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Shadow noise : ウィキペディア英語版 | Shadow noise
(詳細はdigital lightening has on an image, specifically on the darker, or shadowed areas of the image. Brightening the image, especially in underexposed photos, brings out the "shadow noise" in such areas. Noise in digital photography is the analog to film photography's grain, or visible distortion that appears on an image. However, film grain tends to be less noticeable than noise, which can appear as distorted colors or artifacts on an image. A suitable analogy would be when a television begins to "snow" or experience "white noise", when static begins to appear on the screen, distorting or obscuring the image. == Correction == There are methods to correct shadow noise. Professional digital editing software like Photoshop have the capability to eliminate some amount of noise, while other software, such as (Band Aide ) or Noise Ninja are specifically designed around the process of eliminating shadow noise in a photo.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Shadow noise」の詳細全文を読む
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