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1. 发明授权

US08233713B2 Image processing method and image processing apparatus 失效
标题翻译：图像处理方法和图像处理装置
公开(公告)号：US08233713B2
公开(公告)日：2012-07-31
申请号：US12687128
申请日：2010-01-14
申请人： Hui-Jan Chien , Tsai-Hsing Chen , Li-Kai Cho , Chiung-Sheng Wang , Sung-Hui Lin
发明人： Hui-Jan Chien , Tsai-Hsing Chen , Li-Kai Cho , Chiung-Sheng Wang , Sung-Hui Lin
IPC分类号： G06K9/40 , G06K9/34 , G06K9/00
CPC分类号： G06K9/00456
摘要： An image processing method, for receiving an input image and separating pixels having text characteristics and pixels having figure characteristics, includes: applying a first filtering processing for the input image to derive a first image processing result; applying a second filtering processing for the first image processing result to derive a second image processing result, wherein a distribution of filtering parameters of the first filtering processing is different from a distribution of filtering parameters of the second filtering processing; deriving a set of first reference values according to the first image processing result and the second image processing result; and determining whether each pixel within the input image is a text pixel or a figure pixel according to at least the set of the first reference values and a predetermined threshold.
摘要翻译：一种用于接收输入图像并分离具有文字特征的像素和具有图形特征的像素的图像处理方法，包括：对输入图像应用第一滤波处理以导出第一图像处理结果; 对所述第一图像处理结果应用第二滤波处理以导出第二图像处理结果，其中所述第一滤波处理的滤波参数的分布与所述第二滤波处理的滤波参数的分布不同; 根据第一图像处理结果和第二图像处理结果导出一组第一参考值; 以及根据至少所述第一参考值的集合和预定阈值来确定所述输入图像内的每个像素是文本像素还是图形像素。

2. 发明申请

US20110116141A1 IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS 失效
标题翻译：图像处理方法和图像处理装置
公开(公告)号：US20110116141A1
公开(公告)日：2011-05-19
申请号：US12687128
申请日：2010-01-14
申请人： Hui-Jan Chien , Tsai-Hsing Chen , Li-Kai Cho , Chiung-Sheng Wang , Sung-Hui Lin
发明人： Hui-Jan Chien , Tsai-Hsing Chen , Li-Kai Cho , Chiung-Sheng Wang , Sung-Hui Lin
IPC分类号： G06K9/40 , G06K9/34 , H04N1/40
CPC分类号： G06K9/00456
摘要： An image processing method, for receiving an input image and separating pixels having text characteristics and pixels having figure characteristics, includes: applying a first filtering processing for the input image to derive a first image processing result; applying a second filtering processing for the first image processing result to derive a second image processing result, wherein a distribution of filtering parameters of the first filtering processing is different from a distribution of filtering parameters of the second filtering processing; deriving a set of first reference values according to the first image processing result and the second image processing result; and determining whether each pixel within the input image is a text pixel or a figure pixel according to at least the set of the first reference values and a predetermined threshold.
摘要翻译：一种用于接收输入图像并分离具有文字特征的像素和具有图形特征的像素的图像处理方法，包括：对输入图像应用第一滤波处理以导出第一图像处理结果; 对所述第一图像处理结果应用第二滤波处理以导出第二图像处理结果，其中所述第一滤波处理的滤波参数的分布与所述第二滤波处理的滤波参数的分布不同; 根据第一图像处理结果和第二图像处理结果导出一组第一参考值; 以及根据至少所述第一参考值的集合和预定阈值来确定所述输入图像内的每个像素是文本像素还是图形像素。

