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11.发明授权
公开(公告)号：US5742348A
公开(公告)日：1998-04-21
申请号：US662293
申请日：1996-06-07
IPC分类号： H04N19/132 , G06T3/40 , H04N1/00 , H04N1/393 , H04N5/44 , H04N5/46 , H04N7/01 , H04N7/24 , H04N19/00 , H04N19/134 , H04N19/136 , H04N19/182 , H04N19/186 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/44 , H04N19/59 , H04N19/80 , H04N19/85
CPC分类号： G06T3/4007 , H04N1/00283 , H04N7/012 , H04N7/0135 , H04N5/46
摘要： In interpolation lines having plural angles passing through an attentional pixel on a scanning line in one field to be interpolated having pixels on an upper scanning line placed over the attentional pixel and pixels on a lower scanning line placed under the attentional pixel, a horizontal spatial frequency is detected in the vicinity of the attentional pixel to be interpolated, interpolation directions are derived by plural interpolation direction decision steps on the basis of obtained spatial frequency information, and the scanning line is interpolated by selecting one direction of the plural interpolation directions.
摘要翻译： 在具有多个角度的插值线中，通过在注意像素上放置的上扫描线上的像素和在注意像素下方的下扫描线上的像素，在要内插的一个场中的扫描线上的注意像素通过注意像素， 在要插补的注意像素附近被检测到，基于获得的空间频率信息通过多个插值方向判定步骤导出插值方向，并且通过选择多个插值方向的一个方向来对扫描线进行插值。
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12.发明授权Backlit scene and people scene detecting method and apparatus and a gradation correction apparatus 失效背光场景和人物场景检测方法和装置以及灰度校正装置
公开(公告)号：US5940530A
公开(公告)日：1999-08-17
申请号：US826333
申请日：1997-03-27
CPC分类号： H04N1/6086 , G06T5/009 , H04N1/4072 , H04N1/60 , H04N1/6027 , H04N1/62 , G06T2207/10016
摘要： An apparatus for printing video images is disclosed. First the percentage of backlighting or people in the image is detected. That is, the probability of the presence of backlighting or people is detected. Then, the density gradation table is modified based on the detection result, and the presence of backlighting or the presence of people in the image is evaluated based on optical information, to select the best density gradation table from among plural density gradation tables, or to synthesize the best density gradation table. A luminance table is generated using the optimized density gradation table, and gradation correction of the image is then accomplished using that luminance table.
摘要翻译： 公开了一种用于打印视频图像的设备。 首先检测图像中的背光或人物的百分比。 也就是说，检测到背光或人的存在的概率。 然后，基于检测结果修改浓度等级表，并且基于光信息评估图像中的背光或人的存在，从多个浓度等级表中选择最佳浓度等级表，或者从 合成最佳密度梯度表。 使用优化的浓度灰度表生成亮度表，然后使用该亮度表来实现图像的灰度校正。
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公开(公告)号：US5703968A
公开(公告)日：1997-12-30
申请号：US424036
申请日：1995-04-18
摘要： A level difference of an upper pixel on an upper scanning line placed over an attentional pixel and a lower pixel on a lower scanning line placed under the attentional pixel, a level difference of the upper pixel and a lower left pixel, a level difference of the upper pixel and a lower right pixel, and a level difference of the lower pixel and an upper left pixel and a level difference of the lower pixel and an upper right pixel are derived. These level differences are compared with each other, and a line having a smallest level difference is detected and an effective interpolation line information is generated. Moreover, the level difference of the upper pixel and lower pixel is compared with the level difference of the upper right pixel and lower left pixel, and a smaller is set as a first interpolation line. In a similar manner, a second interpolation line is derived, and an ultimate interpolation line is selected from the first interpolation line, the second interpolation line and a line connecting the upper pixel and lower pixel on the basis of the effective interpolation line information.
摘要翻译： 放置在注意像素下方的上部扫描线上的上部像素和位于注意像素下方的下部扫描线上的下部像素的上部像素的电平差，上部像素和左下像素的电平差， 导出上像素和右下像素，并且导出下像素和左上像素的电平差以及下像素和右上像素的电平差。 将这些电平差进行比较，检测出具有最小电平差的线，生成有效插补线信息。 此外，将上像素和下像素的电平差与右上像素和左下像素的电平差进行比较，将较小的像素设置为第一插值线。 以类似的方式，导出第二内插线，并且根据有效内插线信息从第一内插线，第二内插线和连接上像素和下像素的线选择极限内插线。
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14.发明授权Color conversion apparatus that restricts the color reproduction range of primary color signals 失效限制原色信号的色彩再现范围的色彩转换装置
公开(公告)号：US5691779A
公开(公告)日：1997-11-25
申请号：US764184
申请日：1996-12-13
申请人： Haruo Yamashita , Tsumoru Fukushima
发明人： Haruo Yamashita , Tsumoru Fukushima
摘要： The present invention provides color conversion apparatus that prevents overflow in color reproduction, changes in hue, and the deterioration of gradation to improve image quality. The present color conversion apparatus inputs to itself luminance and color difference signals, sets a reference value not less than the maximum level of the luminance signal, converts the luminance and color difference signals into primary color signals, detects the maximum value of the primary color signals for each pixel, lowers the levels of the color difference signals if the maximum value is over the reference value to locate the amplitude of the primary color signals not greater than the reference value. Further, the present color conversion apparatus inputs to itself luminance and color difference signals, sets a reference value not greater than the minimum level of the luminance signal, converts the luminance and color difference signals into primary color signals, detects the minimum value of the primary color signals for each pixel, lowers the amplitudes of the color difference signals if the minimum value is under the reference value to locate the amplitude of the primary color signals not less than the reference value.
