IMAGE PROCESSOR, METHOD FOR CONTROLLING IMAGE PROCESSOR, AND IMAGE PROCESSING PROGRAM

To precisely measure a measurement target on the basis of images taken by a plurality of imaging units.SOLUTION: An image processor (10) includes: a setting unit (102) for setting a plurality of specification units for each measurement target edge in a reference image taken of a measurement target by a reference imaging unit (110) and calculating the longer direction of the measurement target on the basis of a plurality of specification points; and a selection unit (103) for selecting a reference image used for a measurement on the basis of the angle formed by the longer direction of the measurement target and the baseline direction.SELECTED DRAWING: Figure 1 【課題】複数の撮像部によって撮像された画像に基づき、計測対象を高精度に計測する。【解決手段】画像処理装置（１０）は、基準撮像部（１１０）によって計測対象が撮像された基準画像における計測対象のエッジごとに複数の指定点を設定し、複数の指定点に基づいて、計測対象の長手方向を算出する設定部（１０２）と、計測対象の長手方向と、基線方向とのなす角度に基づいて、計測に使用する参照画像を選択する選択部（１０３）とを備える。【選択図】図１