Extract by Mask not including full extent of the mask

Discussion created by kpzimmer on Oct 8, 2013
Latest reply on Jun 10, 2014 by jmtaysom

I have numerous raster .img files that I'm trying to clip to a feature class containing several irregular shaped polygons. It seems to work correctly for the most part, but it seems pixels around the polygon edges are not always including. It appears there may be a threshold where if >50 % of the pixel isn't covered by the mask it is excluded. However, I would like it so that any pixel intersected by the polygon mask is included.   I have set the cell size and snap to raster environment, but was wondering if there are additional environments I need to set. I have attached a screen shot to show the issue. I have tried both clip and extract by mask and get the same result.

Any advice would be greatly appreciated.

Thanks in advance.