使用Python借助pillow-heif库把HEIC格式图片转化为JPEG格式图片

devSteven

• 背景介绍
  HEIC，是iOS 11更新后，iPhone 7及其后硬件，在拍摄照片时的默认图像存储格式。全称为High Efficiency Image Format，是一种用于图像存储的格式。它是由苹果公司开发的，主要用于iOS系统，如iPhone和iPad。HEIC格式于2011年首次推出，经过多年的发展和完善，现在已经被广泛使用。

• HEIC格式的优势

  • 1.更高的压缩比：与JPEG格式相比，HEIC格式具有更高的压缩比，能够在不损失图像质量的情况下，将图片大小减少50%-60%。这对于存储空间有限的移动设备来说，无疑是非常重要的。

  • 2.更低的功耗：由于HEIC格式的压缩算法更加高效，所以在处理图片时，能够降低设备的功耗，延长电池寿命。

  • 3.更快的加载速度：由于HEIC格式的高效性，使用该格式的图片在加载时速度更快，能够为用户提供更好的浏览体验。

尽管HEIC格式在iOS设备上表现出色，但是它并不被所有设备所支持。特别是Windows系统和一些较老的Android设备，可能无法直接打开HEIC格式的图片。此时，用户需要安装相应的解码器或使用第三方工具进行转换。

作为会Python的技术宅怎么会让第三方带广告软件给石化了？不存在的。

下面咱们用Python代码借助 pillow_heif类库，来把HEIC格式的图片解码并转换HEIC格式的图片为JPEG格式的图片。

from PIL import Image
import pillow_heif

def heic_to_jpg(input_file, output_file):
    heif_file = pillow_heif.read_heif(input_file)
    image = Image.frombytes(
        heif_file.mode, 
        heif_file.size, 
        heif_file.data,
        "raw",
        heif_file.mode,
        heif_file.stride,
    )
    image.save(output_file, "JPEG")

# 调用方式
heic_to_jpg("input.HEIC", "output.jpg")

通过上面的代码，咻的一下图片就转出来了。

接下来可能我手头不只有一张图片需要转换，我有一个文件夹的图片都需要去转换成JPG，欻欻欻。。。。代码来了：

from PIL import Image
import pillow_heif
import os

def recycle_convert(org_path, dst_path):
   if os.path.isdir(org_path):
        file_list= os.listdir(org_path)
        for idx, file in enumerate(file_list):
            sub_path = os.path.join(org_path, file)
            recycle_convert(sub_path,dst_path)
   elif os.path.isfile(org_path):
        path,filename=os.path.split(org_path)
        name,ext=os.path.splitext(filename)
        if ext == ".HEIC" or ext == ".heic":
            heif_file = pillow_heif.read_heif(org_path)
            image = Image.frombytes(
                heif_file.mode, 
                heif_file.size, 
                heif_file.data,
                "raw",
                heif_file.mode,
                heif_file.stride,
            )
            file_path=os.path.join(dst_path,f"{name}.jpg")
            print(file_path)
            image.save(file_path,"JPEG")
        else:
            print(f"{org_path}is error format!")
        pass

def main():
    #目标图片文件夹路径
    dst_path = "D:\output"
    if os.path.exists(dst_path) is False:
        os.makedirs(dst_path)
        pass
    #原始图片文件夹路径
    org_path = "D:\input"
    recycle_convert(org_path,dst_path)
    pass

if __name__ == '__main__':
    main();

PS:
pillow-heif 支持Python 3.8至3.13版本，以及Windows、macOS（包括M1芯片）、Linux和Alpine Linux系统。
安装它 pip install -U pillow-heif

想要学习更多的pillow-heif使用方法还是去阅读官方文档吧。

dickyuan

为什么 不把代码写成两个功能 一个是便利当前目录下所有文件，识别后缀后转换成JPG，
另一个功能就是  拖动图片到EXE上，可以直接转换图片 这样也很方便。
这两种方法都合成一个EXE打包 就会很方便

xixicoco

要3.8以上的python

aiguohou

很好，可能会用到，收藏了

devSteven

dickyuan 发表于 2024-8-22 18:04
为什么 不把代码写成两个功能 一个是便利当前目录下所有文件，识别后缀后转换成JPG，
另一个功能就是  拖 ...

