Recognition of Positive and Negative Bandpass-Filtered Images
PerceptionPublished 1 October 1986
Tony Hayes, Maria Concetta Morrone, David C. Burr
Citations170
SJR quartileQ2
SJR score0.52
SNIP0.66
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TL;DR
The results show that a 1.5 octave bandpass-filtered image contains sufficient visual information for good recognition performance, provided the filter is centred close to 20 cycles facewidth−1.
Abstract
A study is reported in which the significance for vision of low- and high-spatial-frequency components of photographic positive and negative images was investigated by measuring recognition of bandpass-filtered photographs of faces. The results show that a 1.5 octave bandpass-filtered image contains sufficient visual information for good recognition performance, provided the filter is centred close to 20 cycles facewidth-1. At low spatial frequencies negatives are more difficult to recognize than positives, but at high spatial frequencies there is no difference in recognition, implying that it is the low-frequency components of negatives which present difficulties for the visual system.
Keywords
Computer ScienceEngineering
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