I’m trying to make a projection from a few z-stack pictures, and extraction of metadata by a channel category does not work when I try to group the images for the projection. The names are straightforward (eg. “Image_Z001_CH1.tif”), where the Z is a z-stack number and CH is channel number (1-4). I used this expression:
which results correctly in this:
When I go to Groups to categorize by Channel, it only says nan.
When I try the same type of grouping with the Z-stack number instead, it works.
I’m using CP 4.0.7 Here’s the pipeline:
Grouping1.cpproj (836.8 KB)
Here are the pictures:
1_06.zip (4.3 MB)
The goal is to get a projection image for each of the 4 channels from all the pictures uploaded.
Also, in the end, the the output projection images are nowhere to be found. Can I continue my following pipeline dircetly after the projections, or do I have to first save the created pictures and then use them in another pipeline?
Thank you for any help.