Under the image layer. do you see a gray felt material or is it a white vinyl material? If it's gray felt, I would just try a premium felt-backed vinyl adhesive. If it's vinyl peeling away from vinyl, I would use a premium vinyl-backed vinyl adhesive. In either case, I would let the glue dry until tacky before re-installing your image layer. Use the smallest notched trowel you can find; probably a 1/32x 1/32x 1/32. If the image layer peeling off is partially transparent, I would abandon the repair option and stick with Del's advice.