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1. Full Text A software supported image enhancement approach based on DCT and quantile dependent enhancement with a total control on enhancement level: DCT-Quantile
by Tiwari, Mayank and Lamba, Subir Singh and Gupta, Bhupendra
Multimedia Tools and Applications, ISSN 1380-7501, 06/2019, Volume 78, Issue 12, pp. 16563 - 16574
In many computer vision applications like medical imaging, pattern recognition etc., image enhancement is an important pre-processing requirement which is used... 
Mean-shift problem | Contrast enhancement | Linearly quantile separated histogram equalization | Discrete cosine transform | Greyscale images | PERFORMANCE | COMPUTER SCIENCE, INFORMATION SYSTEMS | ENGINEERING, ELECTRICAL & ELECTRONIC | COMPUTER SCIENCE, SOFTWARE ENGINEERING | SOURCE-CAMERA IDENTIFICATION | COMPUTER SCIENCE, THEORY & METHODS | HISTOGRAM EQUALIZATION | BRIGHTNESS PRESERVATION | Product enhancement | Machine vision | Medical imaging equipment
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2. Full Text Redefining normal facial nerve enhancement: Healthy subject comparison of typical enhancement patterns - Unenhanced and contrast-enhanced spin-echo versus 3d inversion recovery-prepared fast spoiled gradient-echo imaging
by Dehkharghani, Seena and Lubarsky, Michael and Aiken, Ashley H and Kang, Jian and Hudgins, Patricia A and Saindane, Amit M
American Journal of Roentgenology, ISSN 0361-803X, 2014, Volume 202, Issue 5, pp. 1108 - 1113
OBJECTIVE. Normal facial nerve enhancement patterns derived from spin-echo (SE) sequences have not been systematically compared on contrast-enhanced 3D... 
Head and neck | Mri techniques | Facial nerve | MP-RAGE | facial nerve | MRI | head and neck | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | MRI techniques | BRAIN | Facial Nerve - anatomy & histology | Humans | Middle Aged | Imaging, Three-Dimensional - methods | Magnetic Resonance Imaging - methods | Male | Contrast Media | Aged, 80 and over | Adult | Female | Aged | Retrospective Studies | Radiographic Image Enhancement
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3. Full Text Contrast enhancement on 100-and 120 kVp hepatic CT scans at thin adults in a retrospective cohort study Bayesian inference of the optimal enhancement probability
by Masuda, T and Nakaura, T and Funama, Y and Sato, T and Higaki, T and Matsumoto, Y and Yamashita, Y and Imada, N and Kiguchi, M and Baba, Y and Awai, K
MEDICINE, ISSN 0025-7974, 11/2019, Volume 98, Issue 47, p. e17902
Purpose: To assess the probability of achieving optimal contrast enhancement in 100 kVp and 120 kVp-protocol on hepatic computed tomography (CT) scans.... 
QUALITY | STATISTICS | hepatic CT | MDCT | ARTERIAL | MEDICINE, GENERAL & INTERNAL | LOW-TUBE VOLTAGE | DYNAMIC CT | PHASE HELICAL CT | CIRRHOSIS | contrast enhancement CT | LIVER | DOSE REDUCTION | WEIGHT | Bayesian analysis | Humans | Middle Aged | Radiographic Image Enhancement - methods | Tomography, X-Ray Computed - methods | Male | Thinness | Contrast Media | Liver - diagnostic imaging | Bayes Theorem | Female | Aged | Retrospective Studies | Cohort Studies
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4. Full Text Detection of Left Ventricular Thrombus by Delayed-Enhancement Cardiovascular Magnetic Resonance. Prevalence and Markers in Patients With Systolic Dysfunction
by Weinsaft, Jonathan W and Kim, Han W and Shah, Dipan J and Klem, Igor and Crowley, Anna Lisa and Brosnan, Rhoda and James, Olga G and Patel, Manesh R and Heitner, John and Parker, Michele and Velazquez, Eric J and Steenbergen, Charles and Judd, Robert M and Kim, Raymond J
Journal of the American College of Cardiology, ISSN 0735-1097, 07/2008, Volume 52, Issue 2, pp. 148 - 157
Objectives: This study sought to assess the prevalence and markers of left ventricular (LV) thrombus among patients with systolic dysfunction. Background:... 
