the modern gas turbines are 

Color Correction Based Color Image Enhancement
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ABSTRACT Color correction is an important step in image enhancement. It improves the appearance of the images affected by color cast. There are many color correction algorithms available in literature. Gray world assumption takes into account human visual system and 

Enhancement of Infrared Image: A Review
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ABSTRACT This paper provides an up-to-date critical survey of enhancement of infrared images by two popular algorithms namely spatial and spatiotemporal homomorphic filtering (SHF and STHF) based upon a infrared imaging model. Although spatiotemporal 

image enhancement using fuzzy



Image enhancement using smoothing with fuzzy sets
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Abstract-A model for grey-tone image enhancement using the concept of fuzzy sets is suggested. It involves primary enhancement, smoothing, and then final enhancement. The algorithm for both the primary and final enhancements includes the extraction of fuzzy

Image enhancement using fuzzy technique
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Abstract:Image enhancement means to enrich the perception of images for human viewers. It can reduce impulsive noise, sharpen the edges with the help of different image enhancement techniques. Fuzzy techniques can manage the uncertainty and imperfection

Enhancement of Auto Image Zooming using Fuzzy Set Theory
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Abstract Nowadays, fuzzy logic applications can be found in a variety of fields, especially, engineering and scientific areas. In this regard, applications of fuzzy logic in the field of image recognition are increasing. Auto image zooming is one of the important techniques

An Improved Method for Image Enhancement Using Fuzzy Approach
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Abstract-Image enhancement is a mean as the improvement of an image appearance by increasing dominance of some features or by decreasing ambiguity between different regions of the image. An image enhancement in spatial domain is a process which

An Improvement Approach for EDGE image enhancement using fuzzy set theory and cellular learning automata (CLA)
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Abstract: The most common degradations in images is their poor distinction quality. Edge enhancement is an image process filter that enhances the edge contrast of an image in an effort to enhance its acutance (apparent sharpness). The projected paper uses the

Histogram Eualization Techniques for Image Enhancement using Fuzzy Logic
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ABSTRACT In image enhancement various enhancement schemes have been used for enhancing which includes gray scale manipulation, filtering and Histogram Equalization (HE). Histogram equalization techniques using fuzzy logic is one of the unique image

Membership Function modification for Image Enhancement using fuzzy logic
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Abstract: Objective of our paper is to introduce ramp membership function and the modification of membership function using square and cube operator for enhancing the visual appearance of digital image using fuzzy logic based approach. The proposed

An Enhanced Approach for EDGE Image Enhancement using Fuzzy set theory and CLA
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Abstract: The most common degradations in images is their poor contrast quality. Edge Enhancement is the art of examining images for identifying objects and judging their significance. The proposed paper uses the concept of hybrid edge detection method

A New Approach in a Gray-Level Image Contrast Enhancement by using Fuzzy Logic Technique
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ABSTRACT Fuzzy Logic technique represents a new approach for gray level image contrast enhancement. The image contrast problem is one of the main problems that confront the researchers in the field of digital image processing, such as in the biomedical image

Enhancement of Underwater Image using Fuzzy Histogram Equalization
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ABSTRACT Image enhancement is a process of improving the quality of image by improving its feature. The underwater images suffer from low contrast and resolution due to scattering of light and poor visibility conditions. In this paper we proposed an image enhancement

Image Enhancement Using Two Stage Hybrid Neuro-Fuzzy Filtering Technique
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Abstract:A new operator for restoring digital images corrupted by impulse noise is presented. The proposed operator is a hybrid filter obtained by appropriately combining a new decision based switching median filter Canny Edge Detector and a Adaptive Neuro-

A Survey Paper Based On Contrast Enhancement of Gray Image Using Fuzzy Based Contrast Intensification Operator
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Abstract:-In this recent period, the image processing plays a key function in different fields of engineering and Research. Perhaps to increase the effectiveness of this field, quality of an image should be enhanced to support the human sensitivity or machine visualization. The

Performance Analysis of Type-2 Fuzzy System for Image Enhancement usingOptimization
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Abstract: This study performed the enhanced performance analysis of type-2 using cuckoo optimization algorithm. Two thresholds the lower and the upper are defined to provide an estimate of the under exposed, mixed-exposed and over-exposed regions in the image.

Image Enhancement Techniques By Using Fuzzy Logic
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Abstract Present day applications require various kinds of images and pictures as sources of information for interpretation and analysis. Whenever an image is converted from one form to another, some form of degradation occurs at the output. The output image has to

A NEW DEVELOPED FUZZY INFERENCE TECHNIQUE FOR IMAGE ENHANCEMENT
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ABSTRACT:-Image restoration is a process of improvement of corrupted or noisy image for obtaining a clean original image. Numbers of restoration methods were utilized for performing image enhancement process. In such works there is lack of analysis in

A New Approach in a Gray-Level Image Contrast Enhancement by using Fuzzy Logic Technique
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ABSTRACT Fuzzy Logic technique represents a new approach for gray level image contrast enhancement. The image contrast problem is one of the main problems that confront the researchers in the field of digital image processing, such as in the biomedical image

FUZZY ENTROPY BASED OPTIMAL THRESHOLDING TECHNIQUE FOR IMAGE ENHANCEMENT
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ABSTRACT Soft computing is likely to play aprogressively important role in many applications including image enhancement. The paradigm for soft computing is the human mind. The soft computing critique has been particularly strong with fuzzy logic. The fuzzy

Analysis of various Fuzzy Based image enhancement techniques
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Abstract: Fuzzy logic is a multivalent logic that is used to deal with the uncertainty and imprecision. Various fuzzy based methods have been developed for image enhancement. Fuzzy IF THEN rules, Fuzzy based reasoning and Fuzzy inference system etc have been

Fuzzy Logic and Artificial Neural Network based Hybrid Technique for Image Enhancement
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Abstract:A wide range of Researcher scholars working on the field of computer vision/machine vision has mainly focused on the field of image enhancement due to the reason that additional knowledge and hidden information is provided by the results


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