/**
* 绘制人脸框。
*/
private void showFrame2(LivenessModel model)
{
if (camemra1IsRgb)
{
Canvas canvas2 = textureViewOne.LockCanvas();
if (canvas2 == null)
{
textureViewOne.UnlockCanvasAndPost(canvas2);
return;
}
if (model == null)
{
canvas2.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureViewOne.UnlockCanvasAndPost(canvas2);
return;
}
FaceInfo[] faceInfos = model.getTrackFaceInfo();
ImageFrame imageFrame = model.getImageFrame();
if (faceInfos == null || faceInfos.Length == 0)
{
// 清空canvas
canvas2.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureViewOne.UnlockCanvasAndPost(canvas2);
return;
}
canvas2.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
FaceInfo faceInfo2 = faceInfos[0];
rectF.Set(getFaceRectTwo(faceInfo2, imageFrame));
// 检测图片的坐标和显示的坐标不一样，需要转换。
// mPreview[typeIndex].mapFromOriginalRect(rectF);
float yaw2 = Java.Lang.Math.Abs(faceInfo2.HeadPose[0]);
float patch2 = Java.Lang.Math.Abs(faceInfo2.HeadPose[1]);
float roll2 = Java.Lang.Math.Abs(faceInfo2.HeadPose[2]);
if (yaw2 > 20 || patch2 > 20 || roll2 > 20)
{
// 不符合要求，绘制黄框
paint.Color = (Color.Yellow);
string text = "请正视屏幕";
float width = paint.MeasureText(text) + 50;
float x = rectF.CenterX() - width / 2;
paint.Color = (Color.Red);
paint.SetStyle(Paint.Style.Fill);
canvas2.DrawText(text, x + 25, rectF.Top - 20, paint);
paint.Color = (Color.Yellow);
}
else
{
// 符合检测要求，绘制绿框
paint.Color = (Color.Green);
}
paint.SetStyle(Paint.Style.Stroke);
// 绘制框
canvas2.DrawRect(rectF, paint);
textureViewOne.UnlockCanvasAndPost(canvas2);
Canvas canvas = textureView.LockCanvas();
if (canvas == null)
{
textureView.UnlockCanvasAndPost(canvas);
return;
}
if (faceInfos == null || faceInfos.Length == 0)
{
// 清空canvas
canvas.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureView.UnlockCanvasAndPost(canvas);
return;
}
canvas.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureView.UnlockCanvasAndPost(canvas);
}
else
{
Canvas canvas = textureView.LockCanvas();
if (canvas == null)
{
textureView.UnlockCanvasAndPost(canvas);
return;
}
if (model == null)
{
// 清空canvas
canvas.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureView.UnlockCanvasAndPost(canvas);
return;
}
FaceInfo[] faceInfos = model.getTrackFaceInfo();
ImageFrame imageFrame = model.getImageFrame();
if (faceInfos == null || faceInfos.Length == 0)
{
// 清空canvas
canvas.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureView.UnlockCanvasAndPost(canvas);
return;
}
canvas.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
FaceInfo faceInfo = faceInfos[0];
rectF.Set(getFaceRectTwo(faceInfo, imageFrame));
// 检测图片的坐标和显示的坐标不一样，需要转换。
// mPreview[typeIndex].mapFromOriginalRect(rectF);
float yaw = Java.Lang.Math.Abs(faceInfo.HeadPose[0]);
float patch = Java.Lang.Math.Abs(faceInfo.HeadPose[1]);
float roll = Java.Lang.Math.Abs(faceInfo.HeadPose[2]);
if (yaw > 20 || patch > 20 || roll > 20)
{
// 不符合要求，绘制黄框
paint.Color = (Color.Yellow);
string text = "请正视屏幕";
float width = paint.MeasureText(text) + 50;
float x = rectF.CenterX() - width / 2;
paint.Color = (Color.Red);
paint.SetStyle(Paint.Style.Fill);
canvas.DrawText(text, x + 25, rectF.Top - 20, paint);
paint.Color = (Color.Yellow);
}
else
{
// 符合检测要求，绘制绿框
paint.Color = (Color.Green);
}
paint.SetStyle(Paint.Style.Stroke);
// 绘制框
canvas.DrawRect(rectF, paint);
textureView.UnlockCanvasAndPost(canvas);
Canvas canvas2 = textureViewOne.LockCanvas();
if (canvas2 == null)
{
textureViewOne.UnlockCanvasAndPost(canvas2);
return;
}
if (faceInfos == null || faceInfos.Length == 0)
{
// 清空canvas
canvas2.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureViewOne.UnlockCanvasAndPost(canvas2);
return;
}
canvas2.DrawColor(Color.Transparent, PorterDuff.Mode.Clear);
textureViewOne.UnlockCanvasAndPost(canvas2);
}
}