Patent ID: 8982436
Filing Date: 2015-03-17
Classification: H04N

Abstract:
1. An image reading apparatus comprising: a transport section configured to transport a document; a reading section configured to read the transported document in a transport reading region; a white reference material arranged at a position to be read by the reading section; a control section configured to control the transport section and the reading section so as to obtain white reference data by making the reading section read the white reference material and to obtain black reference data more frequently than the white reference data; and wherein the control section controls the transport section and the reading section so as to read the document with a plurality of values of resolution including a specific high frequency resolution value, and the control section obtains the white reference data and the black reference data when the resolution value with which the document is read is a low frequency resolution value which is a lower frequency resolution value than the high frequency resolution value, and obtains the black reference data when the resolution value with which the document is read is the high frequency resolution value.