fitz.Pixmap(None, pix) Unrecognised args for constructing Pixmap

[luhuaei]

Description of the bug

    pixalpha = fitz.Pixmap(None, pixmap)
               ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/fitz/__init__.py", line 9723, in __init__
    raise Exception( text)
Exception: Unrecognised args for constructing Pixmap:
    <class 'NoneType'>: None
    <class 'fitz.Pixmap'>: Pixmap(DeviceRGB, (0, 0, 1920, 2485), 1)

How to reproduce the bug

read the document

>>> import fitz
>>> pix = fitz.Pixmap("screenshot.png")
>>> pix
Pixmap(DeviceRGB, (0, 0, 3840, 2400), 1)
>>> alpha = fitz.Pixmap(None, pix)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.11/site-packages/fitz/__init__.py", line 9723, in __init__
    raise Exception( text)
Exception: Unrecognised args for constructing Pixmap:
    <class 'NoneType'>: None
    <class 'fitz.Pixmap'>: Pixmap(DeviceRGB, (0, 0, 3840, 2400), 1)

>>> fitz.version 
('1.23.22', '1.23.10', '20240212000001')
>>> 

PyMuPDF version

1.23.22

Operating system

Linux

Python version

3.11

[julian-smith-artifex-com]

Thanks for reporting this. I have a fix in my tree, so hopefully it'll be in the next release in a few days time.

[julian-smith-artifex-com]

Fixed in 1.23.23.

[luhuaei]

Thanks!

[jack-gits]

when I extract the images from PDF, it still raise errors as following.

`doc = fitz.open(file)
docs=[]
b_unit = tqdm.tqdm(total=doc.page_count, desc="PDFOCRReader context page index: 0")
for i, page in enumerate(doc):

        # 更新描述
        b_unit.set_description("PDFOCRReader context page index: {}".format(i))
        # 立即显示进度条更新结果
        b_unit.refresh()
        # TODO: 依据文本与图片顺序调整处理方式
        text = page.get_text("")
        resp = text + "\n"

        img_list = page.get_images()
        for img in img_list:
            try:
                pix = fitz.Pixmap(doc, img[0])
                
            except Exception as e:

                # otherwise, just skip the file and report the error
                print(
                    f"Failed to load file {file} with error: {e}. Skipping...",
                    flush=True,
                )`