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1. 发明授权

US08014032B2 Electrophotographic image forming apparatus and halftoning correction method thereof 失效
标题翻译：电子照相图像形成装置及其半色调校正方法
公开(公告)号：US08014032B2
公开(公告)日：2011-09-06
申请号：US11685883
申请日：2007-03-14
申请人： Woo-jun Chung , Sang-ho Kim
发明人： Woo-jun Chung , Sang-ho Kim
IPC分类号： H04N1/405
CPC分类号： H04N1/4051 , H04N1/387
摘要： An electrophotographic image forming apparatus and a halftoning correction method thereof are provided. The electrophotographic image forming apparatus according to the example embodiments of the present invention, comprises a storage unit storing a plurality of dot patterns representing print characteristics of a print engine, a data area dividing unit dividing halftoned print data into data areas respectively having the same size as the dot patterns, a pattern extraction unit extracting an appropriate dot pattern with respect to each of the divided data areas by comparing dots in the data areas to the dot patterns, and a pattern converter changing the data area to the extracted dot pattern. Therefore, an optimal halftoned image can be provided.
摘要翻译：提供一种电照相成像设备及其半色调校正方法。根据本发明的示例性实施例的电子照相图像形成装置包括存储单元，其存储表示打印引擎的打印特性的多个点图案，数据区域划分单元将半色调打印数据分割成分别具有相同尺寸的数据区域作为点图案，图案提取单元通过将数据区域中的点与点图案进行比较，并且将数据区域改变为提取的点图案，从而提取相对于每个分割数据区域的适当点图案。因此，可以提供最佳的半色调图像。

2. 发明申请

US20100177365A1 IMAGE FORMING APPARATUS AND IMAGE QUALITY CALIBRATION METHOD THEREOF 有权
标题翻译：图像形成装置及其图像质量校准方法
公开(公告)号：US20100177365A1
公开(公告)日：2010-07-15
申请号：US12686438
申请日：2010-01-13
申请人： Woo-jun Chung , Hyun-soo Oh , Kyeong-man Kim , Min-uk Seo
发明人： Woo-jun Chung , Hyun-soo Oh , Kyeong-man Kim , Min-uk Seo
IPC分类号： H04N1/46
CPC分类号： H04N1/6033
摘要： An image forming apparatus and an image quality calibration method in the image forming apparatus, the image forming apparatus including a printing unit to print a calibration chart in one mode selected from a plurality of resolution modes, a scanning unit to scan the printed calibration chart, and a calibrating unit to calibrate an image using color values of the scanned calibration chart according to the plurality of resolution modes.
摘要翻译：在图像形成装置中的图像形成装置和图像质量校准方法，所述图像形成装置包括：打印单元，用于以从多个分辨率模式中选择的一种模式打印校准图;扫描单元，用于扫描打印的校准图; 以及校准单元，用于根据所述多个分辨率模式使用所扫描的校准图的颜色值来校准图像。

