Digitized image data are input into a processor where a detection component identifies the areas of particular interest in the image and, by segmentation, separates those objects from the background. An elastomeric film can be mounted on the circumferential perimeter portion of the tubular housing across the open face of the tubular housing. The solid polymer electrolyte membrane according to an embodiment of the present invention is for use in a fuel cell, and comprises the base film having an electricity-generating region and a non-electricity-generating region, and the moisture-proof layer disposed on at least a part of the non-electricity-generating region.