Hello Pix4D Support team,
I’m encountering an issue in Pix4Dmatic where a large number of valid images are being rejected on import with a “Duplicate image” warning, and I’d like help understanding the cause.
What happens:
When adding 2390 RGB images, only 600 are added and 1790 are rejected. The warning reads “Failed to add 1790 image(s) – Duplicate image.” The rejected files follow a regular alternating pattern (e.g. left_00003, left_00005, left_00007, left_00009…), with every other image being dropped.
Camera model detected: Generic ShareUAV_R2000_SVCA01_3.6_3504x4672
Why this is unexpected:
- The same workflow imported correctly before, with both left and right camera images accepted.
- The images are not actual duplicates – they are distinct captures, and the folder does not contain duplicated or backup copies.
- I have also observed this same yellow warning with my drone images, not only this dataset, which suggests it may not be specific to a single project.
What I’ve checked:
- Confirmed the source folder contains no duplicate or repeated files.
- Confirmed I am not re-importing a folder that was already loaded.
- [Optional: add EXIF check result here – e.g. “Consecutive rejected/accepted images share identical GPS coordinates and timestamps” or “EXIF coordinates differ between the images.”]
My environment:
- Pix4Dmatic version: 2.5.2
My questions:
- What exact criteria does Pix4Dmatic use to flag an image as a duplicate (filename, EXIF position/timestamp, pixel content)?
- Is there a way to override or disable duplicate detection so all images are imported?
- Could a recent version update have changed the deduplication behavior?
I can provide sample images, EXIF data, or a screenshot of the warning if helpful. Thank you for your assistance.
