沿3D阵列中的轴计数值大于2D阵列的阈值

I have a 3D array of dimensions (200,200,3). These are images of dimensions (200,200) stacked using numpy.dstack. I would like to count the number of values along axis=2 that are greater than a corresponding 2D threshold array of dimensions (200,200). The output counts array should have dimensions (200,200). Here is my code so far.I have a 3D array of dimensions (200,200,3). Th