Can't get the color psd-layers with scripts and the method sampleimage(). Maybe there are other ways to do it?

Apsd with layermasks, there are nocolorproperties, butthe layer itselfhas a color.How to get the valueof this color? I have tried theapp.project.laeyer(n).sampleImage([i,j],[a,b],false,0);Butwhen you run the scriptthis commandis undefined .Please help!

Program versioncc 2014, OS- Windows 7