# How to automate the image selection process for calibration

**URL:** https://forum.opencv.org/t/how-to-automate-the-image-selection-process-for-calibration/2772
**Category:** Python
**Tags:** calib3d
**Created:** [April 15, 2021, 3:10am UTC](https://forum.opencv.org/t/how-to-automate-the-image-selection-process-for-calibration/2772 "2021-04-15T03:10:19Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![dnp407](https://avatars.discourse-cdn.com/v4/letter/d/85e7bf/32.png) [@dnp407](https://forum.opencv.org/u/dnp407)
#### Post date: [April 15, 2021, 3:10am UTC](https://forum.opencv.org/t/how-to-automate-the-image-selection-process-for-calibration/2772/1 "2021-04-15T03:10:19Z")

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How can I automate the image selection process for calibration?

I have tried re-calibrating with only good images, after performing calibration and removing images with high individual RMS error, but this is way too slow.

Another method is using homography, but for that I need to also perform calibration before filtering and re-calibrating for better results.

Thanks.