×

Image processing for part inspection

  • US 4,547,897 A
  • Filed: 02/01/1983
  • Issued: 10/15/1985
  • Est. Priority Date: 02/01/1983
  • Status: Expired due to Fees
First Claim
Patent Images

1. The method of inspecting a manufactured item to determine a selected characteristic thereof comprising the steps of:

  • viewing an item with a color television camera to produce a video signal;

    selecting a predetermined color with a chromakeyer connected to the camera to receive the video signal and to produce a modified signal wherein the selected color is highlighted;

    assigning gray scale values based on hue to individual portions of the modified signal so that the highlighted portions receive higher gray scale values; and

    comparing the higher gray scale values with predetermined values to determine the selected characteristic when a match occurs.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×