def freeze_all_except_classifiers(self):
self.freeze_weights_extractor()
freeze_weights(self.fconv_block)
def freeze_weights_extractor(self):
freeze_weights(self.conv_block1)
freeze_weights(self.conv_block2)
freeze_weights(self.conv_block3)
freeze_weights(self.conv_block4)
freeze_weights(self.conv_block5)