The image processing apparatus (1) of the present invention includes a hue acquisition unit (12) and a brightness acquisition unit (13) that respectively acquire hue information and brightness information of each pixel from a color original image, and a plurality of hue ranges. A color component selection unit (14) that selects a color component associated with a hue range to which the hue information of each pixel belongs as a conversion destination color component of the pixel, and a color component selection unit (14) among the color components of each pixel And a color conversion image generation unit (15) that generates a color conversion image in which gradation values based on the lightness information acquired by the lightness acquisition unit (13) are added to the conversion destination color component selected by (1).本発明の画像処理装置(1)は、カラーの原画像から各画素の色相情報および明度情報をそれぞれ取得する色相取得部(12)および明度取得部(13)と、複数の色相範囲のうち、各画素の色相情報が属する色相範囲と対応付けられた色成分を当該画素の変換先色成分として選択する色成分選択部(14)と、各画素の色成分のうち色成分選択部(14)によって選択された変換先色成分に明度取得部(13)によって取得された明度情報に基づく階調値を付与した色変換画像を生成する色変換画像生成部(15)とを備える。