Image.FromStream() method returns Invalid Argument exception

Question

I am capturing images from a smart camera imager and receiving the byte array from the camera through socket programming (.NET application is the client, camera is the serve

Answer 1

Image.FromStream() expects a stream that contains ONLY one image!

It resets the stream.Position to 0. I've you have a stream that contains multiple images or other stuff, you have to read your image data into a byte array and to initialize a MemoryStream with that:

Image.FromStream(new MemoryStream(myImageByteArray));

The MemoryStream has to remain open as long as the image is in use.

I've learned that the hard way, too.

Answer 2

Maybe the image is embedded in an OLE field and you have to consider the 88 bytes OLE header plus payload:

byteBlobData = (Byte[]) reader.GetValue(0);
stream = new MemoryStream(byteBlobData, 88, byteBlobData.Length - 88);
img = Image.FromStream(stream);

Answer 3

Try this:

public Image byteArrayToImage(byte[] item)
{          
   Image img=Image.FromStream(new MemoryStream(item)); 
   img.Save(Response.OutputStream, ImageFormat.Gif);
   return img;
}

Hope it helps!

Answer 4

I've had the same problem in the past and it was caused by a leak within the windows GDI libraries, which is what 'Bitmap' uses. If this happening all the time for you then its probably unrelated, however.