对于给定的图像，各种过滤器和ca类型的组合可以生成更好或更差的结果。
For a given image, different combinations of filters and types of CA could produce better or worse results.
图中包括了使用对氧原子放射物敏感的过滤器记录的窄频带图像，以蓝绿色表示，而氢原子以红色表示。
It includes narrowband images recorded using filters sensitive to emission from oxygen atoms, shown in blue-green hues, and hydrogen atoms in red.
给系统输入未经描述的大量图像，当输出的图像与输入的相似的时候，系统就知道它找到了合适的过滤器。
Instead, the system is shown lots of pictures without being told what they depict. It knows it is on to a promising filter when the output image resembles the input.
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