摘要翻译： 本发明提供了防止色彩再现中的溢出，色调变化以及灰度劣化以提高图像质量的颜色转换装置。 本发明的颜色转换装置向其自身输入亮度和色差信号，设定不低于亮度信号的最大电平的基准值，将亮度和色差信号转换为原色信号，检测原色信号的最大值 对于每个像素，如果最大值超过参考值，则降低色差信号的电平，以将原色信号的幅度定位为不大于参考值。 此外，本彩色转换装置向其自身输入亮度和色差信号，设定不大于亮度信号的最小电平的基准值，将亮度和色差信号转换为原色信号，检测初级色差信号的最小值 如果最小值低于参考值，则将每个像素的颜色信号降低，以便将原色信号的振幅定位为不小于参考值，从而降低色差信号的幅度。
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15.发明授权
公开(公告)号：US5619280A
公开(公告)日：1997-04-08
申请号：US421930
申请日：1995-04-14
申请人： Haruo Yamashita , Tsumoru Fukushima
发明人： Haruo Yamashita , Tsumoru Fukushima
摘要： The present invention provides color conversion apparatus that prevents overflow in color reproduction, changes in hue, and the deterioration of gradation to improve image quality. The present color conversion apparatus inputs to itself luminance and color difference signals, sets a reference value not less than the maximum level of the luminance signal, converts the luminance and color difference signals into primary color signals, detects the maximum value of the primary color signals for each pixel, lowers the levels of the color difference signals if the maximum value is over the reference value to locate the amplitude of the primary color signals not greater than the reference value. Further, the present color conversion apparatus inputs to itself luminance and color difference signals, sets a reference value not greater than the minimum level of the luminance signal, converts the luminance and color difference signals into primary color signals, detects the minimum value of the primary color signals for each pixel, lowers the amplitudes of the color difference signals if the minimum value is under the reference value to locate the amplitude of the primary color signals not less than the reference value.
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公开(公告)号：US5570436A
公开(公告)日：1996-10-29
申请号：US351808
申请日：1994-12-08
CPC分类号： G06T5/20
摘要： The present invention discloses a missing pixels interpolating method and an apparatus using the method. The method forms a second image from a first image by interpolating a plurality of pixels constituting the first image with a plurality of first pseudo-pixels in such a way that they neighbor to the pixels diagonally and with a plurality of second pseudo-pixels in such a way that they neighbor to the pixels vertically and horizontally. The method comprises the first process of computing values of the first pseudo-pixels using a first monotonous increasing non-linear function, and the second process of computing values of the second pseudo-pixels using a second monotonous increasing non-linear function. The primary derived functions of the first and second monotonous increasing non-linear functions are upwards convex, the domains of definition of input values thereof are consistent with the respective ranges of mapping values, and only one input value other than the limits in each domain of definition is equal to its mapping value. The only one input value and the mapping value are the central neighborhood values of the domain of definition and the range, respectively.
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公开(公告)号：US5559530A
公开(公告)日：1996-09-24
申请号：US75999
申请日：1993-06-14
CPC分类号： G09G5/24 , G06K15/02 , G06K2215/006
摘要： An image data processing apparatus for generating a font with contour lines expressed with gradations comprises a font ROM for storing a binary font data. An output port is provided for reading a target pixel with ambient pixels arranged in 3.times.3 matrix of the binary font data stored in the font ROM. A shift register produces an address data based on the binary data read from the font ROM. A look-up table has 2.sup.3.times.3 elements in which multilevel values in commensurate with the pixel patterns included the 3.times.3 matrix. One data of the multilevel data is output from the look-up table by designating one element by said address data, and is used as a gradation data of the target pixel. Thus, pixel of font can be expressed with a gradation, the jagged contour of the font is reduced.
