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  2. Gradient-domain image processing - Wikipedia

    en.wikipedia.org/wiki/Gradient-domain_image...

    The gradient is obtained from an existing image and modified for image editing purposes. Various operators, such as finite difference or Sobel, can be used to find the gradient of a given image. This gradient can then be manipulated directly to produce several different effects when the resulting image is solved for.

  3. Image gradient - Wikipedia

    en.wikipedia.org/wiki/Image_gradient

    Two types of gradients, with blue arrows to indicate the direction of the gradient. Light areas indicate higher pixel values A blue and green color gradient. An image gradient is a directional change in the intensity or color in an image. The gradient of the image is one of the fundamental building blocks in image processing.

  4. Bliss (photograph) - Wikipedia

    en.wikipedia.org/wiki/Bliss_(photograph)

    The photograph depicts a lush green rolling hill with cirrus clouds during a daytime sky, with mountains far in the background. [ 1 ] [ 2 ] It was taken by Charles O'Rear , a former National Geographic photographer and resident of St. Helena , California, in the Napa Valley region north of San Francisco, while on his way to visit his girlfriend ...

  5. Template:Linear-gradient background - Wikipedia

    en.wikipedia.org/wiki/Template:Linear-gradient...

    Displays a background using multiple colors which gradually phases from one color to another. Template parameters [Edit template data] Parameter Description Type Status Background color 1 1 First background color Suggested values #000000 Line optional Background color 2 2 Second background color Suggested values #000000 Line optional Background color 3 3 Third background color Suggested values ...

  6. Demosaicing - Wikipedia

    en.wikipedia.org/wiki/Demosaicing

    Spectral correlation is the dependency between the pixel values of different color planes in a small image region. These algorithms include: Variable Number of Gradients (VNG) [6] interpolation computes gradients near the pixel of interest and uses the lower gradients (representing smoother and more similar parts of the image) to make an estimate.

  7. Perlin noise - Wikipedia

    en.wikipedia.org/wiki/Perlin_noise

    Two-dimensional slice through 3D Perlin noise at z = 0. Perlin noise is a type of gradient noise developed by Ken Perlin in 1983. It has many uses, including but not limited to: procedurally generating terrain, applying pseudo-random changes to a variable, and assisting in the creation of image textures.

  8. 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:

  9. Comparison of vector graphics editors - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_vector...

    Boxy SVG is a chromium-based vector graphics editor for creating illustrations, as well as logos, icons, and other elements of graphic design. It is primarily focused on editing drawings in the SVG file format. The program is available as both a web app and a desktop application for Windows, macOS, ChromeOS, and Linux-based operating systems.