dichromat


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Related to dichromat: protanopia, dichromates

di·chro·mat

(dī'krō-mat),
An individual with dichromatism.

dichromat

(dī′krə-măt′)
n.
A person with dichromatism.

dichromat

Person having dichromatism, i.e. a deuteranope, a protanope or a tritanope.
References in periodicals archive ?
apply quantization to select N colors / select reference points optimize mass-spring system apply interpolation using transformed reference points The mass-spring optimization allows both for a short computation time, and a more natural looking result, due to the fact that this method does not affect colors that are perceived the same by trichromats and dichromats.
Possible future work in this area of interest can focus on three aspects: optimizing performance of existing techniques, the scarceness of publicly available software applications that can perform color transformations for dichromats, as well as development of a procedure suitable for naturalness-preserving processing of video content.
vischeck.com/examples/) or in some publications (Lillo & Moreira, 2013, Figures 4.5, 5.17, and 5.18) facilitate an intuitive understanding of some dichromats' everyday problems and why the visual search attentional control (Ponte & Sampedro, 1997) can be more difficult for them.
The method is based on pseudoachromatic stimuli identification, that is, those stimuli seen as chromatic (greenish or reddish) by common observers and as grey by dichromats. In that work, the Simulcheck method was used in optimal circumstances, that is, when sophisticated instruments were available to perform accurate photo-colorimetric measurements.
At the time when the survey was carried out, most dichromats were aware of their defect and 71% became aware of it because they experienced difficulties with colour-related tasks.
In total 49% of dichromats and 18% of anomalous trichromats who participated in the Steward and Cole survey (1) reported difficulties with distinguishing the colours of traffic light signals.
In a study by Birch, (36) a correct diagnosis based on the polarity of the plot was obtained for almost all dichromats and 50% of anomalous trichromats.
A classification of the defect may be possible at the same time, but the anomaloscope will be needed to differentiate between anomalous trichromats and dichromats. A battery of colour vision tests is often employed to grade the severity of the defect.
Therefore, some anomalous trichromats may have colour discrimination which is nearly as good as that of normals, whereas others may resemble dichromats.
Use of Basic Color Terms by red-green dichromats: 1.
Uso de terminos de color basicos en daltonicos dicromatas y personas de edad avanzada [Basic color terms use by red-green dichromats and by aged people].
Visual thresholds in dichromats and normals: The importance of post-receptoral processes.