| 摘要 |
The method involves using an image with an essentially uniform pattern of pixels on an essentially uniform contrasting background. The image is scanned along a line (delta) of the image starting at an initial pixel (y1). For each pixel (Pi) of order yi a primary function ÄE(a,yi),V(a,yi)Ü is calculated as accumulated sums in memory calculated at intervals along the line. A secondary function is derived allowing the calculation and display of the centre line of the image and its half width at key locations. |
