Image processing method and apparatus therefor
    11.
    发明授权
    Image processing method and apparatus therefor 失效
    图像处理方法及其装置

    公开(公告)号:US5742296A

    公开(公告)日:1998-04-21

    申请号:US479859

    申请日:1995-06-07

    CPC分类号: H04N1/6058

    摘要: An image processing method for executing image data conversion between different types of input and output devices having different color reproduction ranges, and an apparatus therefor are disclosed. A device independent color reproduction range is calculated in, e.g., a CIE L*a*b* uniform color space, and a color reproduction range depending on a device such as a binary recording color printer is calculated. Only a saturation is compressed at a compression ratio corresponding to the ratio of the two calculated color reproduction ranges. Thus, when an output device outputs a color image, image qualities (color reproducibilities) of input and output images can be equalized. Even when a color outside the color reproduction range of the output device is to be output, a satisfactory output which preserves gradation characteristics can be obtained.

    摘要翻译: 公开了一种用于在具有不同颜色再现范围的不同类型的输入和输出装置之间执行图像数据转换的图像处理方法及其装置。 在例如CIE L * a * b *均匀颜色空间中计算与设备无关的色彩再现范围,并且计算取决于诸如二进制记录彩色打印机的设备的色彩再现范围。 只有饱和度以对应于两个计算出的颜色再现范围的比率的压缩比进行压缩。 因此,当输出设备输出彩色图像时,输入和输出图像的图像质量(颜色再现性)可以相等。 即使输出输出装置的颜色再现范围之外的颜色,也能获得保持灰度特性的令人满意的输出。

    Image processing apparatus and method thereof
    12.
    发明授权
    Image processing apparatus and method thereof 有权
    图像处理装置及其方法

    公开(公告)号:US07315385B2

    公开(公告)日:2008-01-01

    申请号:US09987779

    申请日:2001-11-16

    CPC分类号: H04N1/46

    摘要: Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output unit, the signal format of image data to be supplied from the input unit to the output unit is controlled.

    摘要翻译: 使用不同信号处理系统的输入和输出单元不能连接到单个图像输入设备。 基于由输入单元获取的图像数据的信号格式和可由输出单元处理的图像数据的信号格式,控制从输入单元提供给输出单元的图像数据的信号格式 。

    Apparatus and method for converting spectral data of an object in a photographing environment into spectral data in an observation environment
    13.
    发明授权
    Apparatus and method for converting spectral data of an object in a photographing environment into spectral data in an observation environment 有权
    将摄影环境中的物体的光谱数据转换为观察环境中的光谱数据的装置和方法

    公开(公告)号:US07230642B2

    公开(公告)日:2007-06-12

    申请号:US10012377

    申请日:2001-12-12

    IPC分类号: H04N5/235

    CPC分类号: H04N5/335 H04N9/045

    摘要: A photographing environmental light spectral distribution detector acquires spectral distribution data of photographing environmental light upon photographing an object image, and an observation environmental light spectral distribution data detector acquires those of environmental light used upon observing a reproduced image. A signal processor converts an image signal photographed by a camera under the photographing environmental light in accordance with the spectral distribution data of respective types of environmental light, generates colorimetric data that an output unit can output, and outputs the colorimetric data to the output unit, thus accurately reproducing the original color of the object while the object is placed under the observation environmental light.

    摘要翻译: 拍摄环境光谱分布检测器拍摄对象图像时拍摄环境光的光谱分布数据,并且观测环境光谱分布数据检测器获取观察再现图像时所使用的环境光的光谱分布数据。 信号处理器根据各种环境光的光谱分布数据,在摄影环境光下转换照相机拍摄的图像信号,产生输出单元可以输出的色度数据,并将色度数据输出到输出单元, 从而在物体放置在观察环境光下时准确地再现物体的原始颜色。

    Image processing apparatus and method
    14.
    发明授权
    Image processing apparatus and method 失效
    图像处理装置及方法

    公开(公告)号:US06333788B1

    公开(公告)日:2001-12-25

    申请号:US08807606

    申请日:1997-02-27

    IPC分类号: G06F1500

    摘要: The luminance frequencies are calculated in units of blocks in a multi-valued image, and the binarization threshold values in units of blocks are calculated on the basis of the calculated luminance frequencies. By interpolating the binarization threshold values in units of blocks, the binarization threshold values in units of pixels are calculated, and the multi-valued image is binarized using the binarization threshold values in units of pixels.

