//计算需要实际检测的屏幕区域
//只检测瞄准位置的一小块窗口，提升检测效率
public void CalDetectionRect(int w, int h)
{
if (w > 0 && h > 0 && this.rawDetectionRect.w > 0 && this.rawDetectionRect.h > 0 && w <= this.rawDetectionRect.w && h <= this.rawDetectionRect.h)
{
//获取到窗口坐标
this.detectionRect = new DetectionRect();
//裁剪窗口，新算法，先算出屏幕中心点，只检查屏幕正中的一小块区域，提升检测速度
int centX = this.rawDetectionRect.x + this.rawDetectionRect.w / 2;
int centy = this.rawDetectionRect.y + this.rawDetectionRect.h / 2;
this.detectionRect.x = centX - w / 2;
this.detectionRect.w = w;
//检测区域在中心点稍微向上偏移
this.detectionRect.y = centy - (h / 2 + h / 10);
this.detectionRect.h = h;
}
if (this.detectGraphics != null)
{
this.detectGraphics.Dispose();
}
if (this.detectBitmap != null)
{
this.detectBitmap.Dispose();
}
//初始化全局检测图像处理对象
this.detectBitmap = new Bitmap(this.detectionRect.w, this.detectionRect.h);
this.detectGraphics = Graphics.FromImage(detectBitmap);
}
public long toltalMillis; //检测执行的时间
public void setValues(DetectionRect rawDetectionRect1, DetectionRect detectionRect1, Mat frameMat1, List <ObjectPosRect> objectPosRects1, ObjectPosRect maxConfidencePos1, int maxPersonW1, long toltalMillis1)
{
detectionResult4Rect = new DetectionResult4Rect();
detectionResult4Rect.rawDetectionRect = rawDetectionRect1;
detectionResult4Rect.detectionRect = detectionRect1;
detectionResult4Rect.maxConfidencePos = maxConfidencePos1;
detectionResult4Rect.maxPersonW = maxPersonW1;
frameMat = frameMat1;
objectPosRects = objectPosRects1;
toltalMillis = toltalMillis1;
}
//设置需要检测的屏幕区域
public void SetSrcScreenRect(DetectionRect srcRect)
{
this.rawDetectionRect = srcRect;
if (srcRect.w > 0 && srcRect.h > 0)
{
//游戏者的位置的x轴中心点
//对于绝地求生，在屏幕下方靠左一点，大概 860/1920处
playerCentX = srcRect.w * 860 / 1920 - srcRect.x;
}
//计算需要实际检测的屏幕区域
CalDetectionRect(290, 230);
}
public ScreenDetection(Form mainForm, PictureBox outPictureBox)
{
this.mainForm = mainForm;
this.outPictureBox = outPictureBox;
this.detectionNet = CvDnn.ReadNetFromTensorflow(modelFile, configFile);
//this.detectionNet = CvDnn.ReadNetFromTensorflow(modelFile);
//this.detectionNet.SetPreferableBackend(Backend.DEFAULT);
//this.detectionNet.SetPreferableTarget(Target.CPU);
this.detectionNet.SetPreferableBackend(Backend.CUDA);
this.detectionNet.SetPreferableTarget(Target.CUDA);
this.labelNames = File.ReadAllLines(labelFile)
.Select(line => line.Split('\n').Last())
.ToArray();
//设置初始检测区域
rawDetectionRect = new DetectionRect();
//缺省使用使用全屏作为工作屏幕
rawDetectionRect.setValues(0, 0, 900, 760);
SetSrcScreenRect(rawDetectionRect);
}