摘要翻译： 用于生成具有用灰度表示的轮廓线的字体的图像数据处理装置包括用于存储二进制字体数据的字体ROM。 提供输出端口用于读取以字体ROM中存储的二进制字体数据的3×3矩阵排列的环境像素的目标像素。 移位寄存器基于从字体ROM读取的二进制数据产生地址数据。 查找表有23x3个元素，其中与像素图案相称的多值值包括3x3矩阵。 通过由所述地址数据指定一个元素，从查找表中输出多级数据的一个数据，并将其用作目标像素的灰度数据。 因此，字体的像素可以用渐变表示，缩小了字体的锯齿轮廓。
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公开(公告)号：US5461429A
公开(公告)日：1995-10-24
申请号：US114644
申请日：1993-08-31
摘要： A white balance coefficient setting unit 51 sets a white balance coefficient for an image signal; a white balance correction coefficient determination unit 52 determines two white balance correction coefficients to be applied to a luminance signal of the image signal in accordance with the white balance coefficient; a luminance signal operation unit 59 obtains two output signals by multiplying the luminance signal by each of the two white balance correction coefficients; a first adder 57 adds one of the two output signals and a first color difference signal of the image signal together; a second adder 58 adds the other output signal and a second color difference signal of the image signal together. Adding results of the first and the second adders 58 and 59 will be output as a white balance correction value to be applied to the two color difference signals.
摘要翻译： 白平衡系数设定单元51设定图像信号的白平衡系数; 白平衡校正系数确定单元52根据白平衡系数确定要应用于图像信号的亮度信号的两个白平衡校正系数; 亮度信号操作单元59通过将亮度信号乘以两个白平衡校正系数中的每一个来获得两个输出信号; 第一加法器57将图像信号的两个输出信号和第一色差信号中的一个相加; 第二加法器58将图像信号的另一输出信号和第二色差信号加在一起。 第一加法器58和第二加法器59的加法结果将作为白平衡校正值被输出以应用于两个色差信号。
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19.发明授权
公开(公告)号：US5430811A
公开(公告)日：1995-07-04
申请号：US996189
申请日：1992-12-23
CPC分类号： G06T5/20
摘要： The present invention discloses a missing pixels interpolating method and an apparatus using the method. The method forms a second image from a first image by interpolating a plurality of pixels constituting the first image with a plurality of first pseudo-pixels in such a way that they neighbor to the pixels diagonally and with a plurality of second pseudo-pixels in such a way that they neighbor to the pixels vertically and horizontally. The method comprises the first process of computing values of the first pseudo-pixels using a first monotonous increasing non-linear function, and the second process of computing values of the second pseudo-pixels using a second monotonous increasing non-linear function. The primary derived functions of the first and second monotonous increasing non-linear functions are upwards convex, the domains of definition of input values thereof are consistent with the respective ranges of mapping values, and only one input value other than the limits in each domain of definition is equal to its mapping value. The only one input value and the mapping value are the central neighborhood values of the domain of definition and the range, respectively.
摘要翻译： 本发明公开了一种丢失像素内插方法和使用该方法的装置。 该方法通过以多个第一伪像素对构成第一图像的多个像素进行内插而形成第二图像，使得它们以对角方式与像素相邻并且与多个第二伪像素相邻 它们垂直和水平地与像素相邻的方式。 该方法包括使用第一单调递增非线性函数来计算第一伪像素的值的第一处理，以及使用第二单调递增非线性函数来计算第二伪像素的值的第二处理。 第一和第二单调递增非线性函数的主要导出函数是向上凸的，其输入值的定义域与映射值的各个范围一致，并且只有一个输入值不同于每个域中的限制 定义等于其映射值。 唯一的一个输入值和映射值分别是定义域和范围的中心邻域值。
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公开(公告)号：US07358981B2
公开(公告)日：2008-04-15
申请号：US10528519
申请日：2003-09-18
IPC分类号： B41J2/325
CPC分类号： B41J3/407
摘要： In order to avoid a load change which occurs when seam O passes by the heads affect image information, a dyeing layer transfer head and recording heads are located in equal intervals having length P, which is obtained by equally dividing an entire circumference K of a recording intermediate belt by n (n is integer), and, given that the position of the seam of the recording intermediate belt, which does not have an end obtained by coupling two ends of a belt body of a band shape, is origin O, images are formed in portions except for portions at origin O, or at a distance of 1×P, 2×P, . . . (n−1)×P from origin O. In this way, it is possible to prevent deterioration in the image quality, such as a stripe line in an image formed by an image forming apparatus.
摘要翻译： 为了避免当接缝O通过头部影响图像信息时发生的负荷变化，染色层转印头和记录头以等长的距离P等间隔地设置，该长度P是通过将记录 中间带由n（n为整数），并且考虑到通过连接带状的带体的两端获得的不具有端部的记录中间带的接缝的位置为原点O，则图像 形成在除原点O之外的部分或者1xP，2xP的距离处。 。 。 （n-1）×P。由此，能够防止由图像形成装置形成的图像中的条纹等图像质量的劣化。
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