The objective of this thesis work, is to propose an algorithm to detect the faces in a digital image with complex background. A lot of work has already been done in the area of face detection, but drawback of some face detection algorithms is the lack of ability to detect faces with closed eyes and open mouth. Thus facial features form an important basis for detection. The current thesis work focuses on detection of faces based on facial objects. The procedure is composed of three different phases: segmentation phase, filtering phase and localization phase. In segmentation phase, the algorithm utilizes color segmentation to isolate human skin color based on its chrominance properties. In filtering phase, Minkowski addition based object removal (Morphological operations) has been used to remove the non-skin regions. In the last phase, Image Processing and Computer Vision methods have been used to find the existence of facial components in the skin regions.This method is effective on detecting a face region with closed eyes, open mouth and a half profile face. The experiment’s results demonstrated that the detection accuracy is around 85.4% and the detection speed is faster when compared to neural network method and other techniques.

Redeye artifact is the most prevalent problem in the flash photography, especially using compact cameras with built-in flash, which bothers both amateur and professional photographers. Hence, removing the affected redeye pixels has become an important skill. This thesis work presents a completely automatic approach for the purpose of redeye detection and removal and it consists of two modules: detection and correction of the redeye pixels in an individual eye, detection of two red eyes in an individual face.This approach is considered as a combination of some of the previous attempts in the area of redeye removal together with some minor and major modifications and novel ideas. The detection procedure is based on the redness histogram analysis followed by two adaptive methods, general and specific approaches, in order to find a threshold point. The correction procedure is a four step algorithm which does not solely rely on the detected redeye pixels. It also applies some more pixel checking, such as enlarging the search area and neighborhood checking, to improve the reliability of the whole procedure by reducing the image degradation risk. The second module is based on a skin-likelihood detection algorithm. A completely novel approach which is utilizing the Golden Ratio in order to segment the face area into some specific regions is implemented in the second module. The proposed method in this thesis work is applied on more than 40 sample images; by considering some requirements and constrains, the achieved results are satisfactory.

Includes vita. / Title from PDF of title page. / Document formatted into pages; contains 95 pages. / Thesis (Ph.D.)--University of South Florida, 2003. / Includes bibliographical references. / Text (Electronic thesis) in PDF format. / ABSTRACT: A Covariate Structure Model was used to examine a possible relationship between colorism as a component of body image and global psychological functioning in the hypothesized model. Two hundred-fifty-five African-American women were recruited from undergraduate psychology and social work classes to participate in the current study from state and community colleges in the southeastern United States, and from social groups and church organizations. The results indicated that the hypothesized model was not a good fit to the data; therefore, the model was re-evaluated. The results of the analysis of the revised model indicated that the revised model was not plausible. However, the model does suggest that there is a relationship between the body image when the definition includes issues of colorism and psychological functioning as measured by levels of depression and self-esteem. Therefore, the model provides direction to be taken in future research. / System requirements: World Wide Web browser and PDF reader. / Mode of access: World Wide Web.

A Covariate Structure Model was used to examine a possible relationship between colorism as a component of body image and global psychological functioning in the hypothesized model. Two hundred-fifty-five African-American women were recruited from undergraduate psychology and social work classes to participate in the current study from state and community colleges in the southeastern United States, and from social groups and church organizations. The results indicated that the hypothesized model was not a good fit to the data; therefore, the model was re-evaluated. The results of the analysis of the revised model indicated that the revised model was not plausible. However, the model does suggest that there is a relationship between the body image when the definition includes issues of colorism and psychological functioning as measured by levels of depression and self-esteem. Therefore, the model provides direction to be taken in future research.

