Patent ID: 9041977
Filing Date: 2015-05-26
Classification: G06K,H04N

Abstract:
1. An image processing apparatus comprising: a ground color detecting unit that detects ground color information indicating a ground color from input first image data; a storage control unit that causes a storage unit to store a history of the ground color information detected by the ground color detecting unit; a setting unit that sets a first threshold value that is a reference of the ground color on the basis of a representative value of first ground color information indicating a first ground color included in the history stored in the storage unit; and a ground color removing unit that performs a ground color removal process for input second image data on the basis of the first threshold value set by the setting unit; wherein the storage unit includes a first storage unit that stores the first ground color information among the ground color information detected by the ground color detecting unit, and a second storage unit that stores second ground color information indicating a second ground color different from the first ground color, and wherein the setting unit sets the first threshold value on the basis of the representative value of the first ground color information stored in the first storage unit, the image processing apparatus further comprising: an updating unit that updates, when a detection frequency of the second ground color information reaches a second threshold value in the history, the first ground color information stored in the first storage unit by storing the second ground color information instead of the first ground color information in the first storage unit.