Mounting device 11 captures an image of reference mark 25 at a first position at which mounting head 22 is stopped under first imaging conditions, and captures an image of component 60 under second imaging conditions. Then, mounting device 11 moves mounting head 22 and captures an image of reference mark 25 at a second position at which mounting head 22 is stopped under the first imaging conditions, and captures a second image of component 60 under the second imaging conditions. Further, mounting device 11 generates an image of component 60 picked up by mounting head 22 based on the positional relationship of reference mark 25 using the first image and the second image.