An image-processing device comprises an acquisition section that acquires a binary image; a figure part identifying section that identifies a figure part in the binary image; a line segment identifying section that identifies line segments included in the figure part; a specific line segment extracting section that determines whether each line segment has an end portion having a specific shape, and extracts a line segment with an end portion having the specific shape as a specific line segment; and a table region determining section that determines whether the figure part is a table region based on the line segments identified by the line segment identifying section excluding the specific line segment.