How to remove labeling and tickering in WFDB, python?

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The plots have label and tick information and I'd like to remove them.

I downloaded ECG data from Pysionet(https://physionet.org/content/?topic=ecg) and try to analze the images. Since I just need the signal images, want to remove any other parts including labels and ticks. However, there are no parameters related to it and doesn't work with any plt options. How 开发者_运维问答could I get just the sinal images?