tf.io.encode_png

PNG-encode an image.

tf.io.encode_png(
    image, compression=-1, name=None
)

image is a rank-N Tensor of type uint8 or uint16 with shape batch_dims + [height, width, channels], where channels is:

  • 1: for grayscale.
  • 2: for grayscale + alpha.
  • 3: for RGB.
  • 4: for RGBA.

The ZLIB compression level, compression, can be -1 for the PNG-encoder default or a value from 0 to 9. 9 is the highest compression level, generating the smallest output, but is slower.

image A Tensor. Must be one of the following types: uint8, uint16. Rank N >= 3 with shape batch_dims + [height, width, channels].
compression An optional int. Defaults to -1. Compression level.
name A name for the operation (optional).

A Tensor of type string.