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weaming/dji-dng-to-tiff.py

Created October 19, 2022 17:35
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  1. weaming renamed this gist Oct 19, 2022. 1 changed file with 0 additions and 0 deletions.
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  2. weaming created this gist Oct 19, 2022.
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    #!/usr/bin/env python3
    # For M1:
    #!/usr/bin/arch -x86_64 /Library/Frameworks/Python.framework/Versions/3.10/bin/python3

    """
    Batch convert DNG to TIFF.
    Install dependencies:
    python3 -m pip install numpy cython imageio
    For M1:
    1. download & install "macOS 64-bit universal2 installer" via https://www.python.org/downloads/release/python-3108/
    2. use the universal2 version python to install dependencies:
    /usr/bin/arch -x86_64 /Library/Frameworks/Python.framework/Versions/3.10/bin/python3 -m pip install numpy cython imageio
    /usr/bin/arch -x86_64 /Library/Frameworks/Python.framework/Versions/3.10/bin/python3 -m pip install rawpy
    """

    import os
    import rawpy
    import imageio

    for infile in os.listdir("./"):
    if infile[-3:] == "DNG":
    outfile = infile[:-3] + "tiff"
    raw = rawpy.imread(infile)
    print(infile, '==>', outfile)

    # https://letmaik.github.io/rawpy/api/rawpy.Params.html#rawpy.Params
    rgb = raw.postprocess(
    use_camera_wb=True,
    half_size=False,
    no_auto_bright=False,
    output_bps=16,
    output_color=rawpy.ColorSpace.ProPhoto,
    )
    imageio.imsave(outfile, rgb)