A Green Vegetation Extraction Based-RGB Space in Natural Sunlight

Abstract:

Green vegetation segmentation in color images is a fundamental issue for automated remote sensing and machine vision applications, plant ecological assessments, precision crop management, and weed control. A simple green vegetation feature extraction method (GVFE) is proposed in this paper to segment the green vegetation from their non-green backgrounds due to the fact that the green component content is always greater than that of the red and blue in RGB color space. The conventional based-auto-threshold method, ExG (Excess Green) was compared with GVFE, in which a green index ratio was defined to evaluate the performance of them. A digital color image set of single Canna flower taken in natural lighting were used to test them. Experimental results have showed that GVFE has superior performance over ExG+auto-threshold in term of stability, and is insensible to illuminant variations.

• Periodical: Advanced Materials Research (Volumes 225-226)
• Pages: 660-665
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.225-226.660
• Online since: April 2011
• Authors: Zhi Bin Zhang, Cai Xia Liu, Xiao Dong Xu
• Keywords: Color Image, Green Vegetation, Green Vegetative Index, Image Segmentation

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