A New Image-Processing-Based Technique for Measuring Leaf Dimensions

IDOSI Publications
Publication Type:
Journal Article
American-Eurasian J. Agric. & Environ. Sci., 2012, 12 (12), pp. 1588 - 1594
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We propose in this paper a new method for measuring a number of leaf dimension parameters including height, width, average width, perimeter and area. A digital scanner is utilized to acquire leaf images, which unlike digital cameras, requires no calibration in terms of size and angle of the acquired images. Edge detection, filtering and thresholding algorithms are applied to identify the leaf section of the image against the background. Forty leaves that differ in shape and size were used to validate the estimated parameters against the true values and parameters produced by the popular Li-Cor 3100. Data indicated that the proposed method achieved a constantly high accuracy
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