Automated facial metrology is the science of objective and automatic measurement of the human face. There are many reasons for measuring the human face. Psychologists are interested in determining how humans perceive beauty, and how this is related to facial symmetry [158]. Biologists are interested in the relationship between symmetry and biological fitness [124]. Anthropologists, surgeons, forensic experts, and security professionals can also benefit from automated facial metrology [32, 101, 114]. This thesis investigates the concept of automated facial metrology, presenting original techniques for segmenting 3D range and colour images of the human head, measuring the bilateral symmetry of n-dimensional point data (with particular emphasis on measuring the human head), and extracting the 2D profile of the face from 3D data representing the head. Two facial profile analysis techniques are also presented that are incremental improvements over existing techniques. Extensive literature reviews of skin colour modelling, symmetry detection, symmetry measurement, and facial profile analysis are also included in this thesis. It was discovered during this research that bilateral symmetry detection using principal axes is not appropriate for detecting the mid-line of the human face. An original mid-line detection technique that does not use symmetry, and is superior to the symmetry-based technique, was developed as a direct result of this discovery. There is disagreement among researchers about the effect of ethnicity on skin colour. Some researchers claim that people from different ethnic groups have the same skin chromaticity (hue, saturation) [87, 129, 206], while other researchers claim that different ethnic groups have different skin colours [208, 209]. It is shown in this thesis that people from apparently different ethnic groups can have skin chromaticity that is within the same Gaussian distribution. The chromaticity-based skin colour model used in this thesis has been chosen from the many models previously used by other researchers, and its applicability to skin colour modelling has been justified. It is proven in this thesis that the Mahalanobis distance to the skin colour distribution is Gaussian in both the chromatic and normalised rg colour spaces. Most facial profile analysis techniques use either tangency or curvature to locate anthropometric features along the profile. Techniques based on both approaches have been implemented and compared. Neither approach is clearly superior to the other, but the results indicate that a hybrid technique, combining both approaches, could provide significant improvements. The areas of research most relevant to facial metrology are reviewed in this thesis and original contributions are made to the body of knowledge in each area. The techniques, results, literature reviews, and suggestions presented in this thesis provide a solid foundation for further research and hopefully bring the goal of automated facial metrology a little closer to being achieved.

A presente dissertação tem como objetivo estudar a representação das identidades da comunidade indo-portuguesa nos romances Skin (2001), de Margaret Mascarenhas, e A casa-comboio (2010), de Raquel Uchoa, por meio de uma análise comparativa que focaliza os vínculos estabelecidos entre as personagens e o universo colonial indo-português, bem como de que maneira os narradores enunciam sua ideologia por intermédio dessas conexões. Buscaremos averiguar de que forma esses romances contribuem para fundamentar identidades coloniais distintas, tendo por referência a colonização portuguesa na Índia. / This dissertation aims to discuss the representation of identity of Indo-Portuguese communities depicted in the novels Skin (2001), written by Margaret Mascarenhas, and A casa-comboio (2010), written by Raquel Ochoa. The comparative analysis of these novels will focus on the connections established between the characters and the Indo-Portuguese colonial universe as well as on how the narrators enunciate their ideology. We also intend to investigate how these novels contribute to found distinct colonial identities, taking as reference the Portuguese colonization in India.

