Ball point writing quality analysis

Details Ball point writing quality analysis Ball point writing quality analysis

1994-04-22

1995-11-14

Couso, Yon J.

Image analysis

Applications

Document or print quality inspection

382168, G06K 946

Patent

active

054674085

ABSTRACT:
A method of analyzing the writing quality of a ball point pen for ink laydown, blobbing, and degree of inconsistency employs a computer and an image analysis software package capable of assembling a pixel gray level distribution known as a histogram. The distribution of pixel gray value for a writing sample is manipulated and analyzed, the values then being compared to a range of pre-established values.

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patent: 5073954 (1991-12-01), Van Tyne
patent: 5133622 (1992-07-01), Weideman
patent: 5144566 (1992-09-01), Anderson
patent: 5212741 (1993-05-01), Barski
patent: 5321769 (1994-06-01), Takahashi

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