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公开(公告)号：US4903142A
公开(公告)日：1990-02-20
申请号：US372159
申请日：1989-06-27
CPC分类号： H04N1/40075
摘要： The present invention provides an image processing apparatus for estimating a halftone image from an original binary coded image, wherein there are provided a plurality of line memories for introducing the original binary coded image data and for transferring the data into a shift-register being set therein plural kinds of scanning windows, a computing circuit for counting black pixels within each of the plural kinds of scanning windows, a density pattern-discriminating circuit for performing the comparison judgment between the original binary image and the rebinary image based on the computed value, a conditional formula circuit for performing conditional inequality algorism, and a window judgment circuit having a predetermined truth table for selecting one optimum scanning window.
摘要翻译： 本发明提供了一种用于从原始二进制编码图像估计半色调图像的图像处理装置，其中设置有用于引入原始二进制编码图像数据并将数据传送到其中设置的移位寄存器的多个行存储器 多种扫描窗口，用于计算多种扫描窗口中的每一种的黑色像素的计算电路，用于根据计算值执行原始二值图像与重新绘制图像之间的比较判断的浓度图案鉴别电路， 用于执行条件不等式算法的条件公式电路，以及具有用于选择一个最佳扫描窗口的预定真值表的窗口判断电路。
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公开(公告)号：US4803558A
公开(公告)日：1989-02-07
申请号：US929622
申请日：1986-11-10
CPC分类号： H04N1/3935 , H04N1/40075
摘要： The present invention relates to a method of estimating a halftone image in which a plurality of scanning unit areas including, at least, a unit area of (1 pixel.times.1 pixel) are set in a binary image consisting of white and black regions; a binary image obtained from estimated values based on a ratio between white and black regions within the scanning unit area; an estimated value of an optimum scanning unit area is obtained per every pixel of the halftone image is produced based on the estimated value; and further the estimated halftone image is reconverted to a binary image after processing of enlarging or reducing.
摘要翻译： 本发明涉及一种估计半色调图像的方法，其中至少包括（1像素×1像素）的单位面积被设置在由白色和黑色区域组成的二值图像中的多个扫描单位区域; 基于扫描单位区域内的白色区域和黑色区域之间的比例从估计值获得的二值图像; 基于估计值，产生每个半色调图像的每个像素的最佳扫描单位面积的估计值; 并且在放大或缩小的处理之后，估计的半色调图像再转换为二进制图像。
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公开(公告)号：US4717964A
公开(公告)日：1988-01-05
申请号：US929630
申请日：1986-11-10
IPC分类号： H04N1/40
CPC分类号： H04N1/40075
摘要： The present invention is to provide an image processing apparatus having structure for forming a halftone image in such manner that, on a multicoded image consisting of regions differing in density formed by multicoding by using a prescribed threshold value matrix, a plurality of differing scanning unit areas are brought each to the multicoded image for each pixel in a successive manner so as to obtain values based on the ratios between the regions differing in density of the multicoded image within the unit areas, then density patterns are obtained from the above value by using the threshold value matrix, and then the halftone image is made by comparing the density patterns with the multicoded image within the unit areas, and the image processing apparatus further has structure for making the position of the threshold value matrix used for obtaining the multicoded image coincide with the position of the threshold value matrix used for obtaining the density pattern.
摘要翻译： 本发明提供一种具有形成半色调图像的结构的图像处理装置，其特征在于，在由通过使用规定的阈值矩阵的多重编码形成的密度不同的区域构成的多重图像上，具有多个不同的扫描单位区域 以连续的方式将每个像素分别连接到多重图像，以便基于单位区域内的多重图像的密度不同的区域之间的比率获得值，然后通过使用上述值从上述值获得密度模式 阈值矩阵，然后通过将密度图案与单位区域内的多重图像进行比较来进行半色调图像，并且图像处理装置还具有用于使用于获得多重图像的阈值矩阵的位置与 用于获得密度模式的阈值矩阵的位置。
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公开(公告)号：US4980760A
公开(公告)日：1990-12-25
申请号：US303491
申请日：1989-01-27
摘要： An image processing apparatus includes an image data forming unit for forming density data corresponding to each of a plurality of color components including an achromatic color and color data for discriminating a chromatic color portion from an achromatic color portion of an image, the density data and the color data being formed in units of pixels on the basis of original image information, a density data selector for selecting one of a plurality of density data output from the image data forming unit, color ghost correction for unit for changing the color data of a pixel when a serial arrangement of color data of a plurality of successive pixels including the pixel coincides with one of a plurality of predetermined patterns.
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5.发明授权
公开(公告)号：US4758897A
公开(公告)日：1988-07-19
申请号：US856954
申请日：1986-04-28
IPC分类号： H04N1/40
CPC分类号： H04N1/40075
摘要： According to a method and apparatus for estimating a halftone image, a unit area is set and shifted by a focusing lens and a photoelectric transducer in a binary image consisting of black and white regions, and the halftone image is estimated on the basis of a ratio of the white regions to the black regions within each unit area. The number of white pixels is counted by an A/D converter. When different unit areas are used, a specific one satisfying predetermined conditions is selected and shifted in the binary image, and prestored image data is read out from RAMs by column and row address generators and calculated to obtain a halftone estimated value within each unit area. The binary image can be thus a Bayer dither image or a digital binary image.
