NATURAL COLORS IN INDIAN SOCIAL TRADITION

Natural radioactivity in Indian vegetation samples

Background: Vegetation (food stuff) is grown in soil that contains many radioactive elements such as 238U (uranium), 232Th (thorium) and 40K (potassium), which may get deposited either due to radioactive fallout or/and by absorption from the soil and can pose serious health hazards. Materials and Methods: Natural radioactivity, radiological hazards and annual effective dose assessment was carri...

Rendering Iridescent Colors Appearing on Natural Objects

Iridescent colors appearing on natural objects, such as the feathers of a hummingbird, surfaces inside seashells, and shells of beetles, are beautiful and impressive. The cause of such iridescent colors is interference of light inside multilayer film structures covering the natural objects. This paper proposes a method for realistically rendering iridescent colors appearing on natural surfaces,...

Natural Dyes, Our Global Heritage of Colors

Learning Natural Colors for Image Recoloring

We present a data-driven method for automatically recoloring a photo to enhance its appearance or change a viewer’s emotional response to it. A compact representation called a RegionNet summarizes color and geometric features of image regions, and geometric relationships between them. Correlations between color property distributions and geometric features of regions are learned from a database...

Social Interpretations of Nazism: Renewing a Tradition

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