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  2. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    The Screen blend mode inverts both layers, multiplies them, and then inverts that result. The Color Dodge blend mode divides the bottom layer by the inverted top layer. This lightens the bottom layer depending on the value of the top layer: the brighter the top layer, the more its color affects the bottom layer.

  3. Perspective distortion - Wikipedia

    en.wikipedia.org/wiki/Perspective_distortion

    Consider an idealised Gaussian optical system, with the image and the object in the same medium.Thus, for an object in focus, the distance between the lens and image plane , the distance between lens and the object , and the focal length are related by the thin-lens equation:

  4. Exit status - Wikipedia

    en.wikipedia.org/wiki/Exit_status

    In Unix and other POSIX-compatible systems, the parent process can retrieve the exit status of a child process using the wait() family of system calls defined in wait.h. [10] Of these, the waitid() [11] call retrieves the full exit status, but the older wait() and waitpid() [12] calls retrieve only the least significant 8 bits of the exit status.

  5. Adobe Photoshop - Wikipedia

    en.wikipedia.org/wiki/Adobe_Photoshop

    Adobe Photoshop is a raster graphics editor developed and published by Adobe for Windows and macOS.It was created in 1987 by Thomas and John Knoll.It is the most used tool for professional digital art, especially in raster graphics editing, and its name has become genericised as a verb (e.g. "to photoshop an image", "photoshopping", and "photoshop contest") [7] although Adobe disapproves of ...

  6. Photoshop contest - Wikipedia

    en.wikipedia.org/wiki/Photoshop_contest

    A Photoshop contest, or sometimes Photoshop battle (often abbreviated to PS Battle), is an online game, in which a website or user of an Internet forum will post a starting image — usually a photograph — and ask others to manipulate the image using some graphics editing software, usually Adobe Photoshop, however other editors are commonly allowed, such as Corel Photo-Paint, GIMP, PaintShop ...

  7. Wood warping - Wikipedia

    en.wikipedia.org/wiki/Wood_warping

    bow: a warp along the length of the face of the wood; crook: a warp along the length of the edge of the wood; kink: a localized crook, often due to a knot; cup: a warp across the width of the face, in which the edges are higher or lower than the center of the wood; twist or wind: a distortion in which the two ends do not lie on the same plane.

  8. Curved screen - Wikipedia

    en.wikipedia.org/wiki/Curved_screen

    A curved screen is an electronic display device that, contrasting with the flat-panel display, features a concave viewing surface.Curved screen TVs were introduced to the consumer market in 2013, primarily due to the efforts of Korean companies Samsung and LG, [1] [2] while curved screen projection displays, such as the Cinerama, have existed since the 1950s.

  9. 2001: A Space Odyssey - Wikipedia

    en.wikipedia.org/wiki/2001:_A_Space_Odyssey

    2001: A Space Odyssey is a 1968 epic science fiction film produced and directed by Stanley Kubrick.The screenplay was written by Kubrick and Arthur C. Clarke.Its plot was inspired by several short stories optioned from Clarke, primarily "The Sentinel" (1951) and "Encounter in the Dawn" (1953). [3]