In feature extraction, a new "blemish" model is proposed, which takes several features into account, such as the contrast, area, location, outline, shape and the luminance uniformity of the object.
在特征提取中，综合考虑了目标区域的对比度、面积、位置、轮廓、形状和亮度均匀性等特征量，建立了一种新的斑痕缺陷模型。
Using Shape edge template matching technique to find the feature point and abstract the area of ROI automatically, calculate number of the pixels that the connected areas have to remove noise further.
提出了利用图形边缘模板匹配搜寻特征点自动提取ROI 区域，通过计算连通区域包含像素进一步去除噪声的方法。
In terms of the leaves' shape difference of corn seedling and weed seedling in the field, the approach that used shape feature factors of area and compactness to classify corn and weed was studied.
根据玉米田中玉米和杂草幼苗叶片的形状特征，研究了利用形状特征因子——面积和分散度识别玉米和杂草的方法。
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