3. 发明授权

US08111926B2 Image processing method for deriving text characteristic image from input image and related apparatus 失效
标题翻译：用于从输入图像和相关装置导出文本特征图像的图像处理方法
公开(公告)号：US08111926B2
公开(公告)日：2012-02-07
申请号：US12573889
申请日：2009-10-06
申请人： Wu-Jie Liao , Ting-Yuan Cheng , Pai-Yu Tien , Hui-Jan Chien , Tsai-Hsing Chen
发明人： Wu-Jie Liao , Ting-Yuan Cheng , Pai-Yu Tien , Hui-Jan Chien , Tsai-Hsing Chen
IPC分类号： G06K9/48 , G06K9/34 , H04N1/40
CPC分类号： G06K9/4604 , G06K9/4652 , G06K2209/01
摘要： An image processing method for deriving text characteristic images from an input image includes: performing a plurality of edge detecting processes upon the input image to generate a plurality of edge images, respectively, and deriving a first text characteristic image according to the edge images. The image detecting processes include: performing a first edge detecting process upon the input image to derive a first edge image according to a first upper threshold and a first lower threshold, and performing a second edge detecting process upon the input image to derive a second edge image according to a second upper threshold and a second lower threshold.
摘要翻译：用于从输入图像导出文本特征图像的图像处理方法包括：对输入图像执行多个边缘检测处理，分别生成多个边缘图像，并根据边缘图像导出第一文本特征图像。图像检测处理包括：对输入图像执行第一边缘检测处理以根据第一上阈值和第一下阈值导出第一边缘图像，并且对输入图像执行第二边缘检测处理以导出第二边缘图像根据第二上阈值和第二下阈值。

4. 发明申请

US20110033109A1 IMAGE PROCESSING METHOD FOR DERIVING TEXT CHARACTERISTIC IMAGE FROM INPUT IMAGE AND RELATED APPARATUS 失效
标题翻译：用于从输入图像和相关装置传送文本特征图像的图像处理方法
公开(公告)号：US20110033109A1
公开(公告)日：2011-02-10
申请号：US12573889
申请日：2009-10-06
申请人： Wu-Jie Liao , Ting-Yuan Cheng , Pai-Yu Tien , Hui-Jan Chien , Tsai-Hsing Chen
发明人： Wu-Jie Liao , Ting-Yuan Cheng , Pai-Yu Tien , Hui-Jan Chien , Tsai-Hsing Chen
IPC分类号： G06K9/48 , G06K9/00
CPC分类号： G06K9/4604 , G06K9/4652 , G06K2209/01
摘要： An image processing method for deriving text characteristic images from an input image includes: performing a plurality of edge detecting processes upon the input image to generate a plurality of edge images, respectively, and deriving a first text characteristic image according to the edge images. The image detecting processes include: performing a first edge detecting process upon the input image to derive a first edge image according to a first upper threshold and a first lower threshold, and performing a second edge detecting process upon the input image to derive a second edge image according to a second upper threshold and a second lower threshold.
摘要翻译：用于从输入图像导出文本特征图像的图像处理方法包括：对输入图像执行多个边缘检测处理，分别生成多个边缘图像，并根据边缘图像导出第一文本特征图像。图像检测处理包括：对输入图像执行第一边缘检测处理以根据第一上阈值和第一下阈值导出第一边缘图像，并且对输入图像执行第二边缘检测处理以导出第二边缘图像根据第二上阈值和第二下阈值。

5. 发明申请

US20070182972A1 Image processing system for printers and method of the same 审中-公开
标题翻译：用于打印机的图像处理系统及其方法
公开(公告)号：US20070182972A1
公开(公告)日：2007-08-09
申请号：US11346282
申请日：2006-02-03
申请人： Guo-Tai Chen , Hui-Jan Chien
发明人： Guo-Tai Chen , Hui-Jan Chien
IPC分类号： G06K15/02
CPC分类号： G06K15/02
摘要： The present invention relates to a set of image processing method and systems to be used in printers with asymmetrical-resolution printing mode. The asymmetrical-resolution is defined as having an aspect ratio of n=X:Y. The system first picks up a symmetrical-resolution halftone table and then, by making use of an algorithm such as an interpolation such as a B-spline method, expand the symmetrical-resolution halftone table by n times along the width direction to obtain an asymmetrical-resolution halftone table, in accordance with which the system will subsequently do the necessary pre-print processing of halftoning in order to print out the corresponding image(s).
摘要翻译：本发明涉及一种用于具有不对称分辨率打印模式的打印机中的图像处理方法和系统。不对称分辨率被定义为具有n = X：Y的长宽比。该系统首先拾取对称分辨率的半色调表，然后通过使用诸如B样条法之类的插值的算法，将对称分辨率半色调表沿着宽度方向扩展n次以获得不对称的根据该表，系统将随后进行半色调的必要的预打印处理以便打印出相应的图像。

