نتایج جستجو برای: color contrast

تعداد نتایج: 506497  

2014
Neethu Simon Ajay Kumar

Color images provide large information for human visual perception compared to grayscale images. Color image enhancement methods enhance the visual data to increase the clarity of the color image. It increases human perception of information. Different color image contrast enhancement methods are used to increase the contrast of the color images. The Retinex algorithms enhance the color images ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1392

in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...

Journal: :Computers and Electronics in Agriculture 2022

• A contrast-optimization approach was proposed for plant segmentation of color images. Contrast-enhanced images were compared with index using five image datasets. The method consistently enhanced contrast and accuracy. None nine common indices robust enough to varying conditions. Plant is a crucial task in computer vision applications identification/classification quantification phenotypic fe...

Journal: :Comput. Graph. Forum 2009
Radoslaw Mantiuk Rafal Mantiuk Anna Lewandowska Wolfgang Heidrich

Tone mapping algorithms offer sophisticated methods for mapping a real-world luminance range to the luminance range of the output medium but they often cause changes in color appearance. In this work we conduct a series of subjective appearance matching experiments to measure the change in image colorfulness after contrast compression and enhancement. The results indicate that the relation betw...

2016
Tomohisa MATSUMOTO Kazuho FUKUDA Keiji UCHIKAWA

We investigated categorical regions and appearances of gold, silver and copper color, and glossiness for CG spheres with various chromaticities, lightnesses, and contrast glosses. It was found that the chromaticity regions of brown and yellow changed into gold color, those of gray and black into silver color, and a part of brown region changed into copper color with increase of contrast gloss. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید