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On the extraction and alignment of image edges

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image of Spatial Vision
For more content, see Multisensory Research and Seeing and Perceiving.

In this paper the types of image filtering, segmentation and correlational processes which are consistent with the ability of human observers to align edges in arbitrary two-dimensional images are considered. Edge-only versions of a number of images were computed by pre-filtering, segmenting and using Laplacians to extract luminance boundaries. The matching of such edge-only images with the originals seems well predicted by a (derivative) matched filtering (cross-correlation) process showing some bias toward edges contained within the middle frequency range of the images used.

Affiliations: 1: Department of Psychology, University of Alberta, Edmonton, Alberta T6G 2E9, Canada

10.1163/156856886X00016
/content/journals/10.1163/156856886x00016
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/content/journals/10.1163/156856886x00016
1986-01-01
2016-12-06

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