    摘要翻译: 以多值图像中的块为单位计算亮度频率,并且基于所计算的亮度频率来计算以块为单位的二值化阈值。 通过以块为单位内插二值化阈值,计算以像素为单位的二值化阈值,并且使用以像素为单位的二值化阈值对多值图像进行二值化。

    Image processing system, apparatus, and method, and color reproduction method
    15.
    发明授权
    Image processing system, apparatus, and method, and color reproduction method 有权
    图像处理系统,装置和方法以及色彩再现方法

    公开(公告)号:US07986438B2

    公开(公告)日:2011-07-26

    申请号:US12327694

    申请日:2008-12-03

    IPC分类号: H04N1/60

    摘要: In a system for converting an input image signal input from an image input device into an output image signal to be output by an image output device, an image compression unit converts a spectral image input via an image input unit into R, G, and B data, obtains principal component data by making principal component analysis of the spectral image, and stores these data in an input image storage unit. When the principal component data and R, G, and B data are loaded and stored in an output image storage unit, a spectral reflectance reconstruction unit reconstructs the spectral reflectance of each pixel using these data. A printer model determines the dot quantities of inks used to record each pixel in an image output device on the basis of the calculated spectral reflectance, and generates an output image signal for the image output device. In this way, image data which allows to estimate the spectral reflectance characteristics of an input image is provided, and faithful color reproduction can be realized.

    摘要翻译: 在用于将从图像输入装置输入的输入图像信号转换成由图像输出装置输出的输出图像信号的系统中,图像压缩单元将经由图像输入单元输入的分光图像转换为R,G和B 数据,通过对光谱图像进行主成分分析来获得主成分数据,并将这些数据存储在输入图像存储单元中。 当主成分数据和R,G和B数据被加载并存储在输出图像存储单元中时,光谱反射率重建单元使用这些数据重建每个像素的光谱反射率。 打印机型号基于所计算的光谱反射率确定用于记录图像输出装置中的每个像素的墨水的点数,并且生成用于图像输出装置的输出图像信号。 以这种方式,提供允许估计输入图像的光谱反射特性的图像数据,并且可以实现忠实的色彩再现。

    IMAGE PROCESSING SYSTEM, APPARATUS, AND METHOD, AND COLOR REPRODUCTION METHOD
    17.
    发明申请
    IMAGE PROCESSING SYSTEM, APPARATUS, AND METHOD, AND COLOR REPRODUCTION METHOD 有权
    图像处理系统,装置和方法以及彩色再现方法

    公开(公告)号:US20090080009A1

    公开(公告)日:2009-03-26

    申请号:US12327694

    申请日:2008-12-03

    IPC分类号: H04N1/60

    摘要: In a system for converting an input image signal input from an image input device into an output image signal to be output by an image output device, an image compression unit converts a spectral image input via an image input unit into R, G, and B data, obtains principal component data by making principal component analysis of the spectral image, and stores these data in an input image storage unit. When the principal component data and R, G, and B data are loaded and stored in an output image storage unit, a spectral reflectance reconstruction unit reconstructs the spectral reflectance of each pixel using these data. A printer model determines the dot quantities of inks used to record each pixel in an image output device on the basis of the calculated spectral reflectance, and generates an output image signal for the image output device. In this way, image data which allows to estimate the spectral reflectance characteristics of an input image is provided, and faithful color reproduction can be realized.

    摘要翻译: 在用于将从图像输入装置输入的输入图像信号转换成由图像输出装置输出的输出图像信号的系统中,图像压缩单元将经由图像输入单元输入的分光图像转换为R,G和B 数据,通过对光谱图像进行主成分分析来获得主成分数据,并将这些数据存储在输入图像存储单元中。 当主成分数据和R,G和B数据被加载并存储在输出图像存储单元中时,光谱反射率重建单元使用这些数据重建每个像素的光谱反射率。 打印机型号基于所计算的光谱反射率确定用于记录图像输出装置中的每个像素的墨水的点数,并且生成用于图像输出装置的输出图像信号。 以这种方式,提供允许估计输入图像的光谱反射特性的图像数据,并且可以实现忠实的色彩再现。

    Image processing system, apparatus, and method, and color reproduction method
    18.
    发明授权
    Image processing system, apparatus, and method, and color reproduction method 失效
    图像处理系统,装置和方法以及色彩再现方法

    公开(公告)号:US07480083B2

    公开(公告)日:2009-01-20

    申请号:US10927234

    申请日:2004-08-27

    IPC分类号: H04N1/04

    摘要: In a system for converting an input image signal input from an image input device into an output image signal to be output by an image output device, an image compression unit converts a spectral image input via an image input unit into R, G, and B data, obtains principal component data by making principal component analysis of the spectral image, and stores these data in an input image storage unit. When the principal component data and R, G, and B data are loaded and stored in an output image storage unit, a spectral reflectance reconstruction unit reconstructs the spectral reflectance of each pixel using these data. A printer model determines the dot quantities of inks used to record each pixel in an image output device on the basis of the calculated spectral reflectance, and generates an output image signal for the image output device. In this way, image data which allows to estimate the spectral reflectance characteristics of an input image is provided, and faithful color reproduction can be realized.