delayed enhancement imaging | cardiovascular magnetic resonance | thrombus | VISUALIZATION | STROKE | MASSES | CARDIAC & CARDIOVASCULAR SYSTEMS | RATIONALE | HEART-FAILURE | ACUTE MYOCARDIAL-INFARCTION | 2-DIMENSIONAL ECHOCARDIOGRAPHY | RISK | CONTRAST-ENHANCEMENT | NATURAL-HISTORY | Prevalence | Thrombosis - complications | Models, Cardiovascular | Humans | Middle Aged | Ventricular Dysfunction, Left - etiology | Male | Thrombosis - epidemiology | Magnetic Resonance Imaging, Cine | Tennessee - epidemiology | Female | Aged | North Carolina - epidemiology | Heart Ventricles - pathology | Thrombosis - diagnosis | Studies | Confidence intervals | Heart failure | Anticoagulants | Heart attacks | Cardiomyopathy | Population | Drug therapy | Risk factors | Blood clots | Veins & arteries
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5. Full Text Fuzzy-Contextual Contrast Enhancement
by Parihar, Anil Singh and Verma, Om Prakash and Khanna, Chintan
IEEE Transactions on Image Processing, ISSN 1057-7149, 04/2017, Volume 26, Issue 4, pp. 1810 - 1819
This paper presents contrast enhancement algorithms based on fuzzy contextual information of the images. We introduce fuzzy similarity index and fuzzy contrast... 
Algorithm design and analysis | Histograms | Heuristic algorithms | Brightness | Transfer functions | Contrast enhancement | histogram equalization | fuzzy logic | context adaptive | Indexes | Visual perception | DYNAMIC HISTOGRAM EQUALIZATION | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE | ENGINEERING, ELECTRICAL & ELECTRONIC | Image quality | Algorithms | Similarity | Experimentation | Interferon | Fuzzy | Coefficient of variation | Pixels | Image enhancement | Distribution functions | Image contrast
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6. Full Text Contextual and Variational Contrast Enhancement
by Celik, T and Tjahjadi, T
IEEE Transactions on Image Processing, ISSN 1057-7149, 12/2011, Volume 20, Issue 12, pp. 3431 - 3441
This paper proposes an algorithm that enhances the contrast of an input image using interpixel contextual information. The algorithm uses a 2-D histogram of... 
Image quality | Algorithm design and analysis | Histograms | Face recognition | Brightness | Contrast enhancement | histogram equalization | image-quality enhancement | Image enhancement | Image-quality enhancement | Histogram equalization | IMAGE-ENHANCEMENT | COLOR IMAGES | face recognition | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE | ENGINEERING, ELECTRICAL & ELECTRONIC | Measurement | Usage | Image processing | Mathematical optimization | Pixels | Innovations | State of the art | Algorithms | Images | Norms | Image contrast
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7. Full Text Automatic Contrast Enhancement Technology With Saliency Preservation
by Ke Gu and Guangtao Zhai and Xiaokang Yang and Wenjun Zhang and Chang Wen Chen
IEEE Transactions on Circuits and Systems for Video Technology, ISSN 1051-8215, 09/2015, Volume 25, Issue 9, pp. 1480 - 1494
In this paper, we investigate the problem of image contrast enhancement. Most existing relevant technologies often suffer from the drawback of excessive... 
