Black and white birds in nature From the pied avocet and white bird to the magpie robin and Oriental ibis. Dr. Pauline Deborah R and Dr. Ridling Margaret Waller on dual-shaded winged beauties ...

Learn how to convert a color image into a high-contrast black and white image using Gradient map and Levels adjustment layer in Photoshop.

Color contrast refers to the difference between the brightness of the background color and foreground color of digital content. Black text on a white background is very high contrast; light grey text ...

Montecito firefighters checking on a report of birds or bats trapped in the chimney of a home in the 100 block of Hermosillo found about 1,000 small birds known as “swifts” trying to escape ...

They argue that increasing the internal visual contrast of wind turbines using achromatic patterns (making them stripy, in other words) should make the skies even safer for birds.