Vivek_Elango's profile - activity

@FooBar, MODELConvexityDefects is a custom getter and setter class.

Oh no I'm using 2.4.11 @LBerger

I have retrieved convexity defects and after referring to some questions asked here, I figured out that Convexity defect contains data in 4s, i.e., [startIndex, endIndex, farthestPoint, depth].

So I retrieved the all these values and drew circles at the points (except depth). Following is the code which I used to do that.

    for (int j = 0; j < convexDefect.toList().size(); j = j+4) {

        if(farPoint.y < a){

            MODELConvexityDefects convexityDefects = new MODELConvexityDefects();

             convexityDefects.setStartIndex(contours.get(boundPos).toList()
             .get(convexDefect.toList().get(j)));

            convexityDefects.setEndIndex(contours.get(boundPos).toList()
            .get(convexDefect.toList().get(j+1)));

            convexityDefects.setFarthestPoint(contours.get(boundPos).toList()
            .get(convexDefect.toList().get(j+2)));

            convexityData.add(convexityDefects);
            }
    }

    // Draws all the points from defect data
    MODELConvexityDefects convexityDefects;

    for (int i = 0; i < convexityData.size(); i++) {

        convexityDefects = new MODELConvexityDefects();
        convexityDefects = convexityData.get(i);

                    // Green 
        Core.circle(modifiedFrame, convexityDefects.getStartIndex(), 6, new Scalar(0,154,0));
                    // Orange 
        Core.circle(modifiedFrame, convexityDefects.getEndIndex(), 6, new Scalar(0,154,246)); 
                    // Red
        Core.circle(modifiedFrame, convexityDefects.getFarthestPoint(), 6, new Scalar(0,0,255));
    }

The output I got is not really desirable one. Please tell me what am I doing wrong here.

If you notice I'm not able to get the farthest point correctly and the thumb is completely neglected.

This really did solve my problem, probably something we wouldn't really notice. Good catch