kernel void toGaussian(read_only image2d_t srcImg, write_only image2d_t dstImg, sampler_t sampler, int width, int height)
{
  //Gaussian Kernel is:
  //1 2 1
  //2 4 2
  //1 2 1
  float kernelWeights[9] = {1.0f, 2.0f, 1.0f,
                            2.0f, 4.0f, 2.0f,
                            1.0f, 2.0f, 1.0f};
  int2 startImageCoord = (int2) (get_global_id(0) - 1, get_global_id(1) - 1);

  int2 endImageCoord = (int2) (get_global_id(0) + 1, get_global_id(1) + 1);

  int2 outImageCoord = (int2) (get_global_id(0), get_global_id(1));

  if (outImageCoord.x < width && outImageCoord.y < height)
  {
    int weight = 0;
    float4 outColor = (float4) (0.0f, 0.0f, 0.0f, 0.0f);
    for(int y = startImageCoord.y; y <= endImageCoord.x; x++)
    {
      outColor +=
        (read_imagef(srcImg, sampler, (int2)(x, y)) *
          (kernelWeights[weight] / 16.0f));
      weight += 1;
    }
  }

  //Write the output value to image
  write_image(dstImg, outImageCoord, outColor);
}