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  2. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    Dodging lightens an image, while burning darkens it. Dodging the image is the same as burning its negative (and vice versa). Dodge 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 ...

  3. 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 ...

  4. Computer graphics lighting - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics_lighting

    Without lighting models, replicating lighting effects as they occur in the natural world would require more processing power than is practical for computer graphics. [14] This lighting, or illumination model's purpose is to compute the color of every pixel or the amount of light reflected for different surfaces in the scene. [15]

  5. Full screen effect - Wikipedia

    en.wikipedia.org/wiki/Full_screen_effect

    The speed of applying a full screen effect is independent of the complexity of the image. In 3D rendering applications such as video games, common full screen effects include color filters, depth of field, and full screen bloom. A color filter, for example, may desaturate an image or convert it to grayscale.

  6. Color balance - Wikipedia

    en.wikipedia.org/wiki/Color_balance

    This captures an image of the ambient light, which enables a digital camera to set the correct color balance for that light. There is a large literature on how one might estimate the ambient lighting from the camera data and then use this information to transform the image data.

  7. Gamma correction - Wikipedia

    en.wikipedia.org/wiki/Gamma_correction

    Some picture formats allow an image's intended gamma (of transformations between encoded image samples and light output) to be stored as metadata, facilitating automatic gamma correction. The PNG specification includes the gAMA chunk for this purpose [ 14 ] and with formats such as JPEG and TIFF the Exif Gamma tag can be used.

  8. If It Seems Like Everyone Has Norovirus, It's Because They ...

    www.aol.com/seems-everyone-norovirus-because...

    Stock image of toilet paper rolls in a bathroom. Cases of norovirus — the virulent, wildly contagious virus that causes vomiting and diarrhea — are increasing in the U.S., ...

  9. Grayscale - Wikipedia

    en.wikipedia.org/wiki/Grayscale

    Grayscale images have many shades of gray in between. Grayscale images can be the result of measuring the intensity of light at each pixel according to a particular weighted combination of frequencies (or wavelengths), and in such cases they are monochromatic proper when only a single frequency (in practice, a narrow band of frequencies) is ...