encode_png

torchvision.io.encode_png(input: Tensor, compression_level: int = 6) → Tensor

[DEPRECATED] Use TorchCodec instead.

Takes an input tensor in CHW layout and returns a buffer with the contents of its corresponding PNG file.

Warning

The image decoding and encoding capabilities of TorchVision are deprecated since torchvision 0.29 and will be removed in a future release. They are superseded by the more complete decoders and encoders of TorchCodec (from torchcodec 0.16). Please see this migration guide on how to migrate your code.

Parameters:

• input (Tensor[channels, image_height, image_width]) – int8 image tensor of c channels, where c must 3 or 1.

• compression_level (int) – Compression factor for the resulting file, it must be a number between 0 and 9. Default: 6

Returns:

A one dimensional int8 tensor that contains the raw bytes of the

PNG file.

Return type:

Tensor[1]