A more IM compliant energetics train for a grenade fuze or a detonator includes an explosive charge containing PBXN-5 and a first charge containing PBX-9407 disposed adjacent to the PBXN-5 explosive charge. Accordingly, because image data of components representing the transparency of the image is not encoded in the encoded image file, the image shape can be recognized. A first monitoring unit and a second monitoring unit measure the same cell, e.