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    Image processing apparatus and method, and storage medium therefor
    2.
    发明公开
    Image processing apparatus and method, and storage medium therefor 有权
    图像处理设备和方法以及用于存储媒体

    公开(公告)号：EP1096782A3

    公开(公告)日：2002-04-17

    申请号：EP00309193.1

    申请日：2000-10-18

    申请人： CANON KABUSHIKI KAISHA

    发明人： Miyake, Nobutaka

    IPC分类号： H04N1/32 ,  H04N1/00

    CPC分类号： H04N1/32144 ,  G06T1/0021 ,  H04N2201/0082 ,  H04N2201/3233 ,  H04N2201/327

    摘要： When image information for the purpose of being printed out has been entered, whether or not the image information contains a mark image such as a watermark is determined to such an extent that will not lower the throughput of a printer. To accomplish this, the image is input and elapsed time starts being measured from the start of detection processing that is for detecting whether a specific image is contained in the input image. If time runs out during the course of detection processing, a decision is rendered to the effect that the image does not contain the specific image.

    Method and apparatus for adaptive scaling of a digital image
    3.
    发明公开
    Method and apparatus for adaptive scaling of a digital image 有权
    Verfahren undGerätzur adaptiving Skalierung eines Digitalbildes

    公开(公告)号：EP1056045A2

    公开(公告)日：2000-11-29

    申请号：EP00304294.2

    申请日：2000-05-22

    申请人： CANON KABUSHIKI KAISHA

    发明人： Miyake, Nobutaka

    IPC分类号： G06T3/40

    CPC分类号： G06T3/4007

    摘要： The present invention uses an image processing apparatus for inputting low-resolution video information, expanding one pixel to N×M pixels, and converting a low-resolution image into a high-resolution image, which comprises a first window formation unit for referring to peripheral pixels including a noticeable pixel, plural conversion units different from each other in conversion method for converting one pixel to N×M pixels, and a selection unit for selecting a proper conversion method out of the plural conversion units in accordance with a distribution state of pixels in a first window and in which the conversion units calculates conversion values for N×M pixels of the noticeable pixel in accordance with an evaluation result of the type of a selected conversion unit in adjacent pixels including the noticeable pixel in an evaluation unit. Thereby, when converting low-resolution information into high-resolution information, it is possible to realize a preferable conversion free from jaggies without causing halation due to interpolation and generate high-resolution information in which continuity is not broken at a boundary point for each conversion in conversions provided with nonlinearity.

    摘要翻译： 本发明使用图像处理装置，用于输入低分辨率视频信息，将一个像素扩展到N×M个像素，并将低分辨率图像转换成高分辨率图像，该图像处理装置包括：第一窗口形成单元，用于参考包括 一个明显的像素，在将一个像素转换成N×M个像素的转换方法中彼此不同的多个转换单元;以及选择单元，用于根据第一窗口中的像素的分布状态从多个转换单元中选择适当的转换方法 并且其中转换单元根据包括评估单元中的显着像素的相邻像素中所选择的转换单元的类型的评估结果来计算显着像素的N×M个像素的转换值。 因此，当将低分辨率信息转换为高分辨率信息时，可以实现没有锯齿状的优选转换，而不会由于插值而引起晕倒，并且产生在每个转换的边界点处连续性不会断开的高分辨率信息 在非线性提供的转化中。

    Image processing method and apparatus
    4.
    发明公开
    Image processing method and apparatus 失效
    图像处理方法和装置

    公开(公告)号：EP0863484A3

    公开(公告)日：1999-09-22

    申请号：EP98301597.5

    申请日：1998-03-04

    申请人： CANON KABUSHIKI KAISHA

    发明人： Miyake, Nobutaka

    IPC分类号： G06T3/40

    CPC分类号： G06T3/403

    摘要： This invention can easily forma smooth clear image with continuity particularly from a natural image without causing any interpolation blur or jaggy when converting input low-resolution information into high-resolution information. This invention includes a first window forming unit (102) for forming a first window for referring to nearest neighbor pixels of a low-resolution pixel of interest, a detecting unit (103) for detecting a plurality of representative values from the first window, a converting unit (105) for converting the value of the pixel of interest by an adaptive LPF, a second window forming unit (106) for forming a second window for referring to the converted values of the nearest neighbor pixels including the pixel of interest, and a high-resolution information forming unit (107) including a linear interpolating unit for performing linear interpolation on the basis of the pixel value information in the first window or the converted value information in the second window and a nonlinear interpolating unit for performing nonlinear interpolation by a product-sum operation of the linearly interpolated values from the linear interpolating unit and the representative values.

