Save keypoints as image with just keypoints and without original image

[sudarshan-iyengar]

Hi,

I am interested in saving an image of each of my camera poses' keypoints. I am aware that I can use the GUI to see and save the image with its keypoints as in the following image, but the key difference is that I do not want the image there at all, just the keypoints.

Is there a way in which I could get this? An example of the kind of output I am looking for can be found in the image below.

Thank you for your guidance and help in advance!

[jytime]

Hi the best option would be generating such an image by youself. You can get the pixel locations of the keypoints for each frame in images.txt (see https://colmap.github.io/format.html#images-txt). Then it is easy to plot them in an empty image.