Create Image<Bgr, Byte> in Xamarin

[firedeepan]

I am trying to construct an Image<Bgr, Byte> instance from byte[].

var img = new Image<Bgr, Byte>(width, height);
img.Bytes = imageBytes;

But it doesn't create the correct EmguCV image representation. I tried the same using a stream as well as SKBit, but couldn't get it to work. However, it works perfectly when creating it from a file path as shown below.

var img = new Image<Bgr, Byte>(imgPath);

Appreciate your help with this.

[emgucv]

For the Bytes property, you need to pass the raw pixel data. In the above case, it need to be a byte array of 3 x width x height arranged in RGB format. Passing the Jpeg stream will not work.

If the imageBytes is JPEG stream instead of raw pixel data, you need to decode the jpeg data by calling:

Mat img= new Mat();
CvInvoke.Imdecode(jpegBytes, Emgu.CV.CvEnum.ImreadModes.Color, img)

[emgucv]

Closing ticket now.