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In photography and optics, vignetting (/ v ɪ n ˈ j ɛ t ɪ ŋ / vin-YET-ing) is a reduction of an image's brightness or saturation toward the periphery compared to the image center. The word vignette, from the same root as vine, originally referred to a decorative border in a book.
Also may mean "Perspective Control" for a lens that has the ability to shift to tilt to control linear perspective in an image. May also stand for personal computer in conjunction with digital photography. PDAF: Phase-detection autofocus. One of the mechanisms of automatic lens focusing. PF: Purple fringing. A form of chromatic aberration in ...
A typical three-point lighting setup with a shoulder or back-side lamp used to create contrast between the background and center object and a three-dimensional appearance. ...
Photography – process of making pictures by the action of recording light patterns, reflected or emitted from objects, on a photosensitive medium or an image sensor through a timed exposure. The process is done through mechanical , chemical , or electronic devices known as cameras .
S represents the light source, while r represents the measured points. The lines represent the flux emanating from the sources and fluxes. The total number of flux lines depends on the strength of the light source and is constant with increasing distance, where a greater density of flux lines (lines per unit area) means a stronger energy field.
Just four teams remain in the NFL playoffs. Here's a look at the teams remaining in the playoff bracket entering the conference championship games.
In optics, Lambert's cosine law says that the observed radiant intensity or luminous intensity from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle θ between the observer's line of sight and the surface normal; I = I 0 cos θ.
James Mangold misses the era when movies weren’t embarrassed to make audiences feel something. The director of the Bob Dylan musical biopic “A Complete Unknown” and comic book adaptation ...