Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Images (both original and binarized) classified according to angular intervals.
| ANGLE [0°, 10º] | ANGLE [0°,−10°] | ANGLE [10°,20°] | ANGLE [−10°,−20°] |
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| ANGLE [20°,30°] | ANGLE [−20°,−30°] | ANGLE [30°,40°] | ANGLE [-30°,-40°] |
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| ANGLE [40°,50°] | ANGLE [−40°,−50°] | ANGLE [50°,60°] | ANGLE [−50°,−60°] |
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| ANGLE [60°,70°] | ANGLE [−60°,−70°] | ANGLE [70°,80°] | ANGLE [−70°,−80°] |
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| ANGLE [80°,90°] or [−80°,−90°] | |||
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