نتایج جستجو برای: color inconstancy index

تعداد نتایج: 512218  

Journal: :Journal of the Illuminating Engineering Institute of Japan 1998

1997
Alexander Dimai

While histogram or global feature approaches are powerful methods to encode image information for retrieval purposes, they suffer from a complete lack of spatial information. One possibility to reduce this shortcoming is to store feature vectors of subregions. However, this procedure increases the size of the index vector. The paper suggests to store only the differences of the features between...

2017
Xiaolong Zhu Wei Yan Uriel Levy N Asger Mortensen Anders Kristensen

Man-made structural colors, which originate from resonant interactions between visible light and manufactured nanostructures, are emerging as a solution for ink-free color printing. We show that non-iridescent structural colors can be conveniently produced by nanostructures made from high-index dielectric materials. Compared to plasmonic analogs, color surfaces with high-index dielectrics, such...

Journal: :Archives of Internal Medicine 1914

Journal: :Vision Research 1999
Christopher P Benton Alan Johnston

In this study, we show that negative polarity noise patterns appear to have a higher contrast than positive polarity noise patterns with identical expected Fourier amplitude spectra. This demonstrates a failure of contrast constancy over changes in pattern polarity. An examination of local contrast measures shows that negative polarity noise has a wider distribution of local contrast values tha...

Journal: :journal of chemical health risks 0
h. safari maznabi msc student, food science and technology division, faculty of agriculture, damghan branch, islamic azad university, damghan, iran a. reza mohammadinafchi biopolymer research group, food science and technology division, faculty of agriculture, damghan branch, islamic azad university, damghan, iran

barrier properties are one of the most important factors in the edible film. in this study, edible mungbean films were prepared containing (0%, 15%, 30%, 45%) concentrations of rosemary aqueous extract. then the effect of rosemary was investigated on colorimetric and barrier properties (water vapor permeability, oxygen permeability). rosemary extract increased the absorption of color in the vis...

Journal: :مهندسی بیوسیستم ایران 0
حمیده سپردار دانش آموخته کارشناسی ارشد علوم و صنایع غذایی،گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد شهرکرد ابراهیم رحیمی دانشیار، گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه آزاداسلامی واحد شهرکرد ایمان شهابی قهفرخی استادیار گروه علوم و صنایع غذایی-دانشگاه زنجان

in the past decades, environmental pollution caused by plastic packing materials, restrictions of petroleum resources and their high price attracted many researchers to produce biodegradable packaging materials. poor mechanic properties and high water vapor permeability are two main defects of biodegradable polymers. nanotechnology is a modification method in this case. in the current study, th...

Journal: :Journal of Asian Architecture and Building Engineering 2020

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