Glossary Of Photography Terms
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Image Noise Image noise refers to random variations in brightness or color that appear as unwanted artifacts in digital images, typically caused by factors such as sensor limitations, low light conditions, high ISO settings, or electronic interference. Image noise can manifest as graininess, speckles, or color distortion in areas of uniform tone or low contrast.
Common types of image noise include luminance noise, which affects brightness levels, and chroma noise, which affects color accuracy. Image noise can degrade image quality, reduce sharpness, and affect overall visual clarity, particularly in low-light or high-ISO photography. Photographers use techniques such as proper exposure, noise reduction algorithms, and image editing software to minimize and mitigate image noise while preserving image detail and quality. |
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