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Asked by: Mignon Pocero
technology and computing photo editing softwareWhat causes moire in video?
This effect is called moiré andiscaused when a fine pattern in the subject (such as theweavein a fabric or very close, parallel lines in architecture)matchesthe pattern of the imaging chip. In order to reduce (oreliminate)moiré, a special anti-aliasing filter ismounted inthe camera.
In respect to this, what is moire in video?
Moiré pattern occurs when a scene oranobject that is being photographed contains repetitive details(suchas lines, dots, etc) that exceed the sensor resolution. Asaresult, the camera produces a strange-looking wavy pattern asseenbelow: Image courtesy of photo.net.
Thereof, what causes moire?
Moiré occurs when a scene or anobjectbeing photographed presents repetitive details. Theseinclude, butare not limited to, lines and dots. This effect iscreated by thepattern if it exceeds the sensor's resolution. Whenthis happens,the camera creates a strange lookingimage.
Color moiré is an artificialcolorbanding that can appear in images with repetitivepatterns of highspatial frequencies, like fabrics or picket fences– or yourcomputer screen. It is affected by lens sharpness,the sensor'santi-aliasing (lowpass) filter (which softens theimage), anddemosaicing software.