import numpy as np
beeld=np.tile([0.,0.,1.,1.],(4,1))
kernel=np.tile([-1.,0.,1.],(3,1))
uit=np.empty((2,2))
for i in range(2):
    for j in range(2):
        uit[i,j]=np.sum(beeld[i:i+3,j:j+3]*kernel)
relu=np.maximum(0,uit)
print("kruiscorrelatie",uit)
print("ReLU",relu,"2x2 maxpool",relu.max())
print("parameters conv",kernel.size+1,"densezelfdeoutput",16*4+4)