Abstract：
:The contrast of a two-dimensional compound grating consisting of 2, 3 or 4 components with the same spatial frequency but different orientations was matched to the contrast of a simple cosine grating. At all spatial frequencies and contrast levels studied the stimuli which matched in apparent contrast had nearly equal r.m.s. (root-mean-square) but different Michelson contrasts. Thus, matching was based on r.m.s. contrast which takes into account the distribution of luminance levels in the stimulus. A matched filter provides a simple model to explain the contrast matching results.
journal_name
Vision Resjournal_title
Vision researchauthors
Tiippana K,Näsänen R,Rovamo Jdoi
10.1016/0042-6989(94)90298-4subject
Has Abstractpub_date
1994-05-01 00:00:00pages
1157-63issue
9eissn
0042-6989issn
1878-5646pii
0042-6989(94)90298-4journal_volume
34pub_type
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