1. A component image processing apparatus that partially images a component larger than a field of view of a camera for image processing and measures a position of the component based on the image processing result, the apparatus comprising: imaging range determining means that determines imaging ranges of a plurality of characteristic parts to be imaged obtained by division from a range of the component to be imaged; combined image creating means that combines images of the plurality of characteristic parts obtained by imaging the plurality of characteristic parts with the camera to create a combined image of the characteristic parts of the component; and measuring means that measures a position of the component based on the combined image of the characteristic parts of the component.