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  2. Normalization (image processing) - Wikipedia

    en.wikipedia.org/wiki/Normalization_(image...

    A Contrast Stretching Transformation can be achieved by: Contrast Stretching Transformation Graph reference for derivation. 1. Stretching the dark range of input values into a wider range of output values: This involves increasing the brightness of the darker areas in the image to enhance details and improve visibility. 2.

  3. Adaptive histogram equalization - Wikipedia

    en.wikipedia.org/wiki/Adaptive_histogram...

    Adaptive histogram equalization (AHE) is a computer image processing technique used to improve contrast in images. It differs from ordinary histogram equalization in the respect that the adaptive method computes several histograms, each corresponding to a distinct section of the image, and uses them to redistribute the lightness values of the image.

  4. Contrast agent - Wikipedia

    en.wikipedia.org/wiki/Contrast_agent

    A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. [1] Contrast agents absorb or alter external electromagnetism or ultrasound , which is different from radiopharmaceuticals , which emit radiation themselves.

  5. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Sunday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    An example spangram with corresponding theme words: PEAR, FRUIT, BANANA, APPLE, etc. Need a hint? Find non-theme words to get hints. For every 3 non-theme words you find, you earn a hint.

  6. Magnetic resonance elastography - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_elasto...

    For example, regional and global decreases in brain viscoelasticity have been observed in Alzheimer's disease [32] [33] and multiple sclerosis. [ 34 ] [ 35 ] It has been found that as the brain ages, it loses its viscoelastic integrity due to degeneration of neurons and oligodendrocytes .

  7. Study Finds Changes in Cholesterol May Indicate Higher ...

    www.aol.com/study-finds-changes-cholesterol-may...

    It determined that low-dose aspirin was not effective in reducing heart disease risk in Australian and American adults. Worth noting: White adults made up 96% of the study, so the findings may not ...

  8. DC police investigating 5-year-old shot by younger sibling ...

    www.aol.com/news/dc-police-investigating-5-old...

    Police in Washington, D.C., arrested two adults after a 5-year-old girl was shot by her younger brother on Monday. The little girl was shot by her younger brother who accessed an unsecured firearm ...

  9. Contrast (vision) - Wikipedia

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

    The maximum contrast of an image is termed the contrast ratio or dynamic range. In images where the contrast ratio approaches the maximum possible for the medium, there is a conservation of contrast. In such cases, increasing contrast in certain parts of the image will necessarily result in a decrease in contrast elsewhere.