Share Email Print

Proceedings Paper

Time effects on near-infrared imaging for detecting bruises on apples
Author(s): Bruce L. Upchurch; James A. Throop
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Imaging in the near-infrared region has been used frequently to detect bruises on `Delicious' apples. Pixel intensities from bruised and nonbruised regions within an image of an apple are compared to characterize the time effects. Near-infrared reflectance from a bruised site is generally lower than the reflectance from a nearby nonbruised region. This difference usually reaches a maximum 24 hours after inducing the bruise. As the bruise ages in storage, reflectance from the bruised region increases. The reflectance continues to increase and eventually exceeds the reflectance from a nonbruised region.

Paper Details

Date Published: 12 May 1993
PDF: 7 pages
Proc. SPIE 1836, Optics in Agriculture and Forestry, (12 May 1993); doi: 10.1117/12.144037
Show Author Affiliations
Bruce L. Upchurch, Cornell Univ. (United States)
James A. Throop, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 1836:
Optics in Agriculture and Forestry
James A. DeShazer; George E. Meyer, Editor(s)

© SPIE. Terms of Use
Back to Top