Patent ID: 8059919
Filing Date: 2011-11-15
Classification: G06T,H04N

Abstract:
1. A non-transitory computer-readable medium including computer-executable instructions that, when executed by a computer, cause the computer to perform: periodically executing an averaging processing of applying an averaging pattern to a processing target image and replacing each pixel value in a pixel group corresponding to the averaging pattern with an average value of the pixel values; performing a resolution converting processing to the processing target image, the resolution converting processing converting a resolution R performing a screen processing to a processed image which has been processed by the averaging processing, the screen processing applying a screen pattern to the processed image at the same or almost the same period as that of the averaging processing; controlling the averaging processing unit, the resolution converting unit and the screen processing unit such that the averaging processing, the resolution converting processing and the screen processing are performed in this order to the processing target image; obtaining an integer value Z of a solution of dividing the processing period of the screen processing by a magnification R (R=R setting a combination of the integer values Z and Z+1 or a combination of the integer values Z and Z−1 as the processing period of the averaging processing; and making the processing periods of the averaging processing and the screen processing for R periods accord with each other by switching the processing periods Z and Z+1 or by switching the processing periods Z and Z−1.