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    • 85. 发明专利
    • Image processor, image processing method, computer program and storage medium
    • 图像处理器,图像处理方法,计算机程序和存储介质
    • JP2008271046A
    • 2008-11-06
    • JP2007109694
    • 2007-04-18
    • Canon Incキヤノン株式会社
    • TAMURA HIROKAZU
    • H04N1/409G06T1/00G06T5/20H04N1/46H04N1/60
    • H04N1/4092H04N1/40068H04N1/58
    • PROBLEM TO BE SOLVED: To provide an image processor for reproducing the edge part of a high resolution raster image with high resolution and suppressing image quality degradation such as jaggies or the like while suppressing a processing cost, and to provide an image processing method, a computer program and a storage medium. SOLUTION: An image processing part 102 divides raster image data into blocks of M×N pixels (M and N are an integer of ≥1 and at least one of M and N is an integer of ≥2) (S401). Then, the image processing part 102 performs color rounding processing in the block (S402) and counts the number of colors in the block (S403). Then, when 2 colors exist in the block, the image processing part 102 acquires shape information relating to the arrangement of the two colors (S408). Then, the image processing part 102 stores the shape information, color information for a first color and color information for a second color in a storage part 103. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于以高分辨率再现高分辨率光栅图像的边缘部分并且抑制诸如锯齿等的图像质量劣化同时抑制处理成本的图像处理器,并且提供图像处理 方法,计算机程序和存储介质。 解决方案:图像处理部分102将光栅图像数据划分成M×N个像素的块(M和N是≥1的整数,并且M和N中的至少一个是≥2的整数)(S401)。 然后,图像处理部102在块中进行颜色舍入处理(S402),并对块中的颜色数进行计数(S403)。 然后,当块中存在2种颜色时,图像处理部102获取与两种颜色的配置有关的形状信息(S408)。 然后,图像处理部分102在存储部分103中存储形状信息,第一颜色的颜色信息和第二颜色的颜色信息。版权所有(C)2009,JPO&INPIT
    • 86. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2008233865A
    • 2008-10-02
    • JP2007327408
    • 2007-12-19
    • Canon Incキヤノン株式会社
    • YAMAMOTO RYUJI
    • G03G15/04B41J2/44B41J2/45B41J2/455G03G15/00G03G15/043G03G21/00G03G21/14H04N1/036H04N1/113
    • G03G15/326B41J2/45G03G15/04045G03G15/04081H04N1/27H04N1/29H04N1/4092
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus to reduce edge effect and void for both non-magnetic and magnetic developing devices. SOLUTION: The image forming apparatus is provided with a photoreceptor drum 303, a charging apparatus 201 charging the photoreceptor drum and a developing apparatus 202 developing a toner image by supplying toner to an electrostatic latent image in a developing region. In addition, the image forming apparatus is provided with a laser unit 306 and an LED array unit 309 installed in a travelling direction of the photoreceptor 303 behind the laser unit 306 and inside the photoreceptor drum 303 so as to be exposed in the developing region. A control part 290 is provided to control the laser unit 306 and the LED array unit 309 so that the LED array unit 309 can expose the same region of the photoreceptor drum 303 which is exposed by the laser unit 306. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种图像形成装置,以减少非磁性和磁性显影装置的边缘效应和空隙。 解决方案:图像形成装置设置有感光鼓303,对感光鼓充电的充电装置201和通过向显影区域中的静电潜像供应调色剂来显影调色剂图像的显影装置202。 此外,图像形成装置设置有激光单元306和LED阵列单元309,其安装在激光单元306后面的感光体303的行进方向和感光鼓303内部,以便暴露在显影区域中。 提供控制部分290以控制激光单元306和LED阵列单元309,使得LED阵列单元309可以暴露由激光单元306暴露的感光鼓303的相同区域。(COPYRIGHT:( C)2009,JPO&INPIT