3. 发明申请

US20070024914A1 Screen designing method and screen designing device providing a reduction of moire pattern 审中-公开
标题翻译：屏幕设计方法和屏幕设计装置提供莫尔图案的减少
公开(公告)号：US20070024914A1
公开(公告)日：2007-02-01
申请号：US11488646
申请日：2006-07-19
申请人： Woo-Jun Chung , Choon-Woo Kim , Byong-Min Kang
发明人： Woo-Jun Chung , Choon-Woo Kim , Byong-Min Kang
IPC分类号： H04N1/409
CPC分类号： H04N1/4055
摘要： A screen designing method and a screen designing device for reducing a moire pattern are provided. In the screen designing method, screen parameters corresponding to a preset screen frequency, a preset screen angle, and a preset resolution are detected first. Then, the coordinates of dot centers being the centers of cluster dots each with a plurality of microdots are detected. Next, a dot center order indicating a sequence in which the dot centers are turned on is determined. Thereafter, a microdot order indicating a sequence in which the microdots are turned on is determined using an evaluation function that quantitates the perception of a moiré pattern by a human's vision. Accordingly, the microdot order is determined using the evaluation function based on the visual characteristics of a human, thereby preventing patterns that degrade the quality of image formation and a moiré pattern from being generated.
摘要翻译：提供了一种用于减少莫尔图案的屏幕设计方法和屏幕设计装置。在屏幕设计方法中，首先检测对应于预设屏幕频率，预设屏幕角度和预设分辨率的屏幕参数。然后，检测作为具有多个微点的簇点的中心的点中心坐标。接下来，确定指示点中心打开的顺序的点中心顺序。此后，使用评价功能确定表示微点开启的序列的微点次序，该评价函数通过人的视觉量化莫尔图案的感知。因此，使用基于人的视觉特性的评价函数来确定微点次序，从而防止降低图像形成质量和产生莫尔图案的图案。

4. 发明授权

US09001380B2 Print controlling terminal and method for compensating colors 有权
标题翻译：打印控制终端和补偿颜色的方法
公开(公告)号：US09001380B2
公开(公告)日：2015-04-07
申请号：US12929462
申请日：2011-01-26
申请人： Hyun-soo Oh , Kyeong-man Kim , Woo-jun Chung
发明人： Hyun-soo Oh , Kyeong-man Kim , Woo-jun Chung
IPC分类号： G06F15/00 , G03F3/10 , H04N1/60
CPC分类号： H04N1/6058
摘要： A present color compensating method includes receiving selection of an input ICC profile and an output ICC profile, receiving selection of a plurality of color rendering intents to be applied to an ICC profile, generating a color conversion table using the selected input ICC profile, the selected output profile, and the selected plurality of color rendering intents, and generating print data using the generated color conversion table.
摘要翻译：本发明的颜色补偿方法包括接收输入ICC简档和输出ICC简档的选择，接收对应用于ICC简档的多个显色意图的选择，使用所选择的输入ICC简档生成颜色转换表，所选择的输出配置文件和所选择的多个显色意图，以及使用生成的颜色转换表生成打印数据。

5. 发明申请

US20080117465A1 IMAGE PROCESSING USING HYBRID LOOKUP TABLE 失效
标题翻译：使用混合查找表的图像处理
公开(公告)号：US20080117465A1
公开(公告)日：2008-05-22
申请号：US11782091
申请日：2007-07-24
申请人： Woo-jun Chung , Sang-youn Shin , Choon-woo Kim , Byong-tae Ryu , Jong-ok Lee
发明人： Woo-jun Chung , Sang-youn Shin , Choon-woo Kim , Byong-tae Ryu , Jong-ok Lee
IPC分类号： H04N1/405
CPC分类号： H04N1/40075 , H04N1/40068
摘要： An image processing method and an image processing apparatus converts a binary image into a grayscale image by increasing the size and information quantity of the binary image. The image processing method includes generating a plurality of lookup tables having multiple gray level values assigned to a predetermined pattern of the binary image such that the gray level is retrieved from the plurality of lookup tables depending on the context of the block being processed. The binary image may be converted into the grayscale image by applying the gray value of one of the plurality of lookup tables that corresponds to the context, such as the frequency components of the binary image. With this configuration, since the size and information quantity of an image can be reduced for transmission, it is possible to prevent deterioration of image quality when the image is restored, while also printing at a higher speed.
摘要翻译：图像处理方法和图像处理装置通过增加二值图像的大小和信息量将二进制图像转换成灰度图像。图像处理方法包括生成具有分配给二进制图像的预定图案的多个灰度值的多个查找表，使得根据正被处理的块的上下文从多个查找表中检索灰度级。可以通过应用与上下文相对应的多个查找表中的一个的灰度值，例如二进制图像的频率分量，将二进制图像转换成灰度图像。利用这种配置，由于可以减小图像的尺寸和信息量以进行传输，所以可以防止当图像恢复时图像质量的劣化，同时也以更高的速度进行打印。

