1. A fluorescence endoscope apparatus comprising: a light source configured to radiate excitation light and reference light onto an examination target; a fluorescence-capturing sensor configured to acquire fluorescence image information by capturing fluorescence generated by the examination target due to irradiation with the excitation light from the light source; a white-light capturing sensor configured to acquire white light information by capturing return light that returns from the examination target due to irradiation with the reference light from the light source; and a processor comprising hardware, wherein the processor is configured to: generate a fluorescence image based on the fluorescence image information; generate a reference image based on the white light information; generate a division image by dividing the fluorescence image by the reference image; and generate a corrected image by multiplying the division image by the fluorescence image.