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39 lines
1006 B
Plaintext
39 lines
1006 B
Plaintext
import gab.opencv.*;
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OpenCV opencv;
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ArrayList<Line> lines;
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void setup() {
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PImage src = loadImage("film_scan.jpg");
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src.resize(0, 800);
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size(src.width, src.height);
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opencv = new OpenCV(this, src);
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opencv.findCannyEdges(20, 75);
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// Find lines with Hough line detection
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// Arguments are: threshold, minLengthLength, maxLineGap
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lines = opencv.findLines(100, 30, 20);
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}
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void draw() {
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image(opencv.getOutput(), 0, 0);
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strokeWeight(3);
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for (Line line : lines) {
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// lines include angle in radians, measured in double precision
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// so we can select out vertical and horizontal lines
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// They also include "start" and "end" PVectors with the position
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if (line.angle >= radians(0) && line.angle < radians(1)) {
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stroke(0, 255, 0);
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line(line.start.x, line.start.y, line.end.x, line.end.y);
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}
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if (line.angle > radians(89) && line.angle < radians(91)) {
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stroke(255, 0, 0);
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line(line.start.x, line.start.y, line.end.x, line.end.y);
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}
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}
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}
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