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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universitat de València
2005
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| Online Access: | https://www.redalyc.org/articulo.oa?id=16926114 |
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Table of Contents:
- Relative luminance and figure-background segmentation problems: Using AMLA to avoid nondiscernible stimulus pairs in common and color blind observers Julio Lillo Jover Humberto Moreira Psicología Four experiments evaluated AMLA temporal version accuracy to measurerelative luminosity in people with and without color blindness and,consequently, to provide the essential information to avoid poor figurebackgroundcombinations in any possible specific screen-specific observerpair. Experiment 1 showed that two very different apparatus, a sophisticatedphotometer and a common luxometer, provide equivalent measurements tocompute: (1) screen gamma exponents and (2) relative luminance (Y/Yn) ofachromatic but not of chromatic stimuli. Experiments 2, 3 and 4 showedthat the psychophysical task of AMLA temporal version provided, for anystimulus type, accurate relative luminance measurements. They were:equivalent to standardised photometric measurements for common observers(Experiment 2); similar to the expected distortions for simulated(Experiment 2) and real (Experiment 3) aged tritanomalous observers;concordant with the expected distortions of protanope observers(Experiment 4). 2005 artículo científico 0211-2159 https://www.redalyc.org/articulo.oa?id=16926114 en http://www.redalyc.org/revista.oa?id=169 Psicológica application/pdf Universitat de València Psicológica (España) Num.1 Vol.26