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  2. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    This is the same as inverting each layer, adding them together (as in Linear Dodge), and then inverting the result. Blending with white leaves the image unchanged. Vivid Light: this blend mode combines Color Dodge and Color Burn (rescaled so that neutral colors become middle gray). Dodge applies when values in the top layer are lighter than ...

  3. Computer graphics lighting - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics_lighting

    Computer graphics lighting is the collection of techniques used to simulate light in computer graphics scenes. While lighting techniques offer flexibility in the level of detail and functionality available, they also operate at different levels of computational demand and complexity .

  4. Bloom (shader effect) - Wikipedia

    en.wikipedia.org/wiki/Bloom_(shader_effect)

    Bloom (sometimes referred to as light bloom or glow) is a computer graphics effect used in video games, demos, and high-dynamic-range rendering (HDRR) to reproduce an imaging artifact of real-world cameras. The effect produces fringes (or feathers) of light extending from the borders of bright areas in an image, contributing to the illusion of ...

  5. Nik Collection - Wikipedia

    en.wikipedia.org/wiki/Nik_Collection

    Nik Sharpener and Nik Color Efex were developed by Nik Multimedia Inc. [1] in the 1990s as digital photo filters that could be used in Photoshop or as standalone applications. Some years later, in 2003, Dfine 1.0, a denoising application and plugin was added to the list of products on offer. [2]

  6. Raster graphics editor - Wikipedia

    en.wikipedia.org/wiki/Raster_graphics_editor

    Advanced raster editors, like GIMP and Adobe Photoshop, use vector methods (mathematics) for general layout and elements such as text, but are equipped to deal with raster images down to the pixel and often have special capabilities in doing so, such as brightness/contrast, and even adding "lighting" to a raster image or photograph.

  7. Global illumination - Wikipedia

    en.wikipedia.org/wiki/Global_illumination

    Global illumination [1] (GI), or indirect illumination, is a group of algorithms used in 3D computer graphics that are meant to add more realistic lighting to 3D scenes. Such algorithms take into account not only the light that comes directly from a light source (direct illumination), but also subsequent cases in which light rays from the same source are reflected by other surfaces in the ...

  8. Volumetric lighting - Wikipedia

    en.wikipedia.org/wiki/Volumetric_lighting

    In volumetric lighting, the light cone emitted by a light source is modeled as a transparent object and considered as a container of a "volume". As a result, light has the capability to give the effect of passing through an actual three-dimensional aerosol (e.g. fog, dust, smoke, or steam) that is inside its volume, just like in the real world.

  9. Image editing - Wikipedia

    en.wikipedia.org/wiki/Image_editing

    Image editors may feature a number of algorithms which can add or remove noise in an image. Some JPEG artifacts can be removed; dust and scratches can be removed and an image can be de-speckled. Noise reduction merely estimates the state of the scene without the noise and is not a substitute for obtaining a "cleaner" image.

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