IMAGE DECOLORING APPARATUS AND METHOD OF CONTROLLING SECURITY IN IMAGE DECOLORING APPARATUS

摘要

According to an embodiment, an image erasing apparatus includes an accessory information acquiring unit and an execution availability determining unit. The accessory information acquiring unit acquires accessory information related to security of the sheet based on attribute data of a sheet on which an erasable image is formed. The execution availability determining unit each determines execution availability of erase processing for the image on the sheet and execution availability of preservation processing for the image data generated by the readout unit, based on the accessory information.