Measurement | Integrated circuits | Histograms | Visualization | Databases | Brightness | histogram modification framework | Contrast enhancement | saliency preservation | Optimization | sigmoid transfer mapping | quality assessment (QA) | STRUCTURAL SIMILARITY | SEARCH ALGORITHM | histogram modification framework (HMF) | ENGINEERING, ELECTRICAL & ELECTRONIC | PERCEPTION | VISUAL-ATTENTION | PHASE | BLOCK MOTION ESTIMATION | DYNAMIC HISTOGRAM EQUALIZATION | FRAMEWORK | IMAGE QUALITY ASSESSMENT | Mathematical optimization | Usage | Transfer functions
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8. Full Text Complementary value of contralateral parenchymal enhancement on DCE-MRI to prognostic models and molecular assays in high-risk ER+HER2- breast cancer
by van der Velden, Bas H M and Elias, Sjoerd G and Bismeijer, Tycho and Loo, Claudette E and Viergever, Max A and Wessels, Lodewyk F A and Gilhuijs, Kenneth G A
Clinical Cancer Research, ISSN 1078-0432, 2017, Volume 23, Issue 21, pp. 6505 - 6515
PURPOSE: To determine whether markers of healthy breast stroma are able to select a subgroup of patients at low risk of death or metastasis from patients... 
Journal Article | SYSTEM | WOMEN | IMPACT | DECISIONS | NEOADJUVANT CHEMOTHERAPY | ONCOLOGY | TAMOXIFEN | TUMOR RESPONSE | RECURRENCE | ASSOCIATION | FIBROGLANDULAR TISSUE | Prognosis | Receptor, ErbB-2 - genetics | Humans | Middle Aged | Gene Expression Regulation, Neoplastic | Proportional Hazards Models | Neoplasm Recurrence, Local - pathology | Disease-Free Survival | Magnetic Resonance Imaging | Breast Neoplasms - genetics | Estrogen Receptor alpha - genetics | Neoplasm Recurrence, Local - diagnostic imaging | Breast Neoplasms - pathology | Neoplasm Proteins | Contrast Media - therapeutic use | Female | Neoplasm Recurrence, Local - genetics | Aged | Breast Neoplasms - diagnostic imaging | Nuclear magnetic resonance--NMR | Risk groups | Markers | Health risks | Stroma | Parenchyma | Risk | Breast cancer | Assaying | Patients | Survival | ErbB-2 protein | Subgroups | Guidelines | Metastases | Chemotherapy | Molecular modelling | Magnetic resonance imaging | Experimental design | Breast | Pretreatment | Cancer
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9. Full Text MultiContrast Delayed Enhancement (MCODE) improves detection of subendocardial myocardial infarction by late gadolinium enhancement cardiovascular magnetic resonance: A clinical validation study
by Bandettini, W Patricia and Kellman, Peter and Mancini, Christine and Booker, Oscar Julian and Vasu, Sujethra and Leung, Steve W and Wilson, Joel R and Shanbhag, Sujata M and Chen, Marcus Y and Arai, Andrew E
Journal of Cardiovascular Magnetic Resonance, ISSN 1097-6647, 2012, Volume 14, Issue 1, pp. 83 - 83
Background: Myocardial infarction (MI) documented by late gadolinium enhancement (LGE) has clinical and prognostic importance, but its detection is sometimes... 
Myocardial infarction | MultiContrast Delayed Enhancement | Cardiovascular magnetic resonance | Late gadolinium enhancement | HYPERENHANCEMENT | CARDIAC & CARDIOVASCULAR SYSTEMS | HYPERTROPHIC CARDIOMYOPATHY | CONTRAST | PREVALENCE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | Coronary Circulation | Myocardial Infarction - diagnosis | Predictive Value of Tests | Reproducibility of Results | Prospective Studies | Humans | Middle Aged | Male | Myocardium - pathology | Magnetic Resonance Imaging, Cine | False Positive Reactions | Myocardial Perfusion Imaging - methods | Contrast Media | Myocardial Infarction - pathology | Sensitivity and Specificity | Adult | Female | Myocardial Infarction - physiopathology | Aged | Gadolinium DTPA | Gadolinium | Magnetic resonance imaging | Vasodilators | Heart attack | Heart rate | Cardiovascular disease | Heart attacks | Patients | Mortality | Imaging | Magnetic resonance | Images | Infarction | Assessments | Blood | Image contrast
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10. Full Text Liver parenchymal enhancement of hepatocyte‐phase images in Gd‐EOB‐DTPA‐enhanced MR imaging: Which biological markers of the liver function affect the enhancement?
by Motosugi, Utaroh and Ichikawa, Tomoaki and Sou, Hironobu and Sano, Katsuhiro and Tominaga, Licht and Kitamura, Takatoshi and Araki, Tsutomu
Journal of Magnetic Resonance Imaging, ISSN 1053-1807, 11/2009, Volume 30, Issue 5, pp. 1042 - 1046
Purpose: To clarify the factors that predict enhancement of the liver parenchyma in hepatocyte‐phase of gadolinium ethoxybenzyl diethylenetriaminepentaacetic... 
