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2. 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.

3. Helicon Filter - Wikipedia

   en.wikipedia.org/wiki/Helicon_Filter

   Unlike these other programs, Helicon Filter is designed primarily to edit and improve existing photos and not for graphics creation. Helicon Filter's interface also differs from other programs in that compact toolbars and menus containing editing tools are replaced with labeled "filter" tabs, each tab containing labeled edit options specific to ...

4. Contrast (vision) - Wikipedia

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

   Contrast sensitivity is typically expressed as the reciprocal of the threshold contrast for detection of a given pattern (i.e., 1 ÷ contrast threshold). [15] Using the results of a contrast sensitivity exam, a contrast sensitivity curve can be plotted, with spatial frequency on the horizontal, and contrast threshold on the vertical axis.

5. Dodging and burning - Wikipedia

   en.wikipedia.org/wiki/Dodging_and_burning

   Compressing this high dynamic range into a print either requires uniformly decreasing contrast (making tones closer together) or carefully printing different parts of an image differently so that each retains the maximum contrast – in this latter dodging and burning is a key tool.

6. Blend modes - Wikipedia

   en.wikipedia.org/wiki/Blend_modes

   The Luminosity mode is commonly used for image sharpening, because human vision is much more sensitive to fine-scale lightness contrast than color contrast. (See Contrast (vision)) Few editors other than Photoshop implement this same color space for their analogs of these blend modes. [3]

7. Normalization (image processing) - Wikipedia

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

   The contrast enhancement tries to change the intensity of the pixel in the image, particularly in the input image for the purpose to obtain a more enhanced image .It is based on the number of techniques namely local, global, dark and bright levels of contrast .The contrast enhancement is considered as the amount of color or gray differentiation ...

8. FACT CHECK: Contrary To Claim, Matt Gaetz Did Not Make ... - AOL

   www.aol.com/fact-check-contrary-claim-matt...

   A viral post shared on X claims Florida Republican Rep. Matt Gaetz purportedly made a tweet about “age gap dating.” View on Threads Verdict: False The claim is false. The purported tweet was ...

9. Photographic filter - Wikipedia

   en.wikipedia.org/wiki/Photographic_filter

   Strong UV filters are also sometimes used for warming color photos taken in shade with daylight-type film. They were originally developed to increase contrast in airborne surveillance photography, and were adopted by mountaineering photographers to remedy the strong UV at high altitude. [citation needed]