False color

In addition, variants of false colors such as pseudocolors, density slicing, and choropleths are used for information visualization of either data gathered by a single grayscale channel or data not depicting parts of the electromagnetic spectrum (e.g. elevation in relief maps or tissue types in magnetic resonance imaging).

Some spacecraft, with rovers (e.g. the Mars Science Laboratory Curiosity) being the most prominent examples, have the ability to capture approximate true-color images as well.

[3] Weather satellites produce, in contrast to the spacecraft mentioned previously, grayscale images from the visible or infrared spectrum.

[7] The frequency of light emitted by different ions in space are assigned contrasting colors, allowing the chemical composition of complex structures to be better separated and visualised.

[4] Pseudocoloring can make some details more visible, as the perceived difference in color space is bigger than between successive gray levels alone.

A choropleth is an image or map in which areas are colored or patterned proportionally to the category or value of one or more variables being represented.

While artistic rendition lends to subjective expression of color, Andy Warhol (1928–1987) has become a culturally significant figure of the modern art movement by creating false-color paintings with screen printing techniques.

Some of Warhol's most recognizable prints include a replication of Marilyn Monroe, her image based on a film frame from the movie Niagara.

A series of prints were made with endearment but expose her persona as an illusion through his assembly line style of art production which are non-erotic and slightly grotesque.

[17] Using various ink color palettes, Warhol immersed himself in a process of repetition that serves to compare personas and everyday objects to the qualities of mass production and consumerism.

[18] The colors of ink were selected through experimentation of aesthetics and do not correlate to false-color rendering of the electromagnetic spectrum employed in remote sensing image processing.

A mosaic constructed from a series of 53 images taken through three spectral filters by Galileo ' s imaging system as it flew over the northern regions of the Moon in December 1992.
A false-color image from the Meteor M2-2 satellite's imager MSU-MR. The image was received by an amateur radio station and is derived from the HRPT data.
Burns Cliff inside of Endurance crater on Mars . The color is approximate true color because, instead of the red spectral band, infrared was used. The result is a metameric failure in the color of the sky, which is slightly green in the image – had a human observer been present, then that person would have perceived the actual sky color to have a bit more orange in it. The Opportunity rover which captured this image does have a red filter, but it is often not used, due to the higher scientific value of images captured using the infrared band and the constraints of data transmission.
A traditional false-color satellite image of Las Vegas. Grass-covered land (e.g. a golf course) appears in red.
An image of Tasmania and surrounding waters using density slicing to show phytoplankton concentration. The ocean color as captured by the satellite image is mapped to seven colors: Yellow, orange and red indicate more phytoplankton, while light green, dark green, light blue and dark blue indicate less phytoplankton; land and clouds are depicted in different colors.
The 2004 United States presidential election , visualized using a choropleth map. Support for the Republican and Democratic candidates are shown in shades of the parties' respective red and blue traditional colors .