MR imaging | gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd‐EOB‐DTPA) | liver | liver function | Liver function | Gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) | Liver | EFFICACY | SAFETY | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) | CONTRAST AGENT | Biomarkers - metabolism | Gadolinium DTPA - pharmacology | Liver - pathology | Body Weight | Humans | Middle Aged | Magnetic Resonance Imaging - methods | Hepatocytes - pathology | Male | Hepatocytes - metabolism | Regression Analysis | Contrast Media - pharmacology | Aged, 80 and over | Adult | Female | Aged
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11. Full Text Minimizing individual variations in arterial enhancement on coronary CT angiographs using “contrast enhancement optimizer”: a prospective randomized single-center study
by Matsumoto, Yoriaki and Matsumoto, Yoriaki and Higaki, Toru and Higaki, Toru and Masuda, Takanori and Masuda, Takanori and Sato, Tomoyasu and Sato, Tomoyasu and Nakamura, Yuko and Nakamura, Yuko and Tatsugami, Fuminari and Tatsugami, Fuminari and Awai, Kazuo and Awai, Kazuo
European Radiology, ISSN 0938-7994, 6/2019, Volume 29, Issue 6, pp. 2998 - 3005
To investigate the clinical utility of our newly developed contrast enhancement optimizer (CEO) software for coronary CT angiography (CCTA).We randomly... 
Computed tomography angiography | Medicine & Public Health | Diagnostic Radiology | Internal Medicine | Diagnostic imaging | Interventional Radiology | Cardiac output | Imaging / Radiology | Ultrasound | Neuroradiology | Contrast media | Cardiac imaging techniques | INJECTION PROTOCOLS | ACQUISITION | VOLUME | COMPUTED-TOMOGRAPHY ANGIOGRAPHY | TEST BOLUS | DETECTOR-ROW CT | PEAK ENHANCEMENT | BODY WEIGHT | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | AGE | Coronary Vessels - diagnostic imaging | Prospective Studies | Humans | Middle Aged | Male | Iopamidol - analogs & derivatives | Contrast Media - pharmacology | Computed Tomography Angiography - methods | Coronary Angiography - methods | Coronary Artery Disease - diagnosis | Iopamidol - pharmacology | Aged, 80 and over | Adult | Female | Aged | Medical imaging | Angiography | Body weight | Statistical tests | Males | Patients | Computer programs | Confidence intervals | Contrast agents | Equivalence | Computed tomography | Coronary vessels | Aorta | Software | Females | Iodine
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12. Full Text Characterization of small (<= 3cm) hepatic lesions with atypical enhancement feature and hypointensity in hepatobiliary phase of gadoxetic acid-enhanced MRI in cirrhosis A STARD-compliant article
by Shin, SK and Kim, YS and Choi, SJ and Shim, YS and Jung, DH and Kwon, OS and Choi, DJ and Kim, JH
MEDICINE, ISSN 0025-7974, 07/2017, Volume 96, Issue 29, p. e7278
It is difficult to characterize the nodular lesions in cirrhotic liver if typical enhancement pattern is not present on dynamic contrastenhanced imagings.... 
