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On the left, an intensity image of a cat. In the center, a gradient image in the x direction measuring horizontal change in intensity. On the right, a gradient image in the y direction measuring vertical change in intensity. Gray pixels have a small gradient; black or white pixels have a large gradient.
The contrast ranges from black at the weakest intensity to white at the strongest. [1] Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called bilevel or binary images). Grayscale images have many shades of gray in between.
A digital image is an image composed of picture elements, also known as pixels, each with finite, discrete quantities of numeric representation for its intensity or gray level that is an output from its two-dimensional functions fed as input by its spatial coordinates denoted with x, y on the x-axis and y-axis, respectively. [1]
In 1844, David Brewster discovered the "wallpaper effect". [5] He noticed that when he stared at repeated patterns in wallpapers while varying his vergence, he could see them either behind the wall (with wall-eyed vergence) or in front of the wall (with cross-eyed vergence). [6] This is the basis of wallpaper-style autostereograms. [3]
For display on computers, technology such as the animated GIF and Flash animation were developed. In addition to short films, feature films, television series, animated GIFs, and other media dedicated to the display of moving images, animation is also prevalent in video games, motion graphics, user interfaces, and visual effects. [1]
Bliss, originally titled Bucolic Green Hills, is the default wallpaper of Microsoft's Windows XP operating system. It is a photograph of a green rolling hills and daytime sky with cirrus clouds . Charles O'Rear , a former National Geographic photographer, took the photo in January 1998 near the Napa – Sonoma county line, California, after a ...
A stray dog who lives on the streets and becomes Lady's love interest. Trixie Heeler Bluey: White Heeler: Stripe's wife, Bluey & Bingo's paternal aunt Two Curious Puppies: Merrie Melodies: Boxer: A golden boxer with brown ears and a cocker spaniel, white with black patches and a docked tail. They are part-time friends and part-time opponents ...
Her hair is black with a white headband. The Chief (voiced by Daran Norris) is a good-natured flea who leads T.U.F.F. HQ. Keswick (voiced by Jeff Bennett) is a prairie dog who is a scientist and inventor. Also in T.U.F.F. are various personnel that appear as background characters whether as agents, office workers, and/or scientists.