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首页> 外文期刊>African Journal of Biotechnology >Nitrogen determination in pepper (Capsicum frutescens L.) plants by color image analysis(RGB)
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Nitrogen determination in pepper (Capsicum frutescens L.) plants by color image analysis(RGB)

机译：彩色图像分析（RGB）测定辣椒（Capsicum frutescens L.）植物中的氮

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In order to investigate the suitable index of the diagnosis of pepper plants nitrogen status by color image analysis, a field experiment was conducted. In this study, six levels of nitrogen fertilization were established so as to induce nitrogen status in pepper plants. At the flowering and fruiting stages, total nitrogen was evaluated by laboratory analysis. The chlorophyll index was determined using a soil plant analysis development (SPAD)-502 chlorophyll meter. Also, color images were taken with a digital camera; the color images were processed in order to determine the averages of the red (R), green (G) and blue (B) colors. The result show that there were significant negative relations between?G/(R+G+B)?ratio of coverage image and the indexes of pepper nitrogen status, for example inorganic nitrogen in soil, total nitrogen of plant, nitrate concentration of leafstalk and SPAD readings at flowering and fruiting stages. Color image analysis provides an accurate and quick way for nitrogen estimation in pepper plants.
机译：为了通过彩色图像分析研究辣椒植物氮素状况诊断的适宜指标，进行了田间试验。在这项研究中，建立了六个氮肥水平，以诱导辣椒植物中的氮素状态。在开花和结果期，通过实验室分析评估总氮。使用土壤植物分析开发（SPAD）-502叶绿素仪测定叶绿素指数。另外，彩色图像是用数码相机拍摄的。对彩色图像进行处理，以确定红色（R），绿色（G）和蓝色（B）的平均值。结果表明，覆盖度图像的ΔG/（R + G + B）比值与胡椒氮素状态指数存在显着的负相关，例如土壤中的无机氮，植物总氮，叶柄硝酸盐浓度和土壤氮素含量。在开花和结果阶段的SPAD读数。彩色图像分析为辣椒植物中的氮估算提供了一种准确而快速的方法。

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