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Face Detection in Intelligent Ambiences with Colored Illumination [chapter]

Christina Katsimerou, Judith A. Redi, Ingrid Heynderickx
2013 Advances in Intelligent Systems and Computing  
The method is based on the creation of a robust skin mask, using general color constancy techniques, and the application of the Viola-Jones face detector on the candidate face areas.  ...  newly proposed algorithm than for the most widely used face detection algorithms.  ...  Subsequently, we color corrected the images with the four color constancy algorithms discussed above, using the Matlab implementation available online [2] .  ... 
doi:10.1007/978-3-319-00566-9_25 fatcat:7zt7szhhsfd57jc5jbuzisa4bu

Color Constancy Algorithms for Object and Face Recognition [chapter]

Christopher Kanan, Arturo Flores, Garrison W. Cottrell
2010 Lecture Notes in Computer Science  
Brightness and color constancy is a fundamental problem faced in computer vision and by our own visual system.  ...  We analyze the relative performance of the algorithms on the AR face and ALOI datasets using both a SIFT-based recognition system and a simple pixel-based approach.  ...  AR Face Dataset The Aleix and Robert (AR) dataset 2 [20] is a large face dataset containing over 4,000 color face images (768 × 576) under varying lighting, expression, and dress conditions.  ... 
doi:10.1007/978-3-642-17289-2_20 fatcat:n3csy4er3rd6tb5rq56pwysoly

Color in machine vision and its application

Linmi Tao, Guangyou Xu
2001 Chinese Science Bulletin  
EVWUDFW Color is the phenomenon of human visual perception and the module of machine vision. Color information is widely used in the areas of virtual reality and humancomputer interaction.  ...  including basic theories and the application of color information in virtual reality, content-based image retrieval, and face recognition.  ...  For the first case, Tao [79] made use of the two-step color constancy algorithm [52] to clear highlight and shadow in the face region.  ... 
doi:10.1007/bf03187020 fatcat:ge2zcmkpnnavldf6yv2p5xv75e

Identification of Fake Images Using Illumination Classification
English

Poojashri A Shrirao, Prakash Mohod
2015 International Journal of Innovative Research in Computer and Communication Engineering  
based method as well as statistical edge method which make use of inverse intensity chromaticity color space.  ...  In this paper, we are focusing on authenticity of images which are based on concept of illumination color classification or estimation the illumination color is estimated using to method i.e. physical  ...  In color constancy method Reflection model serve special purpose for illuminance scene by using one light source and the observed color of the light source.  ... 
doi:10.15680/ijircce.2015.0307031 fatcat:wnsxfgajdre2dg5qpmcchydeeu

Skin-based Face Detection-Extraction and Recognition of Facial Expressions [chapter]

N. Bourbakis, P. Kakumanu
2008 Studies in Computational Intelligence  
Face detection is the foremost task in building vision-based humancomputer interaction systems and in particular in applications such as face recognition, face identification, face tracking, expression  ...  Many approaches for face detection have been proposed.  ...  Neural color constancy based skin detection To detect skin from images, a two stage color constancy based approach is used [2].  ... 
doi:10.1007/978-3-540-76831-9_1 fatcat:r2lmal2vzzfjxgvh6f3hzhzhvm

Husserl on Perceptual Constancy

Michael Madary
2010 European Journal of Philosophy  
Unlike many contemporary theories, this framework gives us a way to understand the relationship between different appearances of the same object.  ...  Husserl developed a sophisticated description of perceptual constancy.  ...  The puzzle of constancy Perceptual constancy leaves us with a puzzle. Say we look at sphere that is uniformly red. (The puzzle generalizes to other properties, but let us focus on color.)  ... 
doi:10.1111/j.1468-0378.2010.00405.x fatcat:7nqdgwb3wjgj7d5usplx6t6msu

The biological significance of color constancy: An agent-based model with bees foraging from flowers under varied illumination

S. Faruq, P. W. McOwan, L. Chittka
2013 Journal of Vision  
to a bee without color constancy).  ...  A bee equipped with trichromatic color vision but no color constancy performed only ;20% better than a color-blind bee (relative to a maximum improvement at 100% for perfect color constancy), whereas the  ...  faces.  ... 
doi:10.1167/13.10.10 pmid:23962735 fatcat:sztkdozbwbb7zmrxnfornsimuy