DIFFUSION-WEIGHTED MRI | dysplastic nodule | EARLY HEPATOCELLULAR-CARCINOMA | histological grade | MEDICINE, GENERAL & INTERNAL | NODULES | T2-weighted imaging | FOCAL LIVER-LESIONS | ULTRASOUND | IMAGES | GRADE | IMAGING DIAGNOSIS | DIFFERENTIATION | diffusion-weighted magnetic resonance imaging | hepatocellular carcinoma | PROGRESSION | Liver - pathology | Follow-Up Studies | Humans | Middle Aged | Magnetic Resonance Imaging - methods | Male | Carcinoma, Hepatocellular - diagnostic imaging | Liver Cirrhosis - diagnostic imaging | Neoplasm Grading | Liver - diagnostic imaging | Sensitivity and Specificity | Aged, 80 and over | Adult | Female | Retrospective Studies | Liver - surgery | Kaplan-Meier Estimate | Carcinoma, Hepatocellular - surgery | Tumor Burden | Disease-Free Survival | Contrast Media | Carcinoma, Hepatocellular - pathology | Liver Cirrhosis - pathology | Liver Cirrhosis - surgery | Aged | Gadolinium DTPA | CT imaging | Usage | Care and treatment | Hepatoma | Diagnosis | Magnetic resonance imaging
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13. Full Text Quantitative comparison of delayed ferumoxytol T-1 enhancement with immediate gadoteridol enhancement in high grade gliomas
by Horvath, A and Varallyay, CG and Schwartz, D and Toth, GB and Netto, JP and Barajas, R and Varallyay, P and Szidonya, L and Firkins, J and Youngers, E and Fu, RW and Ambady, P and Bogner, P and Neuwelt, EA
MAGNETIC RESONANCE IN MEDICINE, ISSN 0740-3194, 07/2018, Volume 80, Issue 1, pp. 224 - 230
PurposeDelayed ferumoxytol enhancement on T-1-weighted images appears visually similar to gadoteridol enhancement. The purpose of this study was to... 
GADOLINIUM | delayed enhancement | MRI | SAFETY | NANOPARTICLE | alternative contrast agent | ferumoxytol | USPIO | gadoteridol | CONTRAST AGENT | glioblastoma | IMAGES | OPTIMIZATION | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | BRAIN | NEPHROGENIC SYSTEMIC FIBROSIS | Brain Neoplasms - diagnostic imaging | Humans | Middle Aged | Male | Ferrosoferric Oxide - chemistry | Image Processing, Computer-Assisted - methods | Chemoradiotherapy | Gadolinium - chemistry | Bevacizumab | Magnetic Resonance Imaging | Glioma - diagnostic imaging | Heterocyclic Compounds - chemistry | Adult | Contrast Media - chemistry | Female | Organometallic Compounds - chemistry | Image Enhancement - methods | Pattern Recognition, Automated
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14. Full Text Hepatocellular carcinoma: Hepatocyte-selective enhancement at gadoxetic acid-enhanced MR imaging - Correlation with expression of sinusoidal and canalicular transporters and bile accumulation
by Tsuboyama, Takahiro and Onishi, Hiromitsu and Kim, Tonsok and Akita, Hirofumi and Hori, Masatoshi and Tatsumi, Mitsuaki and Nakamoto, Atsushi and Nagano, Hiroaki and Matsuura, Nariaki and Wakasa, Kenichi and Tomoda, Kaname
Radiology, ISSN 0033-8419, 06/2010, Volume 255, Issue 3, pp. 824 - 833
Purpose: To investigate the mechanism of enhancement of hepatocellular carcinoma (HCC) on gadoxetic acid-enhanced hepatobiliary phase magnetic resonance (MR)... 
BILIRUBIN | FOCAL LIVER-LESIONS | SUPERPARAMAGNETIC IRON-OXIDE | SAFETY | IMAGES | GD-EOB-DTPA | HEPATIC-UPTAKE | HYPERPLASIA | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | CONTRAST AGENT | POLYPEPTIDE | Organic Anion Transport Protein 1 - metabolism | Humans | Middle Aged | Magnetic Resonance Imaging - methods | Liver Neoplasms - surgery | Male | Hepatocytes - metabolism | Immunoenzyme Techniques | Contrast Media | Carcinoma, Hepatocellular - pathology | Liver Neoplasms - metabolism | Aged, 80 and over | Female | Liver Neoplasms - pathology | Aged | Carcinoma, Hepatocellular - therapy | Retrospective Studies | Multidrug Resistance-Associated Proteins - metabolism | Bile | Carcinoma, Hepatocellular - metabolism | Gadolinium DTPA
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15. Full Text Performance of delayed-enhancement magnetic resonance imaging with gadoversetamide contrast for the detection and assessment of myocardial infarction : An international, multicenter, double-blinded, randomized trial
by Kim, Raymond J and Albert, Timothy S.E and Wible, James H and Elliott, Michael D and Allen, John C and Lee, Jennifer C and Parker, Michele and Napoli, Alicia and Judd, Robert M and Gadovers Myocard Infa Imag Invest and Gadoversetamide Myocardial Infarction Imaging Investigators
Circulation, ISSN 0009-7322, 02/2008, Volume 117, Issue 5, pp. 629 - 637
Background - The identification and assessment of myocardial infarction (MI) are important for therapeutic and prognostic purposes, yet current recommended... 
