title: How to multiply a constant double value with GpuMat in openCv?
body: <p>I am using OpenCv 2.4.6 Library with VS 2010. I compiled O  Cuda 4.2.9 on mypenCv this Library with Laptop and it works fine. Now i want to multiply 1.5 with cv::GpuMat . So how can i do that using OpenCv 2.4.6 in VS 2010 ? It is easy for cv::Mat. 
  Like Example</p>
  
  <p>cv::Mat mat =cv::imread("readImg.tiff",CV_LOAD_IMAGE_GRAYSCALE);<br>
  cv::GpuMat gpuMat(mat);
  cv::Mat newMat=mat*(1+0.5);</p>
  
  <p>now how can i do this mathamatical operation with cv::gpu::GpuMat gpuMat in OpenCv ? </p>