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Raw images include binary (black-and-white) or grayscale data generated in response to infrared or ultraviolet or other energy lying outside the visible light spectrum—requiring people to make technical decisions for how to transform the raw digital data into colorized pictures for human viewing. [18]
Monochrome photography is photography where each position on an image can record and show a different amount of light (), but not a different color ().The majority of monochrome photographs produced today are black-and-white, either from a gelatin silver process, or as digital photography.
A traditional false-color satellite image of Las Vegas. Grass-covered land (e.g. a golf course) appears in red. In contrast to a true-color image, a false-color image sacrifices natural color rendition in order to ease the detection of features that are not readily discernible otherwise – for example the use of near infrared for the detection of vegetation in satellite images. [1]
They are fragile and even minimal efforts to clean them can irreparably damage the image. Hand-coloured cased photographs should be stored horizontally, in a single layer, preferably faced down. Cases can be wrapped with alkaline or buffered tissue paper. If the photograph has become separated from its case, a mat and backing board can be cut ...
The collapse of the stellar core to a white dwarf takes place over tens of thousands of years, while the star blows off its outer envelope to form a planetary nebula. If it has a companion star , a white dwarf-sized object can accrete matter from the companion star.
Barnard's Loop (catalogue designation Sh 2-276) is an emission nebula in the constellation of Orion. It is part of the Orion molecular cloud complex which also contains the dark Horsehead and bright Orion nebulae. The loop takes the form of a large arc centered approximately on the Orion Nebula. The stars within the Orion Nebula are believed to ...
The LA wildfires across the state of California this week have taken the lives of 5 individuals and thousands displaced from their homes. These before and after pictures show the wildlife's ...
The companion star of the black hole Cygnus X-1 is the brighter of the two stars near the middle of the photo. Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab/NSF/AURA) Sharpless 101 (Sh 2-101) is a H II region [1] emission nebula located in the constellation Cygnus.