Error when no spots detected

[krokicki]

Bug report

Description of the problem

When no spots are detected, Takashi says that the pipeline throws an error. He had to create empty result files to handle this special case:
»»»»»»»»echo "0.0,0.0,0.0,0.0" > $newfile
»»»»»»»»echo "x,y,z,t,c,intensity" > $newfile_rs
»»»»»»»»echo "0.0,0.0,0.0,1,1,0.0" >> $newfile_rs

Log file(s)

I don't have the log, but we should be able to reproduce this easily by feeding it an empty image.