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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 貝蘇章(Soo-Chang Pei) | |
dc.contributor.author | Joost Kuckartz | en |
dc.contributor.author | 古卡茲 | zh_TW |
dc.date.accessioned | 2021-06-15T04:13:02Z | - |
dc.date.available | 2010-02-04 | |
dc.date.copyright | 2010-02-04 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-01-22 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45298 | - |
dc.description.abstract | Correlated color temperature is the temperature of a Planckian radiator which perceived color closely resembles that of a test stimulus. The International Commission on Illumination (CIE) has defined this measurement as being valid under specified viewing conditions and with the test stimulus being of the same brightness as the point of the Planckian radiator. The current method for calculation of the correlated color temperature dates back to 1968 and is based on an obsolete color space which is nowadays not used for any other calculations. The color space is valid for any viewing condition and the brightness is unknown.
Color appearance models use viewing conditions and input stimuli to model perceived appearance. Correlates which include brightness and hue are mathematically defined. These parameters are exactly the requirement of the CIE definition for correlated color temperature but are currently not used in the calculation. In this research the definition of color temperature from the Planckian blackbody equation is used to find their locations in color appearance models. Given the blackbody locus as test stimulus different input situations are tested and the models' outputs are compared. Finally a method for calculating the correlated color temperature in any color appearance model is given which conforms much closer to the CIE definition. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T04:13:02Z (GMT). No. of bitstreams: 1 ntu-99-R96942132-1.pdf: 8766885 bytes, checksum: b0dbc6483cab0950044586d2b76c55df (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 1 Introduction 5
2 From Vision to Color Appearance 7 2.1 Vision system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Colorimetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3 Color Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Chromatic Adaptation Modeling 14 3.1 The Basis of Appearance Modeling . . . . . . . . . . . . . . . . . . 14 3.2 Von Kries Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.3 Nayatani et al. Model . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.4 Guth’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.5 Fairchild’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4 Color Appearance Models 18 4.1 CIELAB Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 19 4.1.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 20 4.2 Nayatani et al. Model . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.2.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.2.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.2.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 23 4.2.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 24 4.3 Hunt Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.3.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.3.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.3.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 29 4.3.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 32 4.4 ATD Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.4.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.4.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.4.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 34 4.4.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 34 4.5 RLAB Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.5.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.5.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.5.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 37 4.5.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 37 4.6 LLAB Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.6.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.6.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.6.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 40 4.6.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 40 4.7 ZLAB Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.7.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.7.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.7.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 42 4.7.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 43 4.8 CIECAM97s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 4.8.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 4.8.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 45 4.8.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 47 4.8.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 48 4.9 CIECAM02 Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4.9.1 Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4.9.2 Model Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 52 4.9.3 Correlates Calculation . . . . . . . . . . . . . . . . . . . . . 54 4.9.4 Predicted Eects and Usage . . . . . . . . . . . . . . . . . . 56 4.10 Selection of a Model . . . . . . . . . . . . . . . . . . . . . . . . . . 59 4.11 Model Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 5 Color Temperature 62 5.1 Wavelength Dependency on Color . . . . . . . . . . . . . . . . . . . 62 5.2 Correlated Color Temperature . . . . . . . . . . . . . . . . . . . . . 63 5.3 Calculation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . 65 5.4 The best definition? . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 6 Research results 69 6.1 Model’s Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 6.2 Blackbody Locus in Color Appearance Models . . . . . . . . . . . . 74 6.3 Correlated Color Temperature Equations in Color Appearance Models 87 6.4 Correlated Color Temperature and Images . . . . . . . . . . . . . . . 99 6.5 Program development . . . . . . . . . . . . . . . . . . . . . . . . . . 106 7 Conclusion and Recommendations 108 7.1 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 7.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Bibliography 111 List of Figures 115 List of Tables 117 A Standard simulation values 119 B Typical values 122 | |
dc.language.iso | en | |
dc.title | Correlated Color Temperature in Color Appearance Models | zh_TW |
dc.type | Thesis | |
dc.date.schoolyear | 98-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 鍾國亮(Kuo-Liang Chung),傅楸善(Chiou-Shann Fuh),李枝宏(Ju-Hong Lee) | |
dc.subject.keyword | Color Appearance Model,Correlated Color Temperature,CIELAB,Nayatani et. al. Model,Hunt Model,ATD,RLAB,LLAB,ZLAB,CIECAM97s,CIECAM02, | zh_TW |
dc.relation.page | 123 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-01-22 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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