Description Usage Arguments Value
Applies a linear convolution filter to identify vertical linear features in the pixel map.
1 2 | find.columns(px, kernel.size = 5, midline = 1024.5, min.length = 3 *
kernel.size, max.sep = 100)
|
px |
Data frame containing pixel coordinates to be grouped |
kernel.size |
Edge length of square kernel to be used in convolution. Default is 5 (aims to pick up line segments of length 5 or greater) |
midline |
Location of panel midline, which electrically separates the upper and lower panels, and so cannot be crossed by column defects. Default is 1024.5; if the detector has no midline separation, enter NA. |
min.length |
Minimum length of segment to retain after convolution. Default is 3 * kernel size. |
Data frame px, with column 'f.type' labelling columns found as feature type 'line.c'
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