Layers to measure growth

Hello, is there any option in the program to use layers similar to photoshop or an easy way to overlap images correcting the angles and position to make them fit perfectly and make a stack? Because i need to measure changes in the length of plants where there is no easy distinguishable limit between root and shoot (because of the quality of the image) so I need to fix a point (where the shoot starts) that is constant between images taken at different times.
Thanks a lot.

Hi @Ezequiel,

you can import a series of images using the File > Import > Image sequence menu. Afterwards, the StackReg plugin may help you.
http://bigwww.epfl.ch/thevenaz/stackreg/

Give it a try and let us know, if it works :slight_smile:

If not, it would be nice if you could post some images here so that we can think of another solution.

Best,
Robert

Thank you very much.
I think it will work. I´ll try it and let you know.
Ezequiel