Changes

<pre>

__global__ void reflectImgH(int* a, int* b, int rows, int cols) {

int i = blockIdx.x * blockDim.x + threadIdx.x;

}

__global__ void reflectImgV(int* a, int* b, int rows, int cols) {

int i = blockIdx.x * blockDim.x + threadIdx.x;