How to create a TIFF file with JPEG compression, JPEG2000 compression, or other compression methods in Python?

Describe the question.

Hello, thank you for viewing this question. I need to create some TIFF files with JPEG or JPEG2000 compression. After learning about nvImageCodec, I tried to study it. However, I couldn't find suitable answers in the official documentation at https://docs.nvidia.com/cuda/nvimagecodec/samples/python_samples.html and https://docs.nvidia.com/cuda/nvimagecodec/py_api.html . Since I don't know how to write C or C++ code, I came here to ask. Thank you for your help.

Here is my Python code snippet:

import numpy as np
from nvidia import nvimgcodec



tif_file = r"HH_2.tiff"
# The image is 8-bit with 3 channels.

decodeparams = nvimgcodec.DecodeParams(allow_any_depth=True)

decoder = nvimgcodec.Decoder()

nv_img_0 = decoder.decode(tif_file, params=decodeparams)

img_0 = np.array(nv_img_0.cpu())


encoder = nvimgcodec.Encoder()

codec = 'tiff'
encode_params_0 = nvimgcodec.EncodeParams(quality_type=nvimgcodec.QualityType.LOSSLESS)

encoder.write("HH_nv.tiff", img_0, codec, params=encode_params_0)
# It outputs an uncompressed TIFF image.

encode_params_1 = nvimgcodec.EncodeParams(quality_value=1)

encoder.write("HH_LZW_nv.tiff", img_0, codec, params=encode_params_1)
# The output is a TIFF image compressed with LZW.

Check for duplicates

• I have searched the open bugs/issues and have found no duplicates for this bug report

Start with the linked Python samples and Python API reference, then trace the EncodeParams usage shown in the issue. Determine whether the documented API covers the requested TIFF compression methods and make the supported procedure and limitations clear for Python users.