// Use this for initialization
void Start()
{
Texture2D imgTexture = Resources.Load("detect_blob") as Texture2D;
Mat imgMat = new Mat(imgTexture.height, imgTexture.width, CvType.CV_8UC1);
Utils.texture2DToMat(imgTexture, imgMat);
Debug.Log("imgMat dst ToString " + imgMat.ToString());
Mat outImgMat = new Mat();
FeatureDetector blobDetector = FeatureDetector.create(FeatureDetector.SIMPLEBLOB);
blobDetector.read(Utils.getFilePath("blobparams.yml"));
MatOfKeyPoint keypoints = new MatOfKeyPoint();
blobDetector.detect(imgMat, keypoints);
Features2d.drawKeypoints(imgMat, keypoints, outImgMat);
Texture2D texture = new Texture2D(outImgMat.cols(), outImgMat.rows(), TextureFormat.RGBA32, false);
Utils.matToTexture2D(outImgMat, texture);
gameObject.GetComponent <Renderer> ().material.mainTexture = texture;
}
void InitBlobDetector()
{
// Try to create the blob detector.
blobDetector = FeatureDetector.create(
FeatureDetector.SIMPLEBLOB);
if (blobDetector == null)
{
Debug.LogError(
"Unable to create blob detector");
Destroy(this);
return;
}
// The blob detector parameters must be put inta a yaml file for unity
string blobDetectorParams = @"%YAML:1.0
thresholdStep: 10.0
minThreshold: 50.0
maxThreshold: 220.0
minRepeatability: 2
minDistBetweenBlobs: 10.0
filterByColor: False
blobColor: 0
filterByArea: True
minArea: 50.0
maxArea: 5000.0
filterByCircularity: True
minCircularity: 0.8
maxCircularity: 3.4028234663852886e+38
filterByInertia: False
minInertiaRatio: 0.1
maxInertiaRatio: 3.4028234663852886e+38
filterByConvexity: False
minConvexity: 0.95
maxConvexity: 3.4028234663852886e+38
";
// Try to write the blob detector's parameters
// to a temporary file.
string path = Application.persistentDataPath +
"/blobDetectorParams.yaml";
File.WriteAllText(path, blobDetectorParams);
if (!File.Exists(path))
{
Debug.LogError(
"Unable to write blob " +
"detector's parameters to " +
path);
Destroy(this);
return;
}
// Read the blob detector's parameters from the
// temporary file.
blobDetector.read(path);
// Delete the temporary file.
File.Delete(path);
}
private void TryProcessImage(int index)
{
if (UseWebCam == false)
{
CurrentTexture = Sources[index];
}
else
{
CurrentTexture = webCamTexture;
}
using (Mat imgMat = new Mat(CurrentTexture.height, CurrentTexture.width, CvType.CV_8UC1))
using (FeatureDetector blobDetector = FeatureDetector.create(FeatureDetector.SIMPLEBLOB))
using (Mat outImgMat = new Mat())
using (MatOfKeyPoint keypoints = new MatOfKeyPoint())
{
if (CurrentTexture is Texture2D)
{
Utils.texture2DToMat(CurrentTexture as Texture2D, imgMat);
}
else if (CurrentTexture is WebCamTexture)
{
Utils.webCamTextureToMat(CurrentTexture as WebCamTexture, imgMat);
}
else
{
Utils.textureToMat(CurrentTexture, imgMat);
}
Debug.Log("imgMat dst ToString " + imgMat.ToString());
Imgproc.threshold(imgMat, imgMat, 0, 255, Imgproc.THRESH_BINARY | Imgproc.THRESH_OTSU);
Imgproc.erode(imgMat, imgMat, erodeMat, new Point(1, 1), 5);
blobDetector.read(Utils.getFilePath("blobparams.yml"));
blobDetector.detect(imgMat, keypoints);
Features2d.drawKeypoints(imgMat, keypoints, outImgMat);
KeyPoint[] points = keypoints.toArray();
ProcessKeyPoints(points, outImgMat);
Mat finalMat = outImgMat;
if (texture != null &&
(texture.width != finalMat.cols() || texture.height != finalMat.rows()))
{
DestroyImmediate(texture);
texture = null;
}
if (texture == null)
{
texture = new Texture2D(finalMat.cols(), finalMat.rows(), TextureFormat.RGBA32, false);
}
Utils.matToTexture2D(finalMat, texture);
gameObject.GetComponent <Renderer>().material.mainTexture = texture;
}
}