6. 发明申请

US20070216952A1 Image processing system and method for halftoning tuning 审中-公开
标题翻译：图像处理系统和半色调调整方法
公开(公告)号：US20070216952A1
公开(公告)日：2007-09-20
申请号：US11377306
申请日：2006-03-17
申请人： Guo-Tai Chen , Hui-Jan Chien
发明人： Guo-Tai Chen , Hui-Jan Chien
IPC分类号： G06K15/00
CPC分类号： H04N1/6052 , H04N1/52
摘要： An image processing system and method using the technique of halftoning. It first inputs into a second printer the image color scale data of a standard color test chart, on which the second printer performs halftoning using its built-in halftone table, in order to output a set of second image color level data. Next, it obtains a host printer function according to the image color scale data and the second image color level data and then establishes a correlation function between the host printer function and the standard function, according to which the halftone table is modified to become a dithered halftone table, bringing the subsequent print quality of the second printer closer to that of the standard function.
摘要翻译：一种使用半色调技术的图像处理系统和方法。它首先向第二个打印机输入标准颜色测试图的图像色标数据，其中第二打印机使用其内置半色调表执行半色调，以输出一组第二图像色彩级数据。接下来，根据图像色标数据和第二图像色彩数据获得主机打印机功能，然后在主机打印机功能和标准功能之间建立相关功能，根据该功能，修改半色调表以成为抖动半色调表，使第二台打印机的后续打印质量更接近标准功能。

7. 发明授权

US07542174B2 Image processing method for reducing jaggy effect 失效
标题翻译：减少锯齿效应的图像处理方法
公开(公告)号：US07542174B2
公开(公告)日：2009-06-02
申请号：US10974887
申请日：2004-10-28
申请人： Hui-Jan Chien
发明人： Hui-Jan Chien
IPC分类号： G06T5/00 , H04N1/407 , H04N1/409 , G06K9/40
CPC分类号： G06T5/002 , H04N1/405 , H04N1/4092
摘要： An image processing method for reducing jaggy effect, which is applied in an image output device, is provided. Firstly, a continuous tone image is generated, and continuous tone pixels are defined according to a first addressing space. Then, a halftone image is generated. After that, the continuous tone image is low-pass filtered to generate a low-pass filtered image. Next, determine whether a position of the low-pass filtered image whose density is approximate to a pre-determined density. If so, generate a set of second addressing space co-ordinates of a key point corresponding to the position. Then, a moving vector corresponding to the key point is generated so as to regulate the position of a display point of the halftone pixel. Afterward, output the display point according to the position after regulation.
摘要翻译：提供了一种用于减少应用在图像输出装置中的锯齿效果的图像处理方法。首先，生成连续色调图像，并根据第一寻址空间来定义连续色调像素。然后，产生半色调图像。之后，连续色调图像被低通滤波以生成低通滤波图像。接下来，确定密度近似于预定密度的低通滤波图像的位置。如果是，则生成与该位置对应的关键点的一组第二寻址空间坐标。然后，生成与关键点对应的移动矢量，以便调节半色调像素的显示点的位置。之后，根据调节后的位置输出显示点。

