Patent ID: 8605268
Filing Date: 2013-12-10
Classification: G03G

Abstract:
1. A computer-implemented method for determining area coverages of each colorant in a printed image that includes a plurality of colorants including a black colorant, wherein the method is implemented in a computer system comprising one or more processors configured to execute one or more computer program modules, the method comprising: obtaining image data of the printed image using a sensor having a plurality of sensing elements, wherein one of the sensing elements is an infrared sensing element configured to detect infrared reflection, and the others of the sensing elements are each configured to detect a visible color; determining the area coverage of the black colorant using output from the infrared sensing element and from at least one other sensing element; and determining the area coverages of the remaining of the plurality of colorants using output from the sensing elements other than the infrared sensing element, together with the determined area coverage of the black colorant.