Type B signalling ( 134 bits in total ) already defines bits to carry an Active Format Descriptor, Colorimetry, Redistribution Control, and a pixel-accurate definition of the location of any letterbox or pillarbox bars in the image, plus two bytes reserved for future use.
32.
In colorimetry, "'CIECAM02 "'is the color appearance model published in 2002 by the International Commission on Illumination ( CIE ) Technical Committee 8-01 ( " Color Appearance Modelling for Color Management Systems " ) and the successor of CIECAM97s.
33.
The photometric unit "'lumerg "', also proposed by the Committee on Colorimetry in 1937, correlates with the old CGS unit erg in the same way that the lumen second correlates with the radiometric unit joule, so that 10 7 lumerg = 1 lm?" s.
34.
In reality, only imaginary " primary colors " used in colorimetry can " mix " or quantify all visible ( perceptually possible ) colors; but to do this, these imaginary primaries are defined as lying outside the range of visible colors; i . e ., they cannot be seen.
35.
"' Colorfulness "'or "'saturation "'in colorimetry and color theory refers to the perceived intensity of a specific color . " Colorfulness " is the visual sensation according to which the perceived color of an area appears to be more or less chromatic.
36.
In the case of a four-tube camera, there is a problem with colorimetry if the signal from the luminance tube is used in unmodified form to represent Y, because that signal is likely to be panchromatic, rather than having a characteristic similar to the luminance signal given by the equation above.
37.
"' Dorothy Nickerson "'( August 5, 1900 April 25, 1985 ) was an American technologist who made important contributions in the fields of color quality control, technical use of colorimetry, the relationship between color stimuli and color perceptions, standardization of light sources, color tolerance specification, and others.
38.
These results, that the complement of yellow is a wavelength shorter than 450 nm, are derivable from the modern CIE 1931 system of colorimetry if it is assumed that the yellow is about 580 nm or shorter wavelength, and the specified white is the color of a blackbody radiator of temperature 2800 K or lower ( that is, the white of an ordinary incandescent light bulb ).
39.
The ATSC A / 53 standard used in the United States, uses MPEG-2 video at the Main Profile @ High Level ( MP @ HL ), with additional restrictions such as the maximum bitrate of 19.4 Mbit / s for broadcast television and 38.8 Mbit / s for cable television, 4 : 2 : 0 chroma subsampling format, and mandatory colorimetry information.
40.
In an attempt to address these and other problems, Panavision followed this up in 2004 with the Genesis, a full bandwidth ( 4 : 4 : 4 ) camera with improved colorimetry and sensitometry-related specs and, probably most importantly, a Super 35 mm film-sized recording area, thus making it focally compatible with regular Cine Primo lenses and giving a true 35 mm depth of field.
