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  2. Teleprompter - Wikipedia

    en.wikipedia.org/wiki/Teleprompter

    The text is usually displayed in white letters on a black background for the best readability, while cues are in inverse video (black on white). Difficult words (mainly international names) are spelled out phonetically , [ 23 ] as are other particulars like "Nine-eleven" (to specify that the event 9/11 should not be pronounced " nine-one-one ...

  3. Chroma key - Wikipedia

    en.wikipedia.org/wiki/Chroma_key

    Chroma key is achieved by comparing the phase of the video to the phase corresponding to the pre-selected colour. In-phase portions of the video are replaced by the alternate background video. [citation needed] In digital colour TV, colour is represented by three numbers (red, green, blue intensity levels). Chroma key is achieved by a simple ...

  4. Reverse video - Wikipedia

    en.wikipedia.org/wiki/Reverse_video

    Reverse video (or invert video or inverse video or reverse screen) is a computer display technique whereby the background and text color values are inverted. On older computers, displays were usually designed to display text on a black background by default. For emphasis, the color scheme was swapped to bright background with dark text.

  5. Grayscale - Wikipedia

    en.wikipedia.org/wiki/Grayscale

    The contrast ranges from black at the weakest intensity to white at the strongest. [1] Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called bilevel or binary images). Grayscale images have many shades of gray in between.

  6. Uncommon Signs of Diabetes Doctors Want You to Know - AOL

    www.aol.com/uncommon-signs-diabetes-doctors-want...

    Endocrinologists share uncommon symptoms of diabetes that may indicate type 1, type 2, or prediabetes. Some signs include infections and dry skin.

  7. Presentation - Wikipedia

    en.wikipedia.org/wiki/Presentation

    For example, black words on a white background emphasize the text being displayed but still helps maintain its readability. [11] Text that contrasts with the background of a slide also enhances visibility. Readability and visibility enhance a presentation experience, which contributes to the effectiveness of it.

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