AviationBanter - View Single Post - Spinner strobing as a "Bird Strike Countermeasure"

**Mxsmanic** · December 5th 07, 05:58 PM posted to rec.aviation.piloting,rec.aviation.homebuilt

writes:

Looks to me more like a detail issue, with the resolution
that diminishes with distance causing the illusion.

Each image actually contains two images, one that is simply blurred, and one
that is a line image with heavy unsharp masking. At close range, the fine
lines of the unsharp-masked image are visible, and the image built that way is
more prominent. At a distance, the adjacent bright and dark of the
unsharp-masked lines blends into a constant gray, and the contours of the
blurred image become more prominent.