# No images associiated with GCPs

**URL:** <https://community.pix4d.com/t/no-images-associiated-with-gcps/2924>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [February 22, 2017, 9:45am UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924 "2017-02-22T09:45:09Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Ben\_Evans](https://avatars.discourse-cdn.com/v4/letter/b/a6a055/32.png) [@Ben\_Evans](https://community.pix4d.com/u/Ben_Evans)\
**Post date:** [February 22, 2017, 9:45am UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924/1 "2017-02-22T09:45:09Z")

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I have imported RTK GCPs into a project then run stage 1 - images have geolocation.

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When I come to try to locate the GCPs in the RayCloud there are no images in which any of the GCPs appear despite most of them overlaying the survey area well. I therefore don’t think it is a coordinate system problem.Anyone have any ideas why there aren’t any images found?

Images are in WGS84, 31N with EGM 96 datum. GCPs are in OSGB/BNG, with elevations already converted from ODN to EGM96.

I looked at this thread, but it wasn’t helpful. I couldn’t fine other threads that were relevant

[https://community.pix4d.com/t/4552-No-image-GCP-marker?input\_string=No%20images](https://community.pix4d.com/t/4552-No-image-GCP-marker?input_string=No%20images)

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**Author:** ![Julie\_Pichon](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/julie_pichon/32/592_2.png) [@Julie\_Pichon](https://community.pix4d.com/u/Julie_Pichon)\
**Post date:** [February 22, 2017, 5:24pm UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924/2 "2017-02-22T17:24:13Z")

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Hi Ben,

We replied in the other thread but please follow up here.

Regards,

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**Author:** ![vikram.potdar](https://avatars.discourse-cdn.com/v4/letter/v/e95f7d/32.png) [@vikram.potdar](https://community.pix4d.com/u/vikram.potdar)\
**Post date:** [November 24, 2020, 6:44am UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924/3 "2020-11-24T06:44:49Z")

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when i click on gcp point image did not show in right window

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**Author:** ![Christina](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/christina/32/303_2.png) [@Christina](https://community.pix4d.com/u/Christina)\
**Post date:** [November 24, 2020, 8:55am UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924/4 "2020-11-24T08:55:42Z")

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this can help:

> [@No image - GCP marker](https://community.pix4d.com/t/no-image-gcp-marker/4552/9):
>
> I had the same problem, I fixed it by using the Basic Editor of the GCP/MTP Manager&nbsp; and marking each GCP on three images, hit Reoptimize, after that they started to show up in the rayCloud and the Automatic Marking option was available, hit it, and more images showed up to be able to&nbsp;be marked&nbsp;with the GCPs, I marked few more, hit Reoptimize, and I confirmed in the raycloud graphic the elevation of the model was fixed with the GCPs. some screenshots below. &nbsp; model relative to GCPs before&nbsp;the …

Feel free to comment on the above-mentioned post so that we have all information about the issue in one place

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**Author:** ![Christina](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/christina/32/303_2.png) [@Christina](https://community.pix4d.com/u/Christina)\
**Post date:** [November 24, 2020, 8:56am UTC](https://community.pix4d.com/t/no-images-associiated-with-gcps/2924/5 "2020-11-24T08:56:13Z")

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Closed on November 24, 2020, 8:56am UTC