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Method for Using Images from a Color Digital Camera to Estimate Flower Number

^a U.S. Water Conservation Laboratory, USDA, ARS, 4331 E. Broadway Rd., Phoenix, AZ 85040 USA
^b University of Arizona Maricopa Agricultural Center, Maricopa, AZ USA

View larger version (31K): [in a new window]   Fig. 1 Flow diagram of main automated image processing loop to determine flower count

View larger version (98K): [in a new window]   Plate 1 Results of image processing on the image from Plot A on 15 Apr. 1997. (a) cropped image, (b) area within cropped image outlined in red, (c) outlined area after color depletion, (d) outlined area after color remapping, (e) outlined area after search for yellow spots, (f) outlined area after elimination of non-yellow pixels

View larger version (25K): [in a new window]   Fig. 2 Temporal changes in flower pixels, Euler number, and flower number of lesquerella in Plot A in 1997

View larger version (18K): [in a new window]   Fig. 3 Regression analysis of flower pixels vs. flower number for lesquerella in Plots A and B in 1997

View larger version (19K): [in a new window]   Fig. 4 Regression analysis of Euler number vs. flower number for lesquerella in Plots A and B in 1997