Patent ID: 9653010
Date: 2017-05-16
CPC Classifications: G09G

Claim:
1. An image processing apparatus that causes a projection unit to project an image and determines luminance correction values with respect to an overlap region and a non-overlap region of a plurality of images constituting a multi-screen display, the apparatus comprising: at least one processor; and a memory storing a program to be executed by the at least one processor, wherein the at least one processor executes the program to perform the functions of: designating a position related to a boundary between the overlap region, where a projection region of the projection unit and a projection region of other projection unit is overlapped, and the non-overlap region, which is within the projection region of the projection unit and is not overlapped with the projection region of the other projection region; dividing the overlap region and non-overlap region of the images into a grid with set units of processing, wherein the set units of processing are made smaller in a region nearest to the boundary between the overlap region and the non-overlap region; determining luminance correction values for a luminance correction region, which is a region larger than the non-overlap region within the projection region of the projection unit and which overlaps the boundary between the overlap region and the non-overlap region, so that luminance values in the luminance correction region increase, wherein a luminance correction value is determined for each unit of processing; and increasing luminance of an image signal corresponding to the luminance correction region according to the determined luminance correction values.