    摘要翻译: 在用于将从图像输入装置输入的输入图像信号转换成由图像输出装置输出的输出图像信号的系统中,图像压缩单元将经由图像输入单元输入的分光图像转换为R,G和B 数据,通过对光谱图像进行主成分分析来获得主成分数据,并将这些数据存储在输入图像存储单元中。 当主成分数据和R,G和B数据被加载并存储在输出图像存储单元中时,光谱反射率重建单元使用这些数据重建每个像素的光谱反射率。 打印机型号基于所计算的光谱反射率确定用于记录图像输出装置中的每个像素的墨水的点数,并且生成用于图像输出装置的输出图像信号。 以这种方式,提供允许估计输入图像的光谱反射特性的图像数据,并且可以实现忠实的色彩再现。

    Image processing apparatus and method that use sample spectral distribution data selected based on color data from an object to estimate spectral distribution of a wavelength region
    19.
    发明授权
    Image processing apparatus and method that use sample spectral distribution data selected based on color data from an object to estimate spectral distribution of a wavelength region 失效
    使用基于来自对象的颜色数据选择的样本光谱分布数据来估计波长区域的光谱分布的图像处理装置和方法

    公开(公告)号:US07251359B2

    公开(公告)日:2007-07-31

    申请号:US10006724

    申请日:2001-12-10

    IPC分类号: G06K9/00

    CPC分类号: G06T1/0007

    摘要: Estimating the spectral distribution of an object requires not only the time of image sensing by a multi-spectrum camera but also, in order to process all band information acquired, large amounts of memories for storing all the band information of all pixels, and the processing time for processing all the band information. In this invention, when the spectral distribution data of a total wavelength region is to be estimated from color data and a plurality of spectral distribution data different in wavelength region, the color data is acquired, and, on the basis of the configuration of spectral distribution data defined in accordance with the acquired color data, spectral distribution data necessary for the estimation is acquired. In this way, the spectral distribution data of the total wavelength region is estimated.

    摘要翻译: 估计对象的光谱分布不仅需要多光谱照相机的图像感测时间,而且为了处理所获得的所有频带信息,需要大量用于存储所有像素的所有频带信息的存储器和处理 处理所有频带信息的时间。 在本发明中,当要从彩色数据和波长区域不同的多个频谱分布数据估计总波长区域的频谱分布数据时,获取颜色数据,并且基于频谱分布的配置 根据获取的颜色数据定义的数据,获取估计所需的频谱分布数据。 以这种方式,估计总波长区域的光谱分布数据。

    Image processing system, apparatus, and method, and color reproduction method
    20.
    发明申请
    Image processing system, apparatus, and method, and color reproduction method 失效
    图像处理系统,装置和方法以及色彩再现方法

    公开(公告)号:US20050111017A1

    公开(公告)日:2005-05-26

    申请号:US10927234

    申请日:2004-08-27

    IPC分类号: B41B1/00 H04N1/60

    摘要: In a system for converting an input image signal input from an image input device into an output image signal to be output by an image output device, an image compression unit converts a spectral image input via an image input unit into R, G, and B data, obtains principal component data by making principal component analysis of the spectral image, and stores these data in an input image storage unit. When the principal component data and R, G, and B data are loaded and stored in an output image storage unit, a spectral reflectance reconstruction unit reconstructs the spectral reflectance of each pixel using these data. A printer model determines the dot quantities of inks used to record each pixel in an image output device on the basis of the calculated spectral reflectance, and generates an output image signal for the image output device. In this way, image data which allows to estimate the spectral reflectance characteristics of an input image is provided, and faithful color reproduction can be realized.

    摘要翻译: 在用于将从图像输入装置输入的输入图像信号转换成由图像输出装置输出的输出图像信号的系统中,图像压缩单元将经由图像输入单元输入的分光图像转换为R,G和B 数据,通过对光谱图像进行主成分分析来获得主成分数据,并将这些数据存储在输入图像存储单元中。 当主成分数据和R,G和B数据被加载并存储在输出图像存储单元中时,光谱反射率重建单元使用这些数据重建每个像素的光谱反射率。 打印机型号基于所计算的光谱反射率确定用于记录图像输出装置中的每个像素的墨水的点数,并且生成用于图像输出装置的输出图像信号。 以这种方式,提供允许估计输入图像的光谱反射特性的图像数据,并且可以实现忠实的色彩再现。