EmguCV + Unity Open WebCam is Error; - unity3d

Question

I use EmguCV open webcam in unity.
But it's fps is low much.
this is my code ↓
private Texture2D texture;
private Capture capture;
private Color32[] color = new Color32[640*480];
// Use this for initialization
void Start () {
texture = new Texture2D (640, 480);
capture = new Capture ();
}
// Update is called once per frame
void Update () {
Image<Bgr, Byte> currentFrame = capture.QueryFrame();
Bitmap bitmapCurrentFrame = currentFrame.ToBitmap();
Image<Bgra, Byte> img = new Image<Bgra, Byte> (bitmapCurrentFrame);
for(int y=0; y<480; y++){
for(int x=0; x<640; x++){
int index = y+x*480;
print(index+";"+x+";"+y);
//byte b = img.Data[x,y,0];
color[index].r = img.Data[x,y,2];
color[index].g = img.Data[x,y,1];
color[index].b = img.Data[x,y,0];
color[index].a = 0xff;
}
}
texture.SetPixels32 (color);
texture.Apply (false);
renderer.material.mainTexture = texture;
}
i don't know why fps is so low...
and why my boss like EmguCV with Unity, why he don't use Unity-WebCamTexture...
OKAY,i really thank you for your read.
Hope, I can get some answer.

Answer 1

Look at Texture2D.LoadRawTextureData. It has no proper docs, so here's a snippet:
Texture2D tex = new Texture2D(width, height, format, false, true);
tex.LoadRawTextureData(buffer);
tex.Apply(false, true);
Buffer must be in the correct hardware format. For the format variable look at the list of formats that unity accepts.