^ "Can you explain "brightness temperature"?" (PDF). Technically, however, brightness refers strictly to perception, so how bright something is means how bright it looks."Radiative Processes in Astrophysics" (PDF). ^ "Brightness Temperature of a Laser-C.E.Philosophical Transactions: Physical Sciences and Engineering. ^ a b Rybicki, George B., Lightman, Alan P., (2004) Radiative Processes in Astrophysics, ISBN 978-9-7 Brightness can be referred to as the ability to detect differences in Luminance.
^ "Emissivity, Energy Conservation, Brightness Temperature". ^ "AMSU Brightness Temperature-NOAA CDR". "Revised planet brightness temperatures using the Planck/LFI 2018data release". Berlin Heidelberg: Springer-Verlag Theses. In oceanography, the microwave brightness temperature, as measured by satellites looking at the ocean surface, depends on salinity as well as on the temperature of the water. In particular, it is the temperature at which a black body would have to be in order to duplicate the observed intensity of a grey body object at a frequency ν In oceanography Apparent-brightness definition: (astronomy) The brightness of a star as measured by an observer, as opposed to its intrinsic brightness when corrected for distance or absorption. In labelling, brightness is a measure of the amount of light reflected by a material (usually paper) in particular, it refers to the perception of an object. ( Learn how and when to remove this template message)īrightness temperature or radiance temperature is a measure of the intensity of electromagnetic energy coming from an source. The brightness icon is often represented as a sun (circle with several lines around the circle) or a light bulb. I am purposely being careful about my choice of words. 
Moving the brightness slider to the left of center position decreases image brightness and shifts the histogram to lower input pixel brightness values. Perhaps the easiest measurement to make of a star is its apparent brightness. ( August 2015) ( Learn how and when to remove this template message) The specimen brightness level can be adjusted with the Brightness Level slider or its accompanying blue arrow buttons, in a manner analogous to that described above for the contrast controls. Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This article possibly contains original research.
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