Cuda Image average filter

Question

Average filter is windowed filter of linear class, that smooths signal (image). The filter works as low-pass one. The basic idea behind filter is for any elemen

Answer 1

Some Basic thoughts/steps:

1. Copy the Image data from the CPU to the GPU
2. Call a kernel to build the average for each line (horizontal) and store it in shared memory.
3. Call a kernel to build the average for each column (vertical) and store it in global memory.
4. Copy the data back to the CPU-Memory.

You should be able to scale this pretty easily with 2D-memory and multidimensional kernel-calls.