TensorFlow 1 version View source on GitHub

Function for decode_bmp, decode_gif, decode_jpeg, and decode_png.
    contents, channels=None, dtype=tf.dtypes.uint8, name=None,

Detects whether an image is a BMP, GIF, JPEG, or PNG, and performs the appropriate operation to convert the input bytes string into a Tensor of type dtype.


  • contents: 0-D string. The encoded image bytes.
  • channels: An optional int. Defaults to 0. Number of color channels for the decoded image.
  • dtype: The desired DType of the returned Tensor.
  • name: A name for the operation (optional)
  • expand_animations: Controls the shape of the returned op's output. If True, the returned op will produce a 3-D tensor for PNG, JPEG, and BMP files; and a 4-D tensor for all GIFs, whether animated or not. If, False, the returned op will produce a 3-D tensor for all file types and will truncate animated GIFs to the first frame.


Tensor with type dtype and a 3- or 4-dimensional shape, depending on the file type and the value of the expand_animations parameter.


  • ValueError: On incorrect number of channels.