Detection of Forgery Part in Forgery Image Using Color Intensity

Ms Kopulkar Shital Rangnath
2016 INTERNATIONAL JOURNAL OF EMERGING TRENDS IN SCIENCE AND TECHNOLOGY  
INDEX TERMS-Color constancy, illuminant color, image forensics, machine learning, spliced image detection, texture and edge descriptors  ...  The classification performance using an SVM meta-fusion classifier is promising.  ...  Also, this method does not use strong constraints on illumination, which several existing color constancy methods, such as a blackbody radiator use.  ... 
doi:10.18535/ijetst/v3i02.03 fatcat:wk56tazguvcmxnbvg2adhpoy7u

Untitled Item

Daniel Garside
2019 Figshare  
A novel algorithm for color constancy. International Journal of Computer Vision, 5(1), pp.5-35.  ...  This is not a claim that humans do use this information to achieve colour constancy, but a suggestion that it would be surprising if they ignored such easily available and useful information. -D.  ... 
doi:10.6084/m9.figshare.7868498.v1 fatcat:ck3kvjaod5ehbntli77kbhojaa

INTEL-TAU: A Color Constancy Dataset

Firas Laakom, Jenni Raitoharju, Jarno Nikkanen, Alexandros Iosifidis, Moncef Gabbouj
2021 IEEE Access  
Furthermore, this paper benchmarks several color constancy approaches on the proposed dataset.  ...  INDEX TERMS Color constancy, dataset, illumination estimation, regression. 39560 This work is licensed under a Creative Commons Attribution 4.0 License.  ...  PREVIOUSLY PUBLISHED COLOR CONSTANCY DATASETS One of the most commonly used dataset in color constancy is the ColorChecker dataset [32] .  ... 
doi:10.1109/access.2021.3064382 fatcat:nlxssjjvirdf5ja4fdfaiso3mq

Page 59 of None Vol. 18, Issue 1 [page]

1935 None  
COLOR-CONTRAST AND COLOR-CONSTANCY 59 The function of constancy could therefore be stated by saying that a color which is abnormally illuminated appears changed in the direction of its alleged appearance  ...  Around the plate several different objects all painted with the same color were fastened in irregular order: playing cards, a drawing of a face, a small box.  ... 

Pixel and spatial mechanisms of color constancy

John J. McCann, Carinna E. Parraman, Alessandro Rizzi, Reiner Eschbach, Gabriel G. Marcu, Shoji Tominaga, Alessandro Rizzi
2010 Color Imaging XV: Displaying, Processing, Hardcopy, and Applications  
Color constancy remains an important subject of research on color standards, computer imaging, and human color vision.  ...  Using measurements of constancy with particular attention to reflectance, illumination, and appearance helps us to see the successes and limitations of each constancy approach.  ...  Hurvich attributes color constancy to a chromatic adaptation mechanism using "von Kries Coefficient Law".  ... 
doi:10.1117/12.838736 dblp:conf/clrimg/McCannPR10 fatcat:ycv2mbucxjbvtpgnztig6cibym

Using High-Level Visual Information for Color Constancy

Joost van de Weijer, Cordelia Schmid, Jakob Verbeek
2007 2007 IEEE 11th International Conference on Computer Vision  
The class description is based on texture, position and color information. Experiments show that the use of high-level information improves illuminant estimation over a purely bottom-up approach.  ...  The illuminant resulting in the most likely semantic composition of the image is selected as the illuminant color.  ...  For all four images, classification without the use of any color constancy on the input image completely failed, except for the face image where the grass was recognized but not the face.  ... 
doi:10.1109/iccv.2007.4409109 dblp:conf/iccv/WeijerSV07 fatcat:6aujhupvqzcupf7rrb3tjavdcm

INTEL-TAU: A Color Constancy Dataset [article]

Firas Laakom, Jenni Raitoharju, Alexandros Iosifidis, Jarno Nikkanen, Moncef Gabbouj
2020 arXiv   pre-print
Furthermore, this paper benchmarks several color constancy approaches on the proposed dataset.  ...  Privacy masking is done for sensitive information, e.g., faces. Thus, the dataset is coherent with the new General Data Protection Regulation (GDPR).  ...  PREVIOUSLY PUBLISHED COLOR CONSTANCY DATASETS One of the most commonly used dataset in color constancy is the ColorChecker dataset [32] .  ... 
arXiv:1910.10404v5 fatcat:b4atpqnyjvhfjhcr262tvhr2dq

Page 3718 of Psychological Abstracts Vol. 89, Issue 10 [page]

2002 Psychological Abstracts  
Achromatic settings made under 2 dif- ferent illuminants were used to compute an index that quantified the degree of constancy.  ...  They find that continua running from a black face to a white face do, indeed, show stronger CP effects than continua between 2 black faces or 2 white faces.  ... 
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