Image forming apparatus and non-transitory computer-readable storage medium suitable for extracting areas in images specified by handwritten marker by line marker such as highlighter pen or the like, and electronic marker by digital pen

摘要

Provided is an image forming apparatus that extracts an area indicated by a marker. A scanner unit reads a first document having an area indicated by a handwritten marker. A panel unit displays first image data of the first document read by the scanner unit or second image data of the second document stored in a storage device. An electronic marker input unit indicates an area by an electronic marker with respect to the second image data. An area extracting unit, based on a hue difference, which is a difference between a color of the first document read by the scanner unit and a color of the handwritten marker, corrects a hue difference, which is a difference between a color of the second document and a color of the electronic marker, and extracts an area indicated by the handwritten marker or an area by the electronic marker.