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. 2010 Jul 14;5(7):e11563. doi: 10.1371/journal.pone.0011563

Figure 1. Method of measuring the cuticle brightness value (B-value) of caterpillars.

Figure 1

a. 5th instar dl. b. 5th instar wt. Both original images have been separated from the background using the “lasso” tool, averaged using the “average” tool, and then converted to gray scale in Adobe Photoshop.