While image noise can sometimes be appealing due to its “aged” look reminiscent of the analog cameras of days past, photographers are usually looking to eliminate that graininess in favor of a sharper image. When taking digital pictures, the image you capture is dependent on the light hitting your camera’s sensor and there is unavoidable noise caused by the play of light, either fixed-pattern noise from long exposure, random noise caused by short exposure or banding noise, generally caused by low lighting conditions. In a world where analog cameras are practically antiques and digital photography has taken over, the term “image noise” is now the norm. If you’re old enough to have handled and used an analog camera, you’re likely familiar with the term “film grain” when referring to blurry areas of a photograph caused by reflection or overexposure.
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