An image processing apparatus includes a recording control unit for recording, by a recording head, a recording position adjustment chart including a pattern for adjusting a recording position of the recording head discharging ink and a mark formed in a position different from that of the pattern, a reading unit for reading the recording position adjustment chart as image data, a first detection unit for detecting a position and inclination of the recording position adjustment chart when reading the recording position adjustment chart based on the mark, a second detection unit for detecting the position of the pattern based on the position and the inclination detected by the first detection unit, and a determination unit for determining adjustment values for the recording position adjustment based on the image data of the recording position adjustment chart in which the position of the pattern has been detected by the second detection unit.