motionblurred

Motionblur is a visual artifact that occurs when there is rapid movement of the subject or camera during the capture of a still image or video frame. It results from the object or scene moving across the sensor or film plane while the exposure is still open, causing the light from the moving object to fall on adjacent pixels. This creates a streaking or smearing effect along the direction of motion. Motionblur is distinct from other types of blur, such as defocus blur, which is caused by an out-of-focus lens.

In photography, motionblur can be intentionally used as a creative tool to convey a sense of speed, dynamism, or the passage of time. For instance, a photographer might use a slower shutter speed to intentionally blur the wheels of a moving car to emphasize its velocity. Conversely, it is often an undesirable effect when capturing sharp images of moving subjects, such as in sports photography or portraiture where facial details are important. Photographers and videographers combat unwanted motionblur by using faster shutter speeds, image stabilization techniques, or by panning the camera to follow the subject's motion.

In digital imaging and video processing, motionblur can also be simulated or artificially introduced for aesthetic purposes or to correct for camera shake. Algorithms can analyze frame data to detect and either reduce or enhance motionblur. The perception of motionblur is also influenced by factors such as the viewing distance and the resolution of the display.