Jump to content

Geotiff is not keeping correct georeference after editing


Recommended Posts

Hi,

I opened a geotiff and did a simple erase of an small area and then saved it with a new file name.

I opened the original geotiff in the software "manifold viewer" and checked the position of a feature in the orthophoto.

I opened the modified geotiff in the software "manifold viewer" and checked the position of the same feature in the orthophoto.

When I compared the reported position in "manifold viewer" for the feature in both geotiff it was offset off by 8 meters  in longitude and 6.5 meters in latitude after editing.

 

I did another test where I cropped the picture and saved it.

When I compared the reported position in "manifold viewer" for the feature in both geotiff it was offset off by 152 meters  in longitude and 583 meters in latitude after editing.

 

I have checked this data with GeoVisu also and it shows similar offsets of position.

 

The geotiff is 15182x20186 pixels (300 MPixels), resolution in 10cm/pixel

 

Cheers

Hakan

 

Edited by herkam
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...