8. 发明授权

US07253927B2 Method of adjusting halftone image dot positions for improving print quality 有权
标题翻译：调整半色调图像点位置以提高打印质量的方法
公开(公告)号：US07253927B2
公开(公告)日：2007-08-07
申请号：US10605649
申请日：2003-10-15
申请人： Hui-Jan Chien , Jia-Hung Tsai
发明人： Hui-Jan Chien , Jia-Hung Tsai
IPC分类号： G06K15/00 , H04N1/46
CPC分类号： H04N1/4051
摘要： A method of adjusting positions of dots in an original halftone image for improving quality of printed images, the original halftone image including a plurality of pixels containing either dots to be printed or blank spaces. The method includes selecting a pixel in the original halftone image containing a selected dot to be printed, analyzing pixels in the original halftone image neighboring the selected pixel to determine if the neighboring pixels contain dots to be printed, adjusting the position of the selected dot in the selected pixel to increase an average distance between the selected dot and the dots in the neighboring pixels, and creating a modified halftone image in which the position of selected dot has been adjusted.
摘要翻译：一种调整原始半色调图像中的点的位置以提高打印图像质量的方法，原始半色调图像包括包含要打印的点或空格的多个像素。该方法包括选择包含要打印的所选点的原始半色调图像中的像素，分析与所选像素相邻的原始半色调图像中的像素，以确定相邻像素是否包含要打印的点，调整所选点的位置所选择的像素以增加所选择的点与相邻像素中的点之间的平均距离，并且创建其中已经调整了所选点的位置的改变的半色调图像。

9. 发明授权

US07333671B2 Image processing method to improve image sharpness 有权
标题翻译：图像处理方法提高图像清晰度
公开(公告)号：US07333671B2
公开(公告)日：2008-02-19
申请号：US10605422
申请日：2003-09-30
申请人： Hui-Jan Chien
发明人： Hui-Jan Chien
IPC分类号： G06K9/40
CPC分类号： G06T5/004 , G06T2207/10024
摘要： A method for processing an image to increase sharpness of the image without changing hue characteristics. The method includes performing a transformation process to transform an original image signal into CIE XYZ colorimetric channels, forming a luminance channel Y, applying a filter on the luminance channel Y to obtain a processed luminance channel Y″, computing processed colorimetric channels X″ and Z″ based on the processed luminance channel Y″, and performing an inverse transformation process to transform the processed colorimetric channels X″Y″Z″ into a processed image signal.
摘要翻译：一种用于处理图像以提高图像的清晰度而不改变色调特性的方法。该方法包括执行变换处理以将原始图像信号变换为CIE XYZ比色通道，形成亮度通道Y，在亮度通道Y上施加滤波器以获得经处理的亮度通道Y“，计算处理的比色通道X” 和Z“，并且执行逆变换处理，以将经处理的色度通道X''Y'Z”变换成经处理的图像信号。

10. 发明申请

US20050219633A1 Image processing method for reducing jaggy effect 失效
标题翻译：减少锯齿效应的图像处理方法
公开(公告)号：US20050219633A1
公开(公告)日：2005-10-06
申请号：US10974887
申请日：2004-10-28
申请人： Hui-Jan Chien
发明人： Hui-Jan Chien
IPC分类号： G06F3/12 , G06K9/40 , G06K15/02 , G06T5/00 , H04N1/405 , H04N1/407 , H04N1/409
CPC分类号： G06T5/002 , H04N1/405 , H04N1/4092
摘要： An image processing method for reducing jaggy effect, which is applied in an image output device, is provided. Firstly, a continuous tone image is generated, and continuous tone pixels are defined according to a first addressing space. Then, a halftone image is generated. After that, the continuous tone image is low-pass filtered to generate a low-pass filtered image. Next, determine whether a position of the low-pass filtered image whose density is approximate to a pre-determined density. If so, generate a set of second addressing space co-ordinates of a key point corresponding to the position. Then, a moving vector corresponding to the key point is generated so as to regulate the position of a display point of the halftone pixel. Afterward, output the display point according to the position after regulation.
摘要翻译：提供了一种用于减少应用在图像输出装置中的锯齿效果的图像处理方法。首先，生成连续色调图像，并根据第一寻址空间来定义连续色调像素。然后，产生半色调图像。之后，连续色调图像被低通滤波以生成低通滤波图像。接下来，确定密度近似于预定密度的低通滤波图像的位置。如果是，则生成与该位置对应的关键点的一组第二寻址空间坐标。然后，生成与关键点对应的移动矢量，以便调节半色调像素的显示点的位置。之后，根据调节后的位置输出显示点。

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