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Machine Vision, 3rd Edition by E. R. Davies

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Inspection of Cereal Grains

Inspection of Cereal Grains

Inspection of cereal grains is an exceptionally mundane and repetitive task, and to some extent contrasts with many of the examples given in the previous chapter in that the emphasis is on detecting contaminants rather than finding manufacturing faults. This chapter presents three case studies that air and solve important theoretical questions.

Look out for:

• the limitations of the immediately obvious technique—global thresholding.

• the value of morphological filtering.

• the unusual need for median filtering as a morphological operation.

• the use of bar (linear feature) detectors for locating insects.

• how the vectorial bar detector operator is optimized.

• how sampling can be used ...

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