logger.py 文件源码

def image_summary(self, tag, images, step):
    """Log a list of images."""

    img_summaries = []
    for i, img in enumerate(images):
      # Write the image to a string
      try:
        s = StringIO()
      except:
        s = BytesIO()
      scipy.misc.toimage(img).save(s, format="png")

      # Create an Image object
      img_sum = tf.Summary.Image(encoded_image_string=s.getvalue(),
                                 height=img.shape[0],
                                 width=img.shape[1])
      # Create a Summary value
      img_summaries.append(tf.Summary.Value(tag='%s/%d' % (tag, i), image=img_sum))

    # Create and write Summary
    summary = tf.Summary(value=img_summaries)
    self.writer.add_summary(summary, step)