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Estimate Population by hms000

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About This Gigapan

Taken by
hms000 hms000
Explore score
0.22 Gigapixels
Date added
Feb 15, 2013
Date taken
Feb 15, 2013

Use the photo to find how many students have red ribbon tied to their wrist. Those represent the "tagged" students. Make a ratio of tagged to total. Then make a ratio equal to it with 245 over "x". Students will use cross products to find the estimated student population at our school.

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The GigaPan EPIC Series, Purchase an GigaPan EPIC model and receive GigaPan Stitch complimentary

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Stitcher Notes


GigaPan Stitch.Efx version 2.1.0161 (Windows)
Panorama size: 221 megapixels (29124 x 7596 pixels)
Input images: 40 (10 columns by 4 rows)
Field of view: 108.4 degrees wide by 28.3 degrees high (top=11.2, bottom=-17.1)
Vignette correction on: c1=-0.0508 c2=-0.00648
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot A3100 IS
Image size: 4000x3000 (12.0 megapixels)
Capture time: 2013-02-15 00:41:12 - 2013-02-15 00:44:11
Aperture: f/5.6
Exposure time: 0.8
ISO: 100
Focal length (35mm equiv.): 138.5 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Automatic
Horizontal overlap: 29.3 to 32.6 percent
Vertical overlap: 48.2 to 50.1 percent
Computer stats: 1640.67 MB RAM, 1 CPUs
Total time 1:37:06 (2:26 per picture)
Alignment: 8:49, Projection: 5:28, Blending: 1:22:48
(Preview finished in 19:09)

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