Myocardial infarction | Magnetic resonance imaging | Imaging | TRANSMURAL EXTENT | VISUALIZATION | magnetic resonance imaging | CARDIAC & CARDIOVASCULAR SYSTEMS | myocardial infarction | PARADOXES | HIGH AGREEMENT | ELEVATION | COMMITTEE | imaging | Q-WAVE | COLLEGE | LOW KAPPA | PERIPHERAL VASCULAR DISEASE | IRREVERSIBLE INJURY | Myocardial Infarction - diagnosis | South America | Acute Disease | Double-Blind Method | United States | Europe | Humans | Middle Aged | Magnetic Resonance Imaging - methods | Male | Patient Selection | Contrast Media | Sensitivity and Specificity | Organometallic Compounds - therapeutic use | Adult | Female | Aged | Image Enhancement - methods | Chronic Disease | Gadolinium | Usage | Diagnosis | Research | Heart attack
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16. Full Text Contrast Enhancement-Based Forensics in Digital Images
by Gang Cao and Yao Zhao and Rongrong Ni and Xuelong Li
IEEE Transactions on Information Forensics and Security, ISSN 1556-6013, 03/2014, Volume 9, Issue 3, pp. 515 - 525
As a retouching manipulation, contrast enhancement is typically used to adjust the global brightness and contrast of digital images. Malicious users may also... 
digital forensics | composite image | Histograms | Information science | Computer vision | Image coding | Filtering | Digital images | Transform coding | Fingerprint recognition | contrast enhancement | image forgery | INTRINSIC FINGERPRINTS | COMPUTER SCIENCE, THEORY & METHODS | FORGERY DETECTION | ENGINEERING, ELECTRICAL & ELECTRONIC | Optometry | Interferon | Medical technology | Artifacts | Forensic engineering | Image manipulation | Digital | Mapping | Image enhancement | Image contrast | Image detection
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17. Full Text Efficient Contrast Enhancement Using Adaptive Gamma Correction With Weighting Distribution
by Shih-Chia Huang and Fan-Chieh Cheng and Yi-Sheng Chiu
IEEE Transactions on Image Processing, ISSN 1057-7149, 03/2013, Volume 22, Issue 3, pp. 1032 - 1041
This paper proposes an efficient method to modify histograms and enhance contrast in digital images. Enhancement plays a significant role in digital image... 
Histograms | Image color analysis | gamma correction | histogram modification | Digital images | Brightness | Contrast enhancement | histogram equalization | Entropy | Mathematical model | Equations | BRIGHTNESS PRESERVATION | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE | ENGINEERING, ELECTRICAL & ELECTRONIC | Artifacts | Data Interpretation, Statistical | Reproducibility of Results | Algorithms | Image Interpretation, Computer-Assisted - methods | Sensitivity and Specificity | Statistical Distributions | Video Recording - methods | Image Enhancement - methods | Measurement | Functions, Gamma | Usage | Image processing | Innovations | Distribution (Probability theory) | Pixels | Luminance | State of the art | Images | Digital | Transformations | Image contrast
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18. Full Text Late gadolinium enhancement on cardiac magnetic resonance predicts adverse cardiovascular outcomes in nonischemic cardiomyopathy: A systematic review and meta-analysis
by Kuruvilla, Sujith and Adenaw, Nebiyu and Katwal, Arabindra B and Lipinski, Michael J and