打包的软件可太多了，发出来仅仅是为了技术交流学习以及代码的改进。
我用过的XnConvert这个软件就很不错了，该有的功能都有了。

logga

其实没必要这么费事  FileConverter一点就能解决

JARK006

可以试试我这个看图软件，支持heif,avif等新格式 https://www.52pojie.cn/thread-1956185-1-1.html

HuiG

48962 WARNING: Execution of 'CopyIcons' failed on attempt #1 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.05 second(s)...
49015 WARNING: Execution of 'CopyIcons' failed on attempt #2 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.06 second(s)...
49072 WARNING: Execution of 'CopyIcons' failed on attempt #3 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.06 second(s)...
49131 WARNING: Execution of 'CopyIcons' failed on attempt #4 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.06 second(s)...
49195 WARNING: Execution of 'CopyIcons' failed on attempt #5 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.07 second(s)...
49263 WARNING: Execution of 'CopyIcons' failed on attempt #6 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.07 second(s)...
49335 WARNING: Execution of 'CopyIcons' failed on attempt #7 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.08 second(s)...
49413 WARNING: Execution of 'CopyIcons' failed on attempt #8 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.08 second(s)...
49498 WARNING: Execution of 'CopyIcons' failed on attempt #9 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.09 second(s)...
49589 WARNING: Execution of 'CopyIcons' failed on attempt #10 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.10 second(s)...
49691 WARNING: Execution of 'CopyIcons' failed on attempt #11 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.11 second(s)...
49803 WARNING: Execution of 'CopyIcons' failed on attempt #12 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.12 second(s)...
49929 WARNING: Execution of 'CopyIcons' failed on attempt #13 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.14 second(s)...
50072 WARNING: Execution of 'CopyIcons' failed on attempt #14 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.17 second(s)...
50240 WARNING: Execution of 'CopyIcons' failed on attempt #15 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.20 second(s)...
50441 WARNING: Execution of 'CopyIcons' failed on attempt #16 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.25 second(s)...
50692 WARNING: Execution of 'CopyIcons' failed on attempt #17 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.33 second(s)...
51026 WARNING: Execution of 'CopyIcons' failed on attempt #18 / 20: PermissionError(13, 'Permission denied'). Retrying in 0.50 second(s)...
51528 WARNING: Execution of 'CopyIcons' failed on attempt #19 / 20: PermissionError(13, 'Permission denied'). Retrying in 1.00 second(s)...
52529 WARNING: Execution of 'CopyIcons' failed on attempt #20 / 20: PermissionError(13, 'Permission denied').
Traceback (most recent call last):
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\api.py", line 1048, in _retry_operation
    return func(*args)
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\utils\win32\icon.py", line 206, in CopyIcons
    srcpath = normalize_icon_type(srcpath, ("exe", "ico"), "ico", config.CONF["workpath"])
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\icon.py", line 65, in normalize_icon_type
    with PILImage.open(icon_path) as im:
         ~~~~~~~~~~~~~^^^^^^^^^^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PIL\Image.py", line 3505, in open
    fp = builtins.open(filename, "rb")
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Dladmin\\Downloads\\.'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Scripts\pyinstaller.exe\__main__.py", line 7, in <module>
    sys.exit(_console_script_run())
             ~~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\__main__.py", line 231, in _console_script_run
    run()
    ~~~^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\__main__.py", line 215, in run
    run_build(pyi_config, spec_file, **vars(args))
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\__main__.py", line 70, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\build_main.py", line 1270, in main
    build(specfile, distpath, workpath, clean_build)
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\build_main.py", line 1208, in build
    exec(code, spec_namespace)
    ~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Dladmin\Downloads\HEIF.spec", line 19, in <module>
    exe = EXE(
        pyz,
    ...<17 lines>...
        icon=['.'],
    )
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\api.py", line 665, in __init__
    self.__postinit__()
    ~~~~~~~~~~~~~~~~~^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\datastruct.py", line 184, in __postinit__
    self.assemble()
    ~~~~~~~~~~~~~^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\api.py", line 778, in assemble
    self._retry_operation(icon.CopyIcons, build_name, self.icon)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Dladmin\AppData\Local\Programs\Python\Python313\Lib\site-packages\PyInstaller\building\api.py", line 1067, in _retry_operation
    raise RuntimeError(f"Execution of {func_name!r} failed - no more attempts left!") from e
RuntimeError: Execution of 'CopyIcons' failed - no more attempts left!

devSteven

HuiG 发表于 2025-8-12 11:22
48962 WARNING: Execution of 'CopyIcons' failed on attempt #1 / 20: PermissionError(13, 'Permission d ...

Permission denied