PROBLEM TO BE SOLVED: To provide an image processing device that acquires a high-quality bit map image.SOLUTION: An image processing device includes: pixel value acquisition means 121 that acquires pixel values of new pixels obtained by increasing the resolution of a first bit map image using pixel values of plural original pixels around positions where the new pixels are disposed in the first bit map image representative value acquisition means 122 that acquires a representative value of pixel values of plural new pixels disposed in each area in which each original pixel is disposed correction value acquisition means 123 that acquires a correction value using the pixel value of each original pixel and the representative value acquired for the area where each original pixel is disposed and pixel value correction means 124 that uses the correction value to correct the pixel value of each original pixel. The correction processing for correcting the original pixels is repeated once or plural times. A second bit map image composed of plural new pixels having pixel values acquired by the pixel value acquisition means 121 using the pixel values of the plural original pixels corrected by the repeating is acquired.COPYRIGHT: (C)2014,JPO&INPIT【課題】高品質なビットマップ画像を取得する画像処理装置を提供する。【解決手段】第一のビットマップ画像の解像度を増加させて得られる新規画素の画素値を、第一のビットマップ画像の、新規画素が配置される位置の周辺の複数の原画素の画素値を用いて取得する画素値取得手段121と、各原画素が配置されている各領域内に配置される複数の新規画素の画素値の代表値を取得する代表値取得手段122と、各原画素の画素値と、各原画素が配置されている領域について取得した代表値とを用いて補正値を取得する補正値取得手段123と、補正値を用いて原画素の画素値をそれぞれ補正する画素値補正手段124とを備え、上記の原画素を補正する補正処理を一回または2回以上繰り返し、繰り返しにより補正された複数の原画素の画素値を用いて画素値取得手段121が取得した画素値を有する複数の新規画素で構成される第二のビットマップ画像を取得する。【選択図】図1
