How to Convert From HEIC to JPG in Python on WIndows

code below convert and save the picture as png format

from PIL import Image
import pillow_heif

    heif_file = pillow_heif.read_heif("HEIC_file.HEIC")
    image = Image.frombytes(
        heif_file.mode,
        heif_file.size,
        heif_file.data,
        "raw",
    
    )

    image.save("./picture_name.png", format("png"))

As of today, I haven't found a way to do this with a Python-only solution. If you need a workaround, you can find any Windows command line utility that will do the conversion for you, and call that as a subprocess from Python.

Here is an example option using PowerShell: https://github.com/DavidAnson/ConvertTo-Jpeg

It's also pretty easy these days to write a .NET-based console app that uses Magick.NET. That's what I ended up doing.

Just was looking at the same topic. I came across this:

https://pypi.org/project/heic-to-jpg/

I haven't had time to look more into this, but thought I'd share this.

In the latest version of pillow_heic module, below code will work fine. only read_heif is replaced with read.

from PIL import Image

import pillow_heif

heif_file = pillow_heif.read(r"E:\image\20210914_150826.heic")

image = Image.frombytes(
    heif_file.mode,
    heif_file.size,
    heif_file.data,
    "raw",

)

image.save(r"E:\image\test.png", format("png"))

Please, use open_heif or PIL.Image.open() if you need some Pillow things to do with image.

pillow-heif supports lazy loading of data.

read_heif and read are slow for files containing multiply images, it will decode all of them during call.

P.S.: I am the author of pillow-heif.