Information processing apparatus and information processing method

Methods and apparatuses for detecting a plurality of pixels of interest within an image and identifying luminance values corresponding to a predetermined object. The apparatus for detecting includes a memory configured to store first and second images captured using light of first and second wavelengths, respectively. The apparatus for detecting further includes at least one processor configured to detect a plurality of pixels of interest within the first captured image based on luminance values of the stored first and second captured images. The apparatus for identifying includes a memory configured to store a processed image, and at least one processor configured to determine frequencies of luminance values of the plurality of pixels of interest in the processed image and to determine a range of luminance values corresponding to a predetermined object within the processed image based on the determined frequencies of the luminance values.