python了解集合网络如何创建具有卷积层的特性。

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import numpy as np
from itertools import productdef show_kernel(kernel, label=True, digits=None, text_size=28):# Format kernelkernel = np.array(kernel)if digits is not None:kernel = kernel.round(digits)# Plot kernelcmap = plt.get_cmap('Blues_r')plt.imshow(kernel, cmap=cmap)rows, cols = kernel.shapethresh = (kernel.max()+kernel.min())/2# Optionally, add value labelsif label:for i, j in product(range(rows), range(cols)):val = kernel[i, j]color = cmap(0) if val > thresh else cmap(