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Lexie McClymont, Ian Goodwin, Desmond Whitfield, Mark O’Connell, and Susanna Turpin

, sampled fruit were visually assessed for blush (red peel) coverage, expressed as a percentage of fruit surface. All harvested fruit in year 4 and 5 were assessed for blush coverage by a RGB color sensor mounted on the grading line. Linear regression of

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Chase Jones-Baumgardt, David Llewellyn, Qinglu Ying, and Youbin Zheng

://imagej.nih.gov/ij/download.html ) was used to determine red, green, and blue (RGB) values for each image, which were then converted into hue and saturation values using the formulas outlined by Karcher and Richardson (2003) . Hue angle (HA) refers to a position on a continuous

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Yawadee Srimake and Susan C. Miyasaka

, determined its color balance as RGB 40/14/56 using Photoshop (version CS; Adobe Systems, San Jose, CA) and set this intensity to a value of 5 in a scale of 0 to 5. The 5-rated image was imported into PowerPoint (version 2007; Microsoft, Redmond, WA), and

Open access

D. Michael Jackson, Howard F. Harrison, Robert L. Jarret, and Phillip A. Wadl

, aspect ratio, roundness, solidity, area) and colorimetric (CIE L*a*b*C*h* or RGB data from images) information to standard morphological characterization improved estimates of phenotypic plant diversity in sweetpotato, and they were able to discriminate