The Café Wall Illusion: Local and Global Perception from Multiple Scales to Multiscale

Figure 12

Mean tilts and the standard errors of detected tilt angles around the four reference orientations (, , , and ) from the DoG edge map at seven different scales of the whole Café Wall of 9 × 14 with 200 × 200 px tiles and 8 px mortar. Green error bars correspond to Hough NumPeaks = 1000, with mean values shown in Red.

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