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(Harris shutter effect) Grizzly Classic hurdler

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Ursinus College hosted the Grizzly Classic track & field competition on 4/21/2012. The black wall provided an ideal background for the Harris shutter effect, a multiple exposure method useful for dynamic scenes.


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Technical Trivia

Three sequential images were corrected for distortion and registered before abstracting red, green, and blue channels from different images. These were recombined to generate this image.


Problem: The burst mode on my camera reduces resolution and makes the color less pleasing. This was offset by aggressive black level enhancement:

- Generate a copy

- Use 'curves' tool to set bottom 15% of colors to black (V in HSV color space)

- Composite with original using soft light transformation at 50% opacity.

Saturation was increased by 7% to accentuate the blue "ghost" before noise reduction.

This version enhanced with tiltshiftmaker better isolates the central action.


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Taken on April 21, 2012