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The Photoshop and illusions.hu flavors also produce the same result when the top layer is pure white (the differences between these two are in how one interpolates between these 3 results). These three results coincide with gamma correction of the bottom layer with γ=2 (for top black), unchanged bottom layer (or, what is the same, γ=1; for ...
The test chart shows the full 256 levels of the red, green, and blue (RGB) primary colors and cyan, magenta, and yellow complementary colors, along with a full 256-level grayscale. Gradients of RGB intermediate colors (orange, lime green, sea green, sky blue, violet, and fuchsia), and a full hue spectrum are also present.
A linear, or axial, color gradient. In color science, a color gradient (also known as a color ramp or a color progression) specifies a range of position-dependent colors, usually used to fill a region. In assigning colors to a set of values, a gradient is a continuous colormap, a type of color scheme.
The pixels with the largest gradient values in the direction of the gradient become edge pixels, and edges may be traced in the direction perpendicular to the gradient direction. One example of an edge detection algorithm that uses gradients is the Canny edge detector. Image gradients can also be used for robust feature and texture matching.
Unlike the simple depth planes created by simple wallpaper autostereograms, subtle changes in spacing specified by the depth map can create the illusion of smooth gradients in distance. This is possible because the grayscale depth map allows individual pixels to be placed on one of 2 n depth planes, where n is the number of bits used by each ...
Vignetting is generally regarded as true light fall-off due to physical phenomena (eg obstruction of lens, etc) though, not a darkening of the image periphery in photoshop. I know the end-product is basically the same visually, but I think a real-world example of vignetting is more appropriate for the article than a synthesis.
I've made some edits to the photo. Ran it through auto contrast/level/colour in Photoshop and rotated it 0.5 degrees clockwise. Enochlau 13:10, 17 December 2005 (UTC) Oppose. The sky looks great, but it dominates the image and places much of the stand in shadow. Warofdreams talk 18:02, 19 December 2005 (UTC) Oppose. The stands are too dark, and ...
Gilded frame ready for burnishing with an agate stone tool Application of gold leaf to a reproduction of a 15th-century panel painting. Gilding is a decorative technique for applying a very thin coating of gold over solid surfaces such as metal (most common), wood, porcelain, or stone. [1]
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