/// <summary>
/// 对图片做opencv的人脸分析
/// </summary>
/// <param name="imgTag"></param>
public static void OpenCVAnalysis(ImageTag imgTag)
{
var imageFile = imgTag.GetTrueImageFile();
var image = Cv2.ImRead(imageFile);
var tps = new List <TagPart>();
foreach (var face in FaceDetect.OpenCvDetectMultiScale(image))
{
var body = AITag.Common.Utils.GetBodyRect(face, (double)(64 - 8) / 128, image.Width, image.Height);
if (body != Rect.Empty)
{
tps.Add(new TagPart
{
Face = face,
Body = body
});
}
}
if (tps.Count == 0)
{
imgTag.Status = "opencv_fail";
}
else
{
imgTag.OpenCvParts = tps;
imgTag.Status = "opencv_finish";
}
}
void LoadPageShow()
{
currentShowTag = images[currentIndex];
var image = Cv2.ImRead(currentShowTag.GetTrueImageFile());
var tps = currentShowTag.OpenCvParts;
if (tps == null || tps.Count == 0)
{
// 网上有看到有人先转灰度再识别，实际效果也没好多少 var gray_img = image.CvtColor(ColorConversionCodes.RGB2GRAY);
var ract = FaceDetect.OpenCvDetectMultiScale(image);
tps = new List <TagPart>();
foreach (var face in ract)
{
var body = AITag.Common.Utils.GetBodyRect(face, (double)(64 - 8) / 128, image.Width, image.Height);
if (body != Rect.Empty)
{
tps.Add(new TagPart
{
Face = face,
Body = body
});
}
}
}
if (tps.Count == 0)
{
UpdateIamgeTagStatus(currentShowTag, "opencv_fail");
btnNextImage_Click(null, null);
return;
}
currentShowTag.OpenCvParts = tps;
panelParts.Children.Clear();
foreach (var item in tps)
{
var face = item.Face;
var body = item.Body;
Cv2.Rectangle(image, face, Scalar.Red);
var i2 = image.Clone(body);
var utp = new UserTagParts();
utp.InitData(item, i2);
panelParts.Children.Add(utp);
Cv2.Rectangle(image, body, Scalar.Red);
var ioa = InputOutputArray.Create(image);
// 顺便标注一下尺寸
Cv2.PutText(ioa, $"top:{face.Top} left:{face.Left} w:{face.Width} h:{face.Height}",
new Point(face.Left, face.Bottom + 2),
HersheyFonts.HersheySimplex, 1, Scalar.Blue);
ioa = InputOutputArray.Create(image);
Cv2.PutText(ioa, $"top:{body.Top} left:{body.Left} w:{body.Width} h:{body.Height}",
new Point(body.Left, body.Top - 10),
HersheyFonts.HersheySimplex, 1, Scalar.Blue);
}
imgShow.Source = image.MatToBitmapImage();
panelCurrentImgTags.Children.Clear();
if (!string.IsNullOrEmpty(currentShowTag.TagsName))
{
AppendTagtoCurrentTagPanel(currentShowTag.TagsName);
}
}