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Blob(二进制大对象)是指具有相同灰度值范围的连续像素区域。
视觉功能 Blob 是一个 blob 分析功能,用于使用几何和颜色参数检测和分割图像中的 blob,并从中提取特征。
Blob 可以根据以下参数(blob 分析程序)教导 blob:
•灰度值阈值(MeanGrayValue)
•Blob 的形状(形态)
•大小阈值(AreaMin/Max)(粗略缩小)
•根据形状和拟合度进行选择
•缩减到预定义的最大数量
•计算几何特征。
根据这些确定的参数,可循环执行 Blob 分析,用于计数 Blob、检测位置和颜色,或对 Blob 本身进行测量。
有关 Blob 使用的寄存器概览,请参阅寄存器概览 部分。
信息:有关 Blob 使用的寄存器概览,请参阅寄存器概览部分:
有关视觉功能的使用案例,请参阅 Blob - Teach-in 和后续对象搜索。
有关视觉功能的常见问题,请参阅 Blob 常见问题。
A blob (Binary Large Object) is an area of contiguous pixels with the same defined grayscale value range.
Vision function Blob is a blob analysis function for detecting and segmenting blobs in an image using geometric and color parameters as well as for extracting features from them.
Blob makes it possible to teach-in blobs based on the following parameters (procedure for a blob analysis):
•Thresholds for grayscale values (MeanGrayValue)
•Blob shape (morphology)
•Thresholds for size (AreaMin/Max) (rough reduction)
•Selection according to shape and fitting
•Reduction to predefined maximum number
•Calculate the geometric features.
A blob analysis can be carried out in cyclic operation based on these determined parameters that can be used to count blobs, generally detect positions and colors or simply perform measurements of the blobs themselves.
For an overview of the registers used by Blob, see section Overview of registers .
Information:
For vision function use cases, see Blob - Teach-in and subsequent object search.
For FAQ about the vision function, see Blob FAQ.