What are the requirements on the image containing the MRZ?

[snoopyhunter2]

After managing to install FastMRZ, and checking that the examples are processed correctly, I'm trying out FastMRZ on my own data.
It's an image I took of my own EU id card, with the MRZ clearly readable.
However, FastMRZ is not able to correctly process this image.
fast_mrz.get_mrz gives:
{
"status": "FAILURE",
"message": "Invalid MRZ format"
}
whereas fast_mrz.get_raw_mrz gives only the first line (out of 3).

What is going wrong here? For obvious reasons I cannot share the image I used.

[sivakumar-mahalingam]

Could you please share some details related to image?

• File format of the image
• Its resolution
• Size of the image

[snoopyhunter2]

Thank you for getting back!
The image is in PNG format, 525 × 700 at 72 × 72 resolution, 822 KB.
Do you think this is not a high enough resolution?