Image forming apparatus and method
    1.
    发明授权
    Image forming apparatus and method 有权
    图像形成装置及方法

    公开(公告)号:US08554000B2

    公开(公告)日:2013-10-08

    申请号:US12013608

    申请日:2008-01-14

    IPC分类号: G06K9/36

    CPC分类号: H04N1/40062 H04N1/6016

    摘要: An image forming apparatus and an image forming method thereof are provided. An image forming apparatus according to an exemplary embodiment of the present general inventive concept comprises a decoder to decode a compressed image to convert the compressed image into image data, a pure black determining unit to determine whether the image data is pure black by using information of the converted image data, a section classifying unit to classify the image data into a text section and an image section by using a result of the pure black determination, and a color coordinate converter to perform color coordinate conversion on the image section of the classified sections. Therefore, it is possible to improve readability of black text.

    摘要翻译: 提供了一种图像形成装置及其图像形成方法。 根据本发明总体构思的示例性实施例的图像形成装置包括:解码器,用于解码压缩图像以将压缩图像转换成图像数据;纯黑色确定单元,用于通过使用图像数据的信息来确定图像数据是否为纯黑色 转换的图像数据,通过使用纯黑色确定的结果将图像数据分类为文本部分和图像部分的部分分类单元和对分类部分的图像部分执行颜色坐标转换的颜色坐标转换器 。 因此,可以提高黑色文本的可读性。

    IMAGE FORMING APPARATUS AND METHOD
    2.
    发明申请
    IMAGE FORMING APPARATUS AND METHOD 有权
    图像形成装置和方法

    公开(公告)号:US20080317360A1

    公开(公告)日:2008-12-25

    申请号:US12013608

    申请日:2008-01-14

    IPC分类号: G06K9/36

    CPC分类号: H04N1/40062 H04N1/6016

    摘要: An image forming apparatus and an image forming method thereof are provided. An image forming apparatus according to an exemplary embodiment of the present general inventive concept comprises a decoder to decode a compressed image to convert the compressed image into image data, a pure black determining unit to determine whether the image data is pure black by using information of the converted image data, a section classifying unit to classify the image data into a text section and an image section by using a result of the pure black determination, and a color coordinate converter to perform color coordinate conversion on the image section of the classified sections. Therefore, it is possible to improve readability of black text.

    摘要翻译: 提供了一种图像形成装置及其图像形成方法。 根据本发明总体构思的示例性实施例的图像形成装置包括:解码器,用于解码压缩图像以将压缩图像转换成图像数据;纯黑色确定单元,用于通过使用图像数据的信息来确定图像数据是否为纯黑色 转换的图像数据,通过使用纯黑色确定的结果将图像数据分类为文本部分和图像部分的部分分类单元和对分类部分的图像部分执行颜色坐标转换的颜色坐标转换器 。 因此,可以提高黑色文本的可读性。

    Image forming apparatus analyzing color chrominance data to determine type of document to be printed
    3.
    发明授权
    Image forming apparatus analyzing color chrominance data to determine type of document to be printed 有权
    分析彩色色度数据的图像形成装置,以确定要打印的文档的类型

    公开(公告)号:US08395818B2

    公开(公告)日:2013-03-12

    申请号:US13462512

    申请日:2012-05-02

    申请人: Jeong Hwan Cho

    发明人: Jeong Hwan Cho

    IPC分类号: H04N1/50 H04N1/56

    CPC分类号: H04N1/46 H04N1/6072

    摘要: An image forming apparatus and a method of controlling the same in which input image data is divided into blocks and color chrominance data of each block is analyzed thereby perform a print job by automatically detecting whether an image should be print in color or pure black.