    摘要翻译： 当将输入的低分辨率信息转换为高分辨率信息时，本发明可以容易地形成具有连续性的平滑清晰的图像，特别是从自然图像产生连续性，而不引起任何插值模糊或锯齿。 本发明包括：第一窗口形成单元（102），用于形成用于参照感兴趣的低分辨率像素的最近邻像素的第一窗口;检测单元（103），用于从第一窗口检测多个代表值; 用于通过自适应LPF转换感兴趣像素的值的转换单元（105），用于形成第二窗口的第二窗口形成单元（106），用于参考包括感兴趣像素的最近邻近像素的转换值，以及 高分辨率信息形成单元（107），其包括线性内插单元和非线性内插单元，非线性内插单元用于基于第一窗口中的像素值信息或第二窗口中的经过变换的值信息来执行线性内插， 来自线性内插单元的线性内插值和代表值的乘积和操作。

    Image processing apparatus, and method, and storage medium
    8.
    发明公开
    Image processing apparatus, and method, and storage medium 有权
    Bildverarbeitungsgerät，Verfahren und Speichermedium

    公开(公告)号：EP1041814A2

    公开(公告)日：2000-10-04

    申请号：EP00302286.0

    申请日：2000-03-21

    申请人： CANON KABUSHIKI KAISHA

    发明人： Miyake, Nobutaka

    IPC分类号： H04N1/32

    CPC分类号： H04N1/32203 ,  H04N1/32256

    摘要： A texture which is not normally generated by a pseudo halftone process is artificially generated by combining quantization values (S307, S308), and a 1-bit code is expressed by the presence/absence of texture.

    摘要翻译： 通过组合量化值（S307，S308）人为地生成通常由伪半色调处理产生的纹理，并且1位代码由纹理的存在/不存在表示。

    Image processing apparatus and method
    9.
    发明公开
    Image processing apparatus and method 失效
    图像处理设备和方法

    公开(公告)号：EP0803841A2

    公开(公告)日：1997-10-29

    申请号：EP97302833.5

    申请日：1997-04-24

    申请人： CANON KABUSHIKI KAISHA

    发明人： Miyake, Nobutaka

    IPC分类号： G06T3/40

    CPC分类号： G06T3/403

    摘要： An image processing apparatus includes a window setting unit for setting a window including a target pixel and pixels surrounding the target pixel of input low-resolution information, a detection unit for detecting MAX and MIN values from among the pixels within the window, a quantization unit for quantizing information relating to each pixel having n values within the window into a value smaller than n, an LUT (look-up table) for determining a distribution ratio of the MAX and MIN values based on quantized values provided by the quantization unit within the window, a transformation unit for synthesizing the MAX and MIN values based on the distribution ratio, and a forming unit for forming high-resolution information from synthesized values. It is thereby possible to obtain excellent pixture quality having a high degree of freedom in the disign of an image at a speed higher than ever when converting input low-resolution information into high-resolution information.

    摘要翻译： 一种图像处理设备包括：窗口设置单元，用于设置包括目标像素和围绕输入低分辨率信息的目标像素的像素的窗口;检测单元，用于从窗口内的像素中检测MAX和MIN值;量化单元 用于量化与窗口内具有n个值的每个像素相关的信息为小于n的值; LUT（查找表），用于基于量化单元提供的量化单元确定MAX和MIN值的分配比率 窗口，用于基于分配比合成MAX和MIN值的变换单元以及用于从合成值形成高分辨率信息的形成单元。 由此，在将输入的低分辨率信息转换为高分辨率信息时，能够以比以往更高的速度获得在图像的排列上具有高自由度的优异的图像质量。