private List <Cv.Rect> MergeRects(List <Cv.Rect> rects, int width, int height)
{
List <int> ignoreIndices = new List <int>();
rects.Sort((l, r) => l.X.CompareTo(r.X));
for (int i = 0; i < rects.Count; i++)
{
if (ignoreIndices.Contains(i))
{
continue;
}
for (int j = i + 1; j < rects.Count; j++)
{
if (rects[j].Height < 5 || rects[j].Width < 5)
{
ignoreIndices.Add(j);
continue;
}
var hExpand = (int)Math.Round(width * 0.01, 0);
var r = new Cv.Rect(rects[j].X, rects[j].Y, rects[j].Width, rects[j].Height);
r.Inflate(hExpand / 2, 0);
if (rects[i].IntersectsWith(r))
{
var union = rects[i].Union(rects[j]);
if (union.Width < width * 0.30 && union.Height < height * 0.05)
{
rects[i] = union;
ignoreIndices.Add(j);
}
}
}
}
var merged = new List <Cv.Rect>();
for (int i = 0; i < rects.Count; i++)
{
rects[i] = FixInvalidRects(rects[i], width, height);
if (!ignoreIndices.Contains(i))
{
merged.Add(rects[i]);
}
}
return(merged);
}
/// <summary>
/// このCvRectを指定の量だけ膨らませる
/// </summary>
/// <param name="rect">対象の矩形</param>
/// <param name="x">水平方向の膨張量</param>
/// <param name="y">垂直方向の膨張量</param>
/// <returns></returns>
#else
/// <summary>
/// Creates and returns an inflated copy of the specified CvRect structure.
/// </summary>
/// <param name="rect">The Rectangle with which to start. This rectangle is not modified. </param>
/// <param name="x">The amount to inflate this Rectangle horizontally. </param>
/// <param name="y">The amount to inflate this Rectangle vertically. </param>
/// <returns></returns>
#endif
public static Rect Inflate(Rect rect, int x, int y)
{
rect.Inflate(x, y);
return(rect);
}