6. 发明授权

US08199363B2 Image processing using hybrid lookup table 失效
标题翻译：使用混合查找表的图像处理
公开(公告)号：US08199363B2
公开(公告)日：2012-06-12
申请号：US11782091
申请日：2007-07-24
申请人： Woo-jun Chung , Sang-youn Shin , Choon-woo Kim , Byong-tae Ryu , Jong-ok Lee
发明人： Woo-jun Chung , Sang-youn Shin , Choon-woo Kim , Byong-tae Ryu , Jong-ok Lee
IPC分类号： G06K15/00 , G06K9/36 , H04N1/40
CPC分类号： H04N1/40075 , H04N1/40068
摘要： An image processing method and an image processing apparatus converts a binary image into a grayscale image by increasing the size and information quantity of the binary image. The image processing method includes generating a plurality of lookup tables having multiple gray level values assigned to a predetermined pattern of the binary image such that the gray level is retrieved from the plurality of lookup tables depending on the context of the block being processed. The binary image may be converted into the grayscale image by applying the gray value of one of the plurality of lookup tables that corresponds to the context, such as the frequency components of the binary image. With this configuration, since the size and information quantity of an image can be reduced for transmission, it is possible to prevent deterioration of image quality when the image is restored, while also printing at a higher speed.
摘要翻译：图像处理方法和图像处理装置通过增加二值图像的大小和信息量将二进制图像转换成灰度图像。图像处理方法包括生成具有分配给二进制图像的预定图案的多个灰度值的多个查找表，使得根据正被处理的块的上下文从多个查找表中检索灰度级。可以通过应用与上下文相对应的多个查找表中的一个的灰度值，例如二进制图像的频率分量，将二进制图像转换成灰度图像。利用这种配置，由于可以减小图像的尺寸和信息量以进行传输，所以可以防止当图像恢复时图像质量的劣化，同时也以更高的速度进行打印。

7. 发明申请

US20120140253A1 IMAGE FORMING APPARATUS TO SET OPTIMAL PRINT OPTIONS FOR TEST PRINTS OF PRIMITIVE IMAGES AND METHOD THEREOF 审中-公开
标题翻译：图像形成装置，为初步图像的测试打印设置最佳打印选项及其方法
公开(公告)号：US20120140253A1
公开(公告)日：2012-06-07
申请号：US13307354
申请日：2011-11-30
申请人： Woo-jun CHUNG , Sung-hyun Lim
发明人： Woo-jun CHUNG , Sung-hyun Lim
IPC分类号： H04N1/60
CPC分类号： B41J29/393
摘要： An image forming apparatus and a method of forming an image in an image forming apparatus are proceed. The image forming apparatus, comprising: an image data processing part to create a plurality of test images using a primitive image, an image print part to print the created plurality of test images, an input part to receive a selection of one of the plurality of printed test images, and a control part to set the print options set of the selected test image as print options of the primitive image.
摘要翻译：进行图像形成装置和在图像形成装置中形成图像的方法。该图像形成装置包括：图像数据处理部分，用于使用原始图像创建多个测试图像;图像打印部分，用于打印所创建的多个测试图像;输入部分，用于接收多个测试图像中的一个的选择; 打印测试图像和控制部分，以将所选测试图像的打印选项集设置为原始图像的打印选项。

