Lens glare or lens flare is a global light transport phenomenon which occurs due to reflections and scattering of light in the optical elements and body of the camera and leads to decrease in the contrast of the image.
Glare is a phenomenon caused due to bright light source (either narrow or extended) in or near the field of view of the camera. It is typically caused when stray light reaches the sensor and could be either due to reflections at the air-glass interface of the lens or due to scattering in the lens. The effect of glare is a decrease in contrast of the image and thereby its dynamic range and is often considered undesirable. Sometimes glare is used artistically in graphics or outdoor filming to convey a sense of realism. A simple way to decrease glare is to use lens hood to prevent stray light from entering the lens and by using antireflective coating on lens which...
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Reddy, D., Veeraraghavan, A. (2014). Lens Flare and Lens Glare. In: Ikeuchi, K. (eds) Computer Vision. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-31439-6_481
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-30771-8
Online ISBN: 978-0-387-31439-6