| public static BitwiseOr ( InputArray src1, InputArray src2, OutputArray dst, InputArray mask = null ) : void | ||
| src1 | InputArray | |
| src2 | InputArray | |
| dst | OutputArray | |
| mask | InputArray | |
| return | void | |
/// <summary>
/// Filter a image with the specified label values.
/// </summary>
/// <param name="src">Source image.</param>
/// <param name="dst">Destination image.</param>
/// <param name="labelValues">Label values.</param>
/// <returns>Filtered image.</returns>
public Mat FilterByLabels(Mat src, Mat dst, IEnumerable <int> labelValues)
{
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
if (dst == null)
{
throw new ArgumentNullException(nameof(dst));
}
if (labelValues == null)
{
throw new ArgumentNullException(nameof(labelValues));
}
var labelArray = labelValues.ToArray();
if (labelArray.Length == 0)
{
throw new ArgumentException("empty labelValues");
}
foreach (var labelValue in labelArray)
{
if (labelValue < 0 || labelValue >= LabelCount)
{
throw new ArgumentException("0 <= x < LabelCount");
}
}
// マスク用Matを用意し、Andで切り抜く
using (var mask = GetLabelMask(labelArray[0]))
{
for (var i = 1; i < labelArray.Length; i++)
{
using (var maskI = GetLabelMask(labelArray[i]))
{
Cv2.BitwiseOr(mask, maskI, mask);
}
}
src.CopyTo(dst, mask);
return(dst);
}
}
