Process and apparatus for providing data indicative of the shape of leaf-like article
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United States of America Patent
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-
Apr 27, 1982
Grant Date -
N/A
app pub date -
Apr 3, 1980
filing date -
Apr 11, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process and apparatus for providing digital data indicative of the contour of a leaf-like article, e.g. a tobacco leaf, and the flaws (holes) that it may comprise, from a video signal composed of image lines. The video signal is coded by comparing same with thresholds so as to detect transitions. The number n of points pertaining to a hole is compared with a threshold n.sub.1, firstly within a line X, then in successive lines X, X+1, and the code is converted to 'flaw' when n.gtoreq.n.sub.1. Only when they precede a transition, the coded signals are stored in a memory in the order of appearance of the lines. The stored signals are readout in the opposite order, whereby all the codes pertaining to a given flaw can be rendered uniform and the codes pertaining to unsignificant flaws can be suppressed.
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