8. 发明申请

US20110299100A1 PRINT CONTROLLING TERMINAL AND COLOR CORRECTION METHOD 有权
标题翻译：打印控制终端和颜色校正方法
公开(公告)号：US20110299100A1
公开(公告)日：2011-12-08
申请号：US12953878
申请日：2010-11-24
申请人： Woo-jun CHUNG , Kyeong-man Kim , Min-ki Cho , Hyun-soo Oh , Heui-keun Cho , Yeong-ho Ha , In-su Jang
发明人： Woo-jun CHUNG , Kyeong-man Kim , Min-ki Cho , Hyun-soo Oh , Heui-keun Cho , Yeong-ho Ha , In-su Jang
IPC分类号： H04N1/60 , G06K15/02
CPC分类号： H04N1/6055
摘要： A color correction method includes displaying an expected print image of a test image of the image forming apparatus on a monitor, outputting the test image to the image forming apparatus, performing color matching between the output test image and an expected print image on the monitor, changing an ICC profile of the monitor according to the performed color matching, and generating a print data using the changed ICC profile. Also a print controlling terminal which performs the color correction method.
摘要翻译：颜色校正方法包括在监视器上显示图像形成装置的测试图像的预期打印图像，将测试图像输出到图像形成装置，在监视器上执行输出测试图像和预期打印图像之间的颜色匹配，根据执行的颜色匹配改变监视器的ICC配置文件，并使用改变的ICC配置文件生成打印数据。也是执行颜色校正方法的打印控制终端。

9. 发明申请

US20080055650A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND HALFTONING CORRECTION METHOD THEREOF 失效
标题翻译：电子图像形成装置及其修正方法
公开(公告)号：US20080055650A1
公开(公告)日：2008-03-06
申请号：US11685883
申请日：2007-03-14
申请人： Woo-jun CHUNG , Sang-ho Kim
发明人： Woo-jun CHUNG , Sang-ho Kim
IPC分类号： G06K15/00
CPC分类号： H04N1/4051 , H04N1/387
摘要： An electrophotographic image forming apparatus and a halftoning correction method thereof are provided. The electrophotographic image forming apparatus according to the example embodiments of the present invention, comprises a storage unit storing a plurality of dot patterns representing print characteristics of a print engine, a data area dividing unit dividing halftoned print data into data areas respectively having the same size as the dot patterns, a pattern extraction unit extracting an appropriate dot pattern with respect to each of the divided data areas by comparing dots in the data areas to the dot patterns, and a pattern converter changing the data area to the extracted dot pattern. Therefore, an optimal halftoned image can be provided.
摘要翻译：提供一种电照相成像设备及其半色调校正方法。根据本发明的示例性实施例的电子照相图像形成装置包括存储单元，其存储表示打印引擎的打印特性的多个点图案，数据区域划分单元将半色调打印数据分割成分别具有相同尺寸的数据区域作为点图案，图案提取单元通过将数据区域中的点与点图案进行比较，并且将数据区域改变为提取的点图案，从而提取相对于每个分割数据区域的适当点图案。因此，可以提供最佳的半色调图像。

10. 发明申请

US20060126121A1 System and method for forming image 审中-公开
标题翻译：用于形成图像的系统和方法
公开(公告)号：US20060126121A1
公开(公告)日：2006-06-15
申请号：US11252613
申请日：2005-10-19
申请人： Woo-Jun Chung
发明人： Woo-Jun Chung
IPC分类号： H04N1/405
CPC分类号： H04N1/4092 , H04N1/405 , H04N1/41
摘要： A system and a method for forming an image are provided. The method includes the steps of dividing an input image into sub cells including a predetermined number of pixels, calculating gray level values of the sub cells, calculating direction information values of the sub cells;, selecting halftone patterns corresponding to the gray level values and the direction information values from a stored lookup table, and applying the halftone patterns to positions of the sub cells so as to generate and output a binary image for the input image.
摘要翻译：提供了一种用于形成图像的系统和方法。该方法包括以下步骤：将输入图像划分成包括预定数量的像素的子单元，计算子单元的灰度值，计算子单元的方向信息值;选择与灰度值对应的半色调图案，以及来自存储的查找表的方向信息值，以及将半色调图案应用于子单元的位置，以便生成并输出用于输入图像的二进制图像。

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