摘要翻译： 根据用于估计半色调图像的方法和装置，通过由黑色和白色区域组成的二值图像中的聚焦透镜和光电变换器来设置和偏移单位区域，并且基于比例来估计半色调图像 的白色区域到每个单位区域内的黑色区域。 白色像素的数量由A / D转换器计数。 当使用不同的单元区域时，在二进制图像中选择并移位满足预定条件的特定的一个，并且通过列和行地址生成器从RAM中读出预存储的图像数据，并计算得到每个单位区域内的半色调估计值。 二进制图像可以是拜耳抖动图像或数字二值图像。
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6.发明授权
公开(公告)号：US5357354A
公开(公告)日：1994-10-18
申请号：US3864
申请日：1993-01-11
申请人： Masahiko Matsunawa , Seiichiro Hiratsuka , Koji Washio , Hiroshi Tokunaga , Tadao Kishimoto , Takashi Hasebe
发明人： Masahiko Matsunawa , Seiichiro Hiratsuka , Koji Washio , Hiroshi Tokunaga , Tadao Kishimoto , Takashi Hasebe
CPC分类号： H04N1/6027 , H04N1/60 , H04N1/6016
摘要： An image processing apparatus for processing a digital color signal, given from outside the image processing apparatus, into a digital color recording signal, comprising; a color code generator for generating a color code signal representing a color of a digital pixel image signal, and a color reproduction unit for generating a color recording signal by processing another digital pixel image signal, in which these two digital pixel image signals are processed separately.
摘要翻译： 一种用于处理从图像处理装置外部给出的数字彩色信号的数字彩色记录信号的图像处理装置，包括： 用于产生表示数字像素图像信号的颜色的颜色代码信号的颜色代码发生器和用于通过处理另外的数字像素图像信号来生成颜色记录信号的颜色再现单元，其中分别处理这两个数字像素图像信号 。
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7.发明授权
公开(公告)号：US5208663A
公开(公告)日：1993-05-04
申请号：US918136
申请日：1992-07-23
CPC分类号： G06T7/408 , H04N1/58 , H04N1/60 , G06T2207/10008 , G06T2207/10024 , G06T2207/30176
摘要： An image processing apparatus including input terminals for introducing color image data in the form of pixels obtained by reading an original image, a classifying circuit for classifying a color of each pixel as either an achromatic color, a chromatic color, or an intermediate color by processing the color image data in accordance with classifying criterion, a discrimination circuit for discriminating a kind of the original image on the basis of the color image data, the classifying circuit being capable of changing the classifying criterion in accordance with the discriminated kind of the original image.
摘要翻译： 一种图像处理装置，包括用于以通过读取原始图像获得的像素的形式引入彩色图像数据的输入端子，通过处理将每个像素的颜色分类为无彩色，彩色或中间颜色的分类电路 根据分类标准的彩色图像数据，用于基于彩色图像数据鉴别原始图像的种类的鉴别电路，分类电路能够根据原始图像的识别种类来改变分类标准 。
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8.发明授权Color image processing apparatus with digital color signal compression means 失效具有数字彩色信号压缩手段的彩色图像处理装置
公开(公告)号：US5119184A
公开(公告)日：1992-06-02
申请号：US498905
申请日：1990-03-26
CPC分类号： H04N1/6025 , H04N1/56
摘要： The invention provides a color image-processing apparatus in which there is provided a color reproduction table for producing plural color image signals for each of a plurality of processing channels in response to digital pixel signals splitted into said plurality of processing channels. There is further provided a signal processor for modifying a bit configuration of the digital pixel signals so that the bit configuration is differently modified corresponding to each of said plurality of processing channels. The produced plural color image signals are composed into one channel to form a new color image.
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公开(公告)号：US4841377A
公开(公告)日：1989-06-20
申请号：US62556
申请日：1987-06-11
IPC分类号： H04N1/405
CPC分类号： H04N1/4051
摘要： A continuous image estimation method of a binary image wherein only one scanning aperture satisfying a predetermined condition for each picture element of a continuous image to be estimated from a plurality of scanning apertures for each kind in a dither image formed of a dither matrix, and the continuous image is estimated on the basis of the number of white or black picture elements in the scanning aperture selected. The predetermined condition is that a gradation expression is conducted in a lower spatial frequency range by using larger scanning apertures and in a higher spatial frequency range by using smaller scanning apertures, and that for the coincidence between patterns of a dither image in the scanning aperture and a binary image, which is made binary with the dither matrix from a continuous image formed on the bases of the number of the white or black picture elements in the scanning aperture, the patterns being obtained by comparing the dither image and the binary image for each aperture.
摘要翻译： 一种二值图像的连续图像估计方法，其中在由抖动矩阵形成的抖动图像中，从用于各种的多个扫描孔径估计连续图像的每个图像的每个图像的仅满足预定条件的一个扫描孔径， 基于选择的扫描光圈中的白色或黑色像素的数量来估计连续图像。 预定条件是通过使用更大的扫描孔径，并且在较高的空间频率范围内，通过使用较小的扫描孔径，在较低的空间频率范围内进行灰度表达，并且对于扫描孔径中的抖动图像的图案和 二进制图像，其由扫描孔径中的白色或黑色像素的数量形成的连续图像中的抖动矩阵制成二进制图案，通过将抖动图像和二值图像进行比较而获得的图案 光圈。
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公开(公告)号：US4768082A
公开(公告)日：1988-08-30
申请号：US12832
申请日：1987-02-10
CPC分类号： H04N1/646 , H04N1/4105
摘要： A color image data compressing method wherein after the primary color signals of a digital color image have been converted into luminance signals and component color signals, these component color signals are compressed to generate compressed color signals, and the compressed color signals and the luminance signals are binarily processed, respectively, to form information-compressed binary images. The binary images are dither images by the dither method.
摘要翻译： 一种彩色图像数据压缩方法，其中在数字彩色图像的原色信号已经被转换成亮度信号和分量颜色信号之后，这些分量颜色信号被压缩以产生压缩的彩色信号，压缩的彩色信号和亮度信号是 分别进行二进制处理，形成信息压缩的二进制图像。 二进制图像是抖动方法的抖动图像。
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