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  2. Channel (digital image) - Wikipedia

    en.wikipedia.org/wiki/Channel_(digital_image)

    A channel in this context is the grayscale image of the same size as a color image, [citation needed] made of just one of these primary colors. For instance, an image from a standard digital camera will have a red, green and blue channel. A grayscale image has just one channel.

  3. Color balance - Wikipedia

    en.wikipedia.org/wiki/Color_balance

    The color balance operations in popular image editing applications usually operate directly on the red, green, and blue channel pixel values, [1] [2] without respect to any color sensing or reproduction model. In film photography, color balance is typically achieved by using color correction filters over the lights or on the camera lens. [3]

  4. RGB color model - Wikipedia

    en.wikipedia.org/wiki/RGB_color_model

    Initially, the limited color depth of most video hardware led to a limited color palette of 216 RGB colors, defined by the Netscape Color Cube. The web-safe color palette consists of the 216 (6 3 ) combinations of red, green, and blue where each color can take one of six values (in hexadecimal ): #00, #33, #66, #99, #CC or #FF (based on the 0 ...

  5. Bayer filter - Wikipedia

    en.wikipedia.org/wiki/Bayer_filter

    The repeating 6×6 grid used in the x-trans sensor. The Fujifilm X-Trans CMOS sensor used in many Fujifilm X-series cameras is claimed [13] to provide better resistance to color moiré than the Bayer filter, and as such they can be made without an anti-aliasing filter. This in turn allows cameras using the sensor to achieve a higher resolution ...

  6. Grayscale - Wikipedia

    en.wikipedia.org/wiki/Grayscale

    Here is an example of color channel splitting of a full RGB color image. The column at left shows the isolated color channels in natural colors, while at right there are their grayscale equivalences: Composition of RGB from three grayscale images. The reverse is also possible: to build a full-color image from their separate grayscale channels.

  7. NTSC - Wikipedia

    en.wikipedia.org/wiki/NTSC

    The first color NTSC television camera was the RCA TK-40, used for experimental broadcasts in 1953; an improved version, the TK-40A, introduced in March 1954, was the first commercially available color television camera. Later that year, the improved TK-41 became the standard camera used throughout much of the 1960s.

  8. Color depth - Wikipedia

    en.wikipedia.org/wiki/Color_depth

    Using 16 bits per color channel produces 48 bits, 281,474,976,710,656 colors. ... In addition, digital cameras are able to produce 10 or 12 bits per channel in their ...

  9. Analog television - Wikipedia

    en.wikipedia.org/wiki/Analog_television

    A channel actually consists of two signals: the picture information is transmitted using amplitude modulation on one carrier frequency, and the sound is transmitted with frequency modulation at a frequency at a fixed offset (typically 4.5 to 6 MHz) from the picture signal. The channel frequencies chosen represent a compromise between allowing ...