page_title: Motion blur
section_title: Negative effects of motion blur
hierarchical_section_title: Motion blur / Negative effects of motion blur
caption_attribution_description: English: Women in a temporarily stopped taxicab, which was waiting for a traffic light, said "hello!" in a spirit of fun, and I replied by asking if they wanted to be in Wikipedia? They said "yes" enthusiastically. I turned my camera on and got this shot just as their taxi was driving off when the light changed. so the photo is slightly blurry. One asked "what article will we be in?" and I didn't get a chance to answer, but maybe some Wikipedians smarter than moi will figure out something.
context_page_description: Motion blur is the apparent streaking of moving objects in a photograph or a sequence of frames, such as a film or animation. It results when the image being recorded changes during the recording of a single exposure, due to rapid movement or long exposure.
context_section_description: In televised sports, where conventional cameras expose pictures 25 or 30 times per second, motion blur can be inconvenient because it obscures the exact position of a projectile or athlete in slow motion. For this reason special cameras are often used which eliminate motion blurring by taking rapid exposures on the order of 1 millisecond, and then transmitting them over the course of the next 30 to 40 milliseconds. Although this gives sharper slow motion replays it can look strange at normal speed because the eye expects to see motion blurring and is not provided with blurred images. 
  Conversely, extra motion blur can unavoidably occur on displays when it is not desired. This occurs with some video displays (especially LCD) that exhibits motion blur during fast motion. This can lead to more perceived motion blurring above and beyond the preexisting motion blur in the video material. See display motion blur.
  Sometimes, motion blur can be removed from images with the help of deconvolution.
  In video games the use or not of motion blur is somewhat controversial. Some gamers claim that the blur actually makes gaming worse since it does blur images, making more difficult to recognize objects, especially in fast-paced moments. This does become noticeable the lower the frame rate is. Improvements in the visual quality of modern post-process motion blur shaders as well as a tendency towards high frame rate video games has lessened the visual detriment of undersampled motion blur effects.
caption: A taxicab starting to drive off blurred the girl's faces in the image.
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