Submitted by Maike Costa (maiksebas@gmail.com) on 2016-08-18T13:01:29Z No. of bitstreams: 1 arquivo total.pdf: 1270192 bytes, checksum: fce0a17d43458fa28225174e20e483a0 (MD5) / Made available in DSpace on 2016-08-18T13:01:29Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 1270192 bytes, checksum: fce0a17d43458fa28225174e20e483a0 (MD5) Previous issue date: 2016-02-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This work aims to investigate how skin color and social class interact to predict discrimination. Specifically, we analyse how the information about social class affects the judgment of black and white targets who have committed an offense; whether racial prejudice and class motivate the condemnation of black and poor people, and how the anti-prejudice norm influence this effect. To achieve these goals, we conducted a theoretical study and six empirical research, resulting in three articles that make up this thesis. The first article aims to review the literature on the effects of skin color and social class and the interaction effects of these two dimensions in categorization and social judgment. The literature review indicated the existence of few studies in social psychology of racism that take into account the role of social class in racial discrimination. We proposed that the interaction between skin color and social class is the best way to conceptualize the effects of color and class. In other words, the subtypes formed by the conjunction of color and class are more significant than take in account these categories separately. The second article propose that individuals use information of the socioeconomic status when evaluating the criminal conduct of a person, absolving this person when he is white and condemning this person when he is black. In Study 1 (N = 255) we found that the information of skin color and class affect the judgment of targets. In comparison with control conditions, black low class are more condemned than white low class targets. Study 2 (N = 282) replicates this findings and demonstrated that class and racial prejudice moderated the influence of class and skin color information’s on judgments. Those results contribute to clarify the conjunct effect of skin color and class information on the judgment of targets, and provide first evidence in the differential use of socioeconomic class in social judgments, attenuating the condemnation of white and enhance the condemnation of black targets. The third article evaluate the effect of information about low social class in the social judgment of white and black targets, in contexts where anti-prejudice norm is salient. In four studies, we found that information about the low social class increased compliance with the condemnation of a suspect of committing an offense only when it is described as black. Study 1 (N = 160) indicated that information about low social class increases the condemnation of black but not for white targets. Furthermore, studies 2 (N = 170) and 3 (N = 176) showed that the antidiscrimination norm inhibits the condemnation of black target only when the information about social class is not provided. When information about skin color and social are available, low social class blacks targets are more discriminated (Study 4; N = 134). The results suggest that information about low social class negatively affects the social judgment of black (but not whites) targets because social class can serve as non-prejudiced justification for racial discrimination. Taken together, the results obtained in this thesis indicate that information about lower social class is used in a differential way in the social judgment of blacks and whites targets, increasing the condemnation only for black targets. Information about social class has a supporting effect, but very important in social judgment about white and black people, because it facilitates social support to condemn black people who have committed crimes. / Esta tese teve por objetivo geral examinar como a cor da pele e a classe social interagem para predizer a discriminação. Especificamente, analisamos como a informação sobre a classe social afeta o julgamento que se faz de pessoas negras e brancas que cometeram um delito; avaliamos se o preconceito racial e de classe motivam a condenação de pessoas negras e de pessoas pobres, e estudamos como a norma antipreconceito atua neste processo. Para alcançar estes objetivos, realizamos um estudo teórico e seis pesquisas empíricas, resultando em três artigos que compõem esta tese. O objetivo do primeiro artigo foi fazer uma revisão teórica sobre os efeitos da cor da pele e da classe social e da interação entre estas duas dimensões, na categorização e julgamento social de alvos. A revisão da literatura indicou que ainda são poucos os estudos na psicologia social que têm em conta o papel desempenhado pela classe social na discriminação. É proposto que a interação entre a cor da pele e a classe social é a melhor maneira de conceituar os efeitos da cor e da classe. Ou seja, os subtipos formados pela conjunção entre a cor e a classe são mais significativos do que ter em conta estas categorias separadamente. O segundo artigo propõe a hipótese de que os indivíduos usam a informação sobre a classe socioeconômica quando avaliam o comportamento delituoso de uma pessoa, absolvendo-a quando é branca e condenando-a quando é negra. No Estudo 1 (N = 255) manipulamos a informação sobre a cor da pele e a classe do alvo e verificamos que os participantes condenam menos os alvos brancos e mais os alvos negros de classe baixa. O Estudo 2 (N = 282) replica os resultados anteriores e demonstra que o uso enviesado da informação sobre a classe social é motivado pelo preconceito de cor e de classe. Estes resultados contribuem para esclarecer o efeito conjunto das informações sobre a cor e a classe social no julgamento de alvos e representam uma primeira evidência do uso diferencial da informação sobre a classe baixa, que atenua a condenação do alvo branco e aumenta do alvo negro. O terceiro artigo objetivou elucidar o papel da informação sobre a classe baixa no julgamento social de alvos brancos e negros em contextos onde a norma antipreconceito está ativa. Em quatro estudos verificamos que a informação sobre a classe baixa aumentou a concordância com a condenação à prisão de um suspeito de cometer um delito apenas quando este é descrito como negro. O estudo 1 (N = 160) indicou que a informação sobre a classe socioeconômica baixa aumenta o suporte à condenação do alvo negro, mas não do branco. Além disso, os estudos 2 (N = 170) e 3 (N = 176) mostraram que a norma antipreconceito inibe a discriminação do alvo negro apenas quando a classe social não está saliente, pois quando ambas as categorias estão salientes, os alvos negros de classe baixa são mais discriminados (Estudo 4; N = 134). Os resultados sugerem que a classe social afeta negativamente o julgamento de alvos negros (mas não dos brancos) porque pode funcionar como justificação não racista para a discriminação. Em conjunto, os resultados obtidos nesta tese indicam que a informação sobre classe baixa é utilizada de forma diferencial no julgamento de negros e brancos, aumentando a concordância com a condenação apenas para os alvos negros. A informação sobre a classe social tem um efeito coadjuvante, porém muito importante no julgamento social sobre pessoas brancas e negras na medida em que facilita o apoio social à condenação de pessoas negras que cometeram delitos.

