Photographing apparatus and authentication apparatus

An authentication apparatus, comprising:

• a processor, the processor is configured to:
• irradiate a living body with beams of light having a plurality of wavelengths different from one another, wherein the living body comprises a plurality of fingers;
• photograph the irradiated living body to generate image data of the living body;
• generate, based on the image data, a plurality of pieces of wavelength separation image data, by separation into the plurality of wavelengths;
• control, based on the image data and on the plurality of pieces of wavelength separation image data, irradiation light amounts of the beams of light having the plurality of wavelengths;
• extract a plurality of pieces of living body feature data by extracting living body feature data from each of the plurality of pieces of wavelength separation image data;
• and
• match each of the plurality of pieces of living body feature data against living body feature data registered in advance,
• wherein the processor is configured to control the irradiation light amounts of the beams of light having the plurality of wavelengths, based on regions of some of the plurality of fingers that are included in the image data about the plurality of fingers and the plurality of pieces of wavelength separation image data.