1. A character recognition processing system, comprising: a character recognition confidence evaluating unit that evaluates whether confidence of character recognition of a plurality of areas including a character are low or high; a character area classification unit that classifies a first area evaluated low by the character recognition confidence evaluating unit into a plurality of components; a character separation unit that separates the components classified by the character area classification unit into a character component and non-character components, according to information relating to a second area evaluated high by the character recognition confidence evaluating unit, the non-character components including a marking component and a ground component, the marking component being defined by an area of the plurality of areas having been marked by a highlighting pen; a first character recognition unit that performs character recognition processing for the character component separated by the character separation unit; a background-colored character region locating unit that locates a background-colored character region from an image, the background-colored character region being the areas having been marked by the highlighting pen; a character partition unit that partitions the background-colored character region located by the background-colored character region locating unit into areas including a character; a second character recognition unit that performs character recognition for each of the areas including the character partitioned by the character partition unit; and a character recognition confidence calculating unit that calculates the confidence of the character recognition performed by the second character recognition unit, wherein the second area evaluated high in terms of the character recognition confidence by the character recognition confidence evaluating unit, which is used by the character separation unit, falls within the background-colored character region located by the background-colored character region locating unit, the region including the area of the character components to be separated, and wherein at least one of the above units comprises a hardware module.