An evaluation of methods for producing desired colors on CRT monitors

Post, David L.; Calhoun, Christopher S.

doi:10.1002/col.5080140406

Cited by 97 publications

(73 citation statements)

References 4 publications

(1 reference statement)

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“…Chromaticity and luminance of the stimuli were controlled by periodic calibrations using a SpectraScan PR-704 PhotoResearch spectroradiometer. To produce stimuli with specific CIE-1931 coordinates and luminance, we used a modification of the calibration method of Post and Calhoun (1989) proposed by Jiménez del Barco, Díaz, Jiménez, and Rubiño (1995). Observers were seated 70 cm from the CRT in a dark room, and a chinrest was used for head stabilization.…”

Section: Methods Apparatusmentioning

confidence: 99%

Binocular summation of chromatic changes as measured by visual reaction time

Jiménez

Medina

Barco

et al. 2002

Perception & Psychophysics

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Section: Methods Apparatusmentioning

confidence: 99%

Binocular summation of chromatic changes as measured by visual reaction time

Jiménez

Medina

Barco

et al. 2002

Perception & Psychophysics

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“…To produce the stimuli with particular CIE-1931 coordinates and luminance, we used a modified calibration method of Post and Calhoun. 21,36,37 Observers were seated 70 cm from the CRT in a dark room and used a chin rest for head stabilization.…”

Section: B Apparatus and Calibrationmentioning

confidence: 99%

Postreceptoral chromatic-adaptation mechanisms in the red-green and blue-yellow systems using simple reaction times

Medina

Díaz

2006

J. Opt. Soc. Am. A

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(Doc. ID 62073) Simple visual-reaction times (VRT) were measured for a variety of stimuli selected along red-green (L − M axis) and blue-yellow [S − ͑L+M͒ axis] directions in the isoluminant plane under different adaptation stimuli. Data were plotted in terms of the RMS cone contrast in contrast-threshold units. For each opponent system, a modified Piéron function was fitted in each experimental configuration and on all adaptation stimuli. A single function did not account for all the data, confirming the existence of separate postreceptoral adaptation mechanisms in each opponent system under suprathreshold conditions. The analysis of the VRT-hazard functions suggested that both color-opponent mechanisms present a well-defined, transient-sustained structure at marked suprathreshold conditions. The influence of signal polarity and chromatic adaptation on each color axis proves the existence of asymmetries in the integrated hazard functions, suggesting separate detection mechanisms for each pole (red, green, blue, and yellow detectors).

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“…Other authors have also proposed methods designed explicitly to deal with failures of channel constancy (28). Lookup table methods (see Channel Independence) may also be used to handle the effects of spectral changes.…”

Section: Extending the Standard Crt Model Channel Constancymentioning

confidence: 99%

Display Characterization

Brainard¹,

Pelli²,

Robson³

2002

Encyclopedia of Imaging Science and Technology

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This article describes the characterization and use of computer‐controlled displays. Most imaging devices are now computer controlled, and this makes it possible for the computer to take into account the properties of the imaging device to achieve the intended image. CRT (cathode ray tube) monitors is emphasizes the article begins with the standard model of CRT imaging. How this model may be used to render the desired visual image accurately from its numerical representation is shown. The domain of validity of the standard CRT model is discussed. The model makes several assumptions about monitor performance that are usually valid but can fail for certain images and CRTs. How to detect such failures and how to cope with them are explained. Primarily users who will be doing accurate imaging on a CRT are addressed. CRTs are very well suited for accurate rendering. Treatment of LCDs (liquid crystal displays) is brief, in part because this technology is changing very rapidly and in part because the strong dependence of emitted light on viewing angle in current LCD displays is a great obstacle to accurate rendering. Plasma displays seem more promising in this regard. All the steps of a basic characterization are presented. The treatment emphasizes accuracy both in color and in space. The display characteristics that need to be taken into account to present an arbitrary spatiotemporal image accurately, that is, luminance and chromaticity as a function of space and time are reviewed. A number of topics of interest to the vision scientist who requires precise control of a displayed stimulus are treated. This article explains the standard CRT model (and necessary basic colorimetry) and describes simple visual tests (available online) that establish the model's validity for a monitor. How to use the standard model to characterize your display for accurate rendering is shown. Finally, the discussion briefly presents several more advanced topics, including characterization of non‐CRT displays.

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An evaluation of methods for producing desired colors on CRT monitors

Cited by 97 publications

References 4 publications

Binocular summation of chromatic changes as measured by visual reaction time

Binocular summation of chromatic changes as measured by visual reaction time

Postreceptoral chromatic-adaptation mechanisms in the red-green and blue-yellow systems using simple reaction times

Display Characterization

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