title: How to save a figure with high dpi/resolution using seaborn
body: <pre><code>import seaborn as sns
  sns_plot=sns.heatmap(dataframe.corr())
  sns_plot.figure.savefig('output_figure.png')
  </code></pre>
  <p>I have with the above piece of code, it worked for saving the image. But it is of less quality. How do I increase its dpi.</p>