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Freepik was founded in 2010 by brothers Alejandro Sánchez and Pablo Blanes, together with their friend Joaquín Cuenca, founder of Panoramio. [3] Initially, it was a search engine that indexed content from the top 10 free content websites for designers.
Sally Mann (born Sally Turner Munger; May 1, 1951) [1] is an American photographer known for making large format black and white photographs of people and places in her immediate surroundings: her children, husband, and rural landscapes, as well as self-portraits.
Sepia toning is a specialized treatment to give a black-and-white photographic print a warmer tone and to enhance its archival qualities. The metallic silver in the print is converted to a sulfide compound, which is much more resistant to the effects of environmental pollutants such as atmospheric sulfur compounds.
This is a simple scaling of the red, green, and blue channels, and is why color balance tools in Photoshop have a white eyedropper tool. It has been demonstrated that performing the white balancing in the phosphor set assumed by sRGB tends to produce large errors in chromatic colors, even though it can render the neutral surfaces perfectly neutral.
Photoshop developed by Thomas and John Knoll; 1990 — Adobe Photoshop 1.0 released on February 19, for Macintosh exclusively. [21] [22] 1992 – Photo CD created by Kodak. [23] 1993–95 – The Jet Propulsion Laboratory develops devices using CMOS or active pixel sensors. 1994 – Nikon introduces the first optical-stabilized lens.
In a portrait retouching could be used to improve a sitter's appearance, for instance, by removing facial blemishes, and in a landscape with an overexposed sky, clouds could be painted into the image. Water-colours, inks, dyes, and chemical reducers are used with such tools as scalpels, pointed brushes, airbrushes, and retouching pencils.
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Following the Weber–Fechner law, at the start of the 20th century human lightness perception was assumed to be logarithmic.In 1903, The New International Encyclopædia illustrated this concept by stating that given a black and white with a luminance ratio of 1:60 ( : ), the geometric mean had to be used to find the middle gray. [10]