    摘要翻译: 分析其中输入图像数据被划分成块和每个块的彩色色度数据的图像形成装置及其控制方法,从而通过自动检测图像是否应该是彩色印刷或纯黑色来执行打印作业。

    Image forming apparatus and method of control based on color chrominance data
    4.
    发明授权
    Image forming apparatus and method of control based on color chrominance data 有权
    基于彩色色度数据的图像形成装置和控制方法

    公开(公告)号:US08194284B2

    公开(公告)日:2012-06-05

    申请号:US12035807

    申请日:2008-02-22

    申请人: Jeong Hwan Cho

    发明人: Jeong Hwan Cho

    IPC分类号: H04N1/50 H04N1/56 H04N1/60

    CPC分类号: H04N1/46 H04N1/6072

    摘要: An image forming apparatus and a method of controlling the same in which input image data is divided into blocks and color chrominance data of each block is analyzed thereby perform a print job by automatically detecting whether an image should be print in color or pure black.

    摘要翻译: 分析其中输入图像数据被划分成块和每个块的彩色色度数据的图像形成装置及其控制方法,从而通过自动检测图像是否应该是彩色印刷或纯黑色来执行打印作业。

    IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME
    5.
    发明申请
    IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME 有权
    图像形成装置及其控制方法

    公开(公告)号:US20080204810A1

    公开(公告)日:2008-08-28

    申请号:US12035807

    申请日:2008-02-22

    申请人: Jeong Hwan CHO

    发明人: Jeong Hwan CHO

    IPC分类号: G06K15/00

    CPC分类号: H04N1/46 H04N1/6072

    摘要: An image forming apparatus and a method of controlling the same in which input image data is divided into blocks and color chrominance data of each block is analyzed thereby perform a print job by automatically detecting whether an image should be print in color or pure black.

    摘要翻译: 分析其中输入图像数据被划分成块和每个块的彩色色度数据的图像形成装置及其控制方法,从而通过自动检测图像是否应该是彩色印刷或纯黑色来执行打印作业。

    IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME
    6.
    发明申请
    IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME 有权
    图像形成装置及其控制方法

    公开(公告)号:US20120212785A1

    公开(公告)日:2012-08-23

    申请号:US13462512

    申请日:2012-05-02

    申请人: Jeong Hwan CHO

    发明人: Jeong Hwan CHO

    IPC分类号: G06K15/02

    CPC分类号: H04N1/46 H04N1/6072

    摘要: An image forming apparatus and a method of controlling the same in which input image data is divided into blocks and color chrominance data of each block is analyzed thereby perform a print job by automatically detecting whether an image should be print in color or pure black.

    摘要翻译: 分析其中输入图像数据被划分成块和每个块的彩色色度数据的图像形成装置及其控制方法,从而通过自动检测图像是否应该是彩色印刷或纯黑色来执行打印作业。

    Apparatus and method for processing image data using error diffusion
    7.
    发明申请
    Apparatus and method for processing image data using error diffusion 审中-公开
    使用误差扩散处理图像数据的装置和方法

    公开(公告)号:US20070086662A1

    公开(公告)日:2007-04-19

    申请号:US11522980

    申请日:2006-09-19

    IPC分类号: G06K9/36 G06K9/40

    摘要: An apparatus and method are provided for processing image data using error diffusion. The apparatus and method decode image data compressed in a joint photographic experts group (JPEG) format, convert the image data into color coordinates without storing the image data in a memory, and perform a binarization by calculating error values in accordance with the image data in the unit of block to generate a final output data which is 1 bit long. Since the apparatus and method for processing image data using error diffusion do not require an operation of transmitting and storing the image data to a system memory through a DMA controller, the performance of a system is improved. Also, since the memory does not require a large storage space to store the decoded image data, its utility is improved.

    摘要翻译: 提供了一种使用误差扩散处理图像数据的装置和方法。 该装置和方法解码以联合摄影专家组(JPEG)格式压缩的图像数据,将图像数据转换为色坐标而不将图像数据存储在存储器中,并且根据图像数据中的图像数据计算误差值来执行二值化 块的单位生成1位长的最终输出数据。 由于使用误差扩散处理图像数据的装置和方法不需要通过DMA控制器将图像数据发送和存储到系统存储器的操作,所以提高了系统的性能。 此外,由于存储器不需要大的存储空间来存储解码的图像数据,因此其效用得到改善。