《Table 1 Difference in texture features between fruit and leaves under varying illumination conditio
本系列图表出处文件名:随高清版一同展现
《Feature extraction of hyperspectral images for detecting immature green citrus fruit》
Grey Level Co-occurrence Matrices(GLCM),as main image texture analysis tool,is a statistical method to demonstrate image texture structure by statistical sampling of the pattern of the gray levels that occur in relation to other gray levels.GLCM can be generated by calculating how often a pixel with gray level value,i,occurs adjacent to a pixel with the value,j.That is to say,a co-occurrence matrix is specified by the relative frequencies P(i,j,d,θ)in which two pixels,separated by distance d,occur in a direction specified by the angleθ,one with gray level i and the other with gray level j[16].Table 1 shows the difference in texture features between fruit and leaves under varying illumination conditions.To detect green fruit using texture features,six most relevant features,including autocorrelation,cluster prominence,cluster shade,sum of squares,sum average and sum variance,were chosen for further classification.
图表编号 | XD0017392400 严禁用于非法目的 |
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绘制时间 | 2018.12.01 |
作者 | Yongjun DING、Won Suk LEE、Minzan LI |
绘制单位 | School of Electronic and Information Engineering,Lanzhou City University、Agricultural and Biological Engineering,University of Florida、Key Laboratory of Modern Precision Agriculture System Integration Research of Ministry of Education,China Agricultural U |
更多格式 | 高清、无水印(增值服务) |
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