image_scaling.cu has a bug

[fancyerii]

this line:

returnValue = (cudaError_t)(returnValue | cudaMemcpy( cu_array, data, height * width * sizeof(unsigned char), cudaMemcpyHostToDevice));

should be:

returnValue = cudaMemcpyToArray(cu_array, 0, 0, data, height * width * sizeof(unsigned char), cudaMemcpyHostToDevice);