Patent ID: 7840223
Filing Date: 2010-11-23
Classification: G06T,G09G,H04M,H04N

Abstract:
1. An image conversion device for obtaining, based on an original image composed of a plurality of pixels, a target image composed of a same number of pixels as that of the original image and is represented by pseudo gradation, where for colors assigned to the pixels in the target image, each of n kinds of color components is represented with 2 the image conversion device comprising: a quantization unit operable to quantize each of the color components for the original image into 2 a color determination unit operable, for each of the pixels on a basis of a correspondence of the pixels in the original image to the pixels in the target image, to divide by two each of a quantized value resulting from the quantization and the quantized value plus one, in accordance with a position of each of the pixels, so as to obtain each quotient, and to set the quotient for each of the color components for the pixels in the target image.