Face detection refers to a number of techniques that identify faces in images and videos. As part of the senior project exercise at Pomona College, I explore the process of face detection using a JavaScript library called CLMtrackr. CLMtrackr works in any browser and detects faces within the video stream captured by a webcam. The focus of this paper is to explore the shortcomings in the inclusivity of the CLMtrackr library and consequently that of face detection. In my research, I have used two datasets that contain human faces with diverse backgrounds, in order to assess the accuracy of CLMtrackr. The two datasets are the MUCT and PPB. In addition, I investigate whether skin color is a key factor in determining face detection's success, to ascertain where and why a face might not be recognized within an image. While my research and work produced some inconclusive results due to a small sample size and a couple outliers in my outputs, it is clear that there is a trends toward the CLMtrackr algorithm recognizing faces with lighter skin tones more often than darker ones.

Intersectional analyses have made clear that Black women as a group fare far worse in employment outcomes than their race and gender counterparts. However, there is little research that examines differences among Black women. The purpose of this dissertation is to examine how Black women are perceived intra-intersectionally, or within the intersection of race and gender. Black women are not monolithic and it is important to illuminate how they are perceived differently from one another. This dissertation explores the effects of differences in skin tone and hair texture among Black women seeking a management position. It was hypothesized that Black women with lighter skin and/or straight hair would be characterized more positively than Black women with darker skin and/or kinky hair; this hypothesis was not supported. However, for negative characteristics, the hypothesis that Black women with darker skin would be characterized more negatively than Black women with lighter skin was confirmed. Further, it was found that hair texture significantly interacts with skin tone such that darker-skinned Black women with kinky hair were characterized more negatively than light-skinned women with kinky hair. There were no significant differences found between the skin tone and hair texture of Black women on salary offers, but there was a marginally significant skin tone effect for perceptions of success in that lighter-skinned Black women are perceived to be more successful than darker-skinned Black women. This study sheds light on the need to look at the intersection of both skin tone and hair texture in order to fully understand how negative stereotypes apply to Black women.

This paper is a by-product of a minor field study conducted in Zanzibar, Tanzaniaduring eight consecutive weeks in early 2019. The purpose of the study was to examinehow colorism affects women’s identity and ethnicity construction through the researchquestions; how do women in Zanzibar experience colorism in their daily lives and; howdoes colorism affect their self-perception? The data was collected through seven semi-structured interviews with women in Zanzibar and observations. The concepts of identity and ethnicity saturated the study and the identity process theory (IPT) was used as a theoretical framework to analyze the inquiry. The findings suggest that colorist ideals were dominant in society as light and medium colors were more valued than dark. This was demonstrated by associating light and medium skin color, as well as relaxed and straight hair to “good” and “beautiful”. However, colorism proved to impact women in their daily lives to various degrees. Informants who grew up on the mainland admitted to being more affected and expressed feelings of unworthiness or praise, depending on skin color. Whereas women born and raised on Zanzibar, felt colorism affected their lives minimally, but nevertheless acknowledged the existing problems for many women of e.g. skin bleaching. According to the IPT, a strong sense of distinctiveness from mainlanders, a continuity in past and present identity and a highself-efficacy seemed to guard self-esteem against existing colorist ideals. Furthermore, inclusion to the Zanzibari ethnic identity proved not to be affected by colorism, as colorwas not a prerequisite factor to ethnicity but rather, shared land, religion, and history.