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  2. Contrast ratio - Wikipedia

    en.wikipedia.org/wiki/Contrast_ratio

    An LCD technology is dynamic contrast (DC), also called advanced contrast ratio (ACR), and smart contrast ratio (SCR [4]) and various other designations.When there is a need to display a dark image, a display that supports dynamic contrast underpowers the backlight lamp (or decreases the aperture of the projector's lens using an iris), but proportionately amplifies the transmission through the ...

  3. Contrast-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Contrast-to-noise_ratio

    Contrast-to-noise ratio ( CNR) [ 1] is a measure used to determine image quality. CNR is similar to the metric signal-to-noise ratio (SNR), but subtracts a term before taking the ratio. This is important when there is a significant bias in an image, such as from haze. [ 2] As can be seen in the picture at right, the intensity is rather high ...

  4. Contrast (vision) - Wikipedia

    en.wikipedia.org/wiki/Contrast_(vision)

    Contrast (vision) Six renditions of a rocky shore photo with incremental contrast levels, clockwise from bottom left. Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) visible against a background of different luminance or color. The human visual system is more sensitive to ...

  5. Matched filter - Wikipedia

    en.wikipedia.org/wiki/Matched_filter

    Matched filters are often used in signal detection. [1] As an example, suppose that we wish to judge the distance of an object by reflecting a signal off it. We may choose to transmit a pure-tone sinusoid at 1 Hz. We assume that our received signal is an attenuated and phase-shifted form of the transmitted signal with added noise.

  6. Amazon's No. 1 best-selling pillows are 20% off: 'It ... - AOL

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    Be sure to select the coupon on the product page to get 20% off your purchase at check out. More Deals We Recommend: Amazon. Apple AirPods (2nd Generation) $69 $129 Save $60.

  7. Refractive index contrast - Wikipedia

    en.wikipedia.org/wiki/Refractive_index_contrast

    Refractive index contrast, in an optical waveguide, such as an optical fiber, is a measure of the relative difference in refractive index of the core and cladding.The refractive index contrast, Δ, is often given by =, where n 1 is the maximum refractive index in the core (or simply the core index for a step-index profile) and n 2 is the refractive index of the cladding. [1]

  8. The 10 best sales to shop this week: Target, Sephora ... - AOL

    www.aol.com/lifestyle/the-10-best-sales-this...

    Steve Madden Hazel Slide Sandal. $45 $60 Save $15. There's nothing like a little pop of color to really elevate an outfit. These classic Steve Madden slides come in a four different colors — tan ...

  9. List of common display resolutions - Wikipedia

    en.wikipedia.org/wiki/List_of_common_display...

    16:9. 8,294,400. 7680 × 4320. 8K UHDTV. 4320p. 33,177,600. Many of these resolutions are also used for video files that are not broadcast. These may also use other aspect ratios by cropping otherwise black bars at the top and bottom which result from cinema aspect ratios greater than 16∶9, such as 1.85 or 2.35 through 2.40 (dubbed ...

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