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  2. Lavarand - Wikipedia

    en.wikipedia.org/wiki/Lavarand

    Lavarand, also known as the Wall of Entropy, is a hardware random number generator designed by Silicon Graphics that worked by taking pictures of the patterns made by the floating material in lava lamps, extracting random data from the pictures alledgedly using the result to seed a pseudorandom number generator. [1]

  3. SMPTE color bars - Wikipedia

    en.wikipedia.org/wiki/SMPTE_color_bars

    U.S. patent 2,742,525 Color Test Pattern Generator (now expired) was awarded on April 17, 1956, to Larky and Holmes. [9] Later, the EIA published a standard, RS-189A , which in 1976 became EIA-189A , which described a Standard Color Bar Signal, intended for use as a test signal for adjustment of color monitors, adjustment of encoders, and rapid ...

  4. Philips circle pattern - Wikipedia

    en.wikipedia.org/wiki/Philips_circle_pattern

    DK-Audio (also known as DK-Technologies) subsequently released the PT5300, which superseded the PT5230, accepting all of its pattern generator modules and included many new options and features developed by DK-Audio. It was the last physical pattern generator directly descending from the original PM5544 to generate the Philips circle pattern.

  5. Ordered dithering - Wikipedia

    en.wikipedia.org/wiki/Ordered_dithering

    The version on the right shows the effect of quantizing it to 16 colors and dithering using the 8×8 ordered dithering pattern. The characteristic 17 patterns of the 4×4 ordered dithering matrix can be seen clearly when used with only two colors, black and white. Each pattern is shown above the corresponding undithered shade.

  6. Dither - Wikipedia

    en.wikipedia.org/wiki/Dither

    Rather than predictably rounding up or down in a repeating pattern, it is possible to round up or down in a random pattern. If a series of random numbers between 0.0 and 0.9 (ex: 0.6, 0.1, 0.3, 0.6, 0.9, etc.) is generated and added to the 4.8, two times out of ten the result will truncate back to 4 (if 0.0 or 0.1 are added to 4.8) and eight ...

  7. Digital pattern generator - Wikipedia

    en.wikipedia.org/wiki/Digital_pattern_generator

    A digital pattern generator is a piece of electronic test equipment or software used to generate digital electronic stimuli. Digital electronics stimuli are a specific kind of electrical waveform varying between two conventional voltages that correspond to two logic states ("low state" and "high state", "0" and "1").

  8. List of random number generators - Wikipedia

    en.wikipedia.org/wiki/List_of_random_number...

    Random Cycle Bit Generator (RCB) 2016 R. Cookman [35] RCB is described as a bit pattern generator made to overcome some of the shortcomings with Mersenne Twister and short periods/bit length restriction of shift/modulo generators. Middle-Square Weyl Sequence RNG (see also middle-square method) 2017 B. Widynski [36] [37]

  9. Template:Random color - Wikipedia

    en.wikipedia.org/wiki/Template:Random_color

    Returns six instances of {{Random color/Digit}}. If you want to use it more than once on the same page, you need to specify different {{{1}}}s for seeds. If you want to use it more than once on the same page, you need to specify different {{{1}}}s for seeds.