6.g.
A blob analysis can carried out cyclic operation based these determined parameters that can be
used count blobs, generally detect positions and colors simply perform measurements the blobs
themselves. Code Reader reads and interprets all common
one-dimensional (barcode) and two-dimensional codes (e.
Code quality ("code grading") also assessed according many different criteria based ISO
15415, ISO 15416 and ISO 29158.
Vision function Blob blob analysis function for detecting and segmenting blobs image using geo-
metric and color parameters well for extracting features from them.
Blob makes possible teach-in blobs based the following parameters (procedure for blob analysis):
• Thresholds for grayscale values (MeanGrayValue)
• Blob shape (morphology)
• Thresholds for size (AreaMin/Max) (rough reduction)
• Selection according shape and fitting
• Calculate the geometric features.6. code).2 Blob
A blob (Binary Large Object) area contiguous pixels with the same defined grayscale value range.23
.
Automatic optimization the predefined parameters runtime can increase the detection speed.
7.1 Code reader
Vision function Code Reader generic data code reader.Function description
7.
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