Image: Clock Tower from Su Song's Book desmear
Size of this preview: 398 × 599 pixels. Other resolutions: 159 × 240 pixels | 908 × 1,366 pixels.
Original image (908 × 1,366 pixels, file size: 661 KB, MIME type: image/jpeg)
Description: File:Clock_Tower_from_Su_Song's_Book.JPG with smear removed by mixing channels: Red: 0.2 green + blue Green: 0.4 green + 0.65 blue Blue: blue as red is badly smeared, green is slightly smeared but has least noise, and blue is not smeared but has most noise.
Title: Clock Tower from Su Song's Book desmear
Credit: http://commons.wikimedia.org/wiki/File:Clock_Tower_from_Su_Song%27s_Book.JPG
Author: Su Song
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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