-
1.发明授权Image processing method for correcting a target pixel using emphasizing and smoothing components 失效使用强调和平滑分量校正目标像素的图像处理方法
公开(公告)号：US5390264A
公开(公告)日：1995-02-14
申请号：US987220
申请日：1992-12-08
CPC分类号： G06T5/20
摘要： In an image processing method for correcting a target pixel using emphasizing and smoothing components, a microcomputer stores the input image signal into an image memory, and generates the enhancement coefficient k data in the enhancement coefficient table memory using a function with an input/output characteristic whereby the output is a simple increasing value when the input is approximately zero. Using a first difference, which is the difference of the target pixel signal minus the signal of the reference pixel positioned on a first direction, the enhancement coefficient k is obtained by referencing the enhancement coefficient table, and the target pixel is enhanced proportionally to the enhancement coefficient k and the first difference. The target pixel is also gradated or smoothed in proportion to the enhancement coefficient k and the second difference, which is the target pixel signal minus the average of the signals of the second and third reference pixels, which are the reference pixels in the directions perpendicular to the first direction and on opposite sides of the target pixel. The target pixel signal is corrected by repeating this process for each of the reference pixels positioned on the four directions surrounding the target pixel, and the corrected image signal is stored to the image memory. The enhanced image signal is obtained by repeating this process for all input image signals.
摘要翻译： 在使用强调和平滑分量校正目标像素的图像处理方法中，微计算机将输入图像信号存储到图像存储器中，并且使用具有输入/输出特性的函数在增强系数表存储器中生成增强系数k数据 从而当输入大约为零时，输出是简单的增加值。 使用作为目标像素信号减去位于第一方向上的参考像素的信号的第一差异，通过参考增强系数表来获得增强系数k，并且与增强成比例地增加目标像素 系数k和第一个差值。 与目标像素信号减去第二和第三参考像素的信号的平均值成比例的增强系数k和第二差分，目标像素也是渐变或平滑的，它们是垂直于 目标像素的第一方向和相对两侧。 通过对位于围绕目标像素的四个方向上的每个参考像素重复该处理来校正目标像素信号，并将校正后的图像信号存储到图像存储器中。 通过对所有输入图像信号重复该处理来获得增强图像信号。
-
公开(公告)号：US5347599A
公开(公告)日：1994-09-13
申请号：US897260
申请日：1992-06-11
摘要： An interpolation apparatus for preventing image deterioration caused by correlation detection errors. The apparatus comprises a calculation means for obtaining the arithmetic mean of pixels on the scan lines above and below the line being interpolated, a correlation value detection means for obtaining the correlation value of the pixels, a setting means for outputting the reference value of correlation, a comparison means for outputting a binary signal set, a determination means for determining the interpolation line, and a selection means for selecting and passing the output of the calculation means.
摘要翻译： 一种用于防止由相关检测误差引起的图像劣化的内插装置。 该装置包括：计算装置，用于获得被内插线上方和下方的扫描线上的像素的算术平均值;相关值检测装置，用于获得像素的相关值;设置装置，用于输出相关参考值; 用于输出二进制信号组的比较装置，用于确定内插线的确定装置，以及用于选择和传递计算装置的输出的选择装置。
-
3.发明授权Interpolation method and apparatus by correlation detection using fuzzy inference 失效利用模糊推理相关检测的插值方法和装置
公开(公告)号：US5513281A
公开(公告)日：1996-04-30
申请号：US422607
申请日：1995-04-13
IPC分类号： H04N7/015 , G06F9/44 , G06F17/17 , G06T1/20 , H04N7/00 , H04N7/01 , G06F17/15 , G06F17/00 , G06K9/64 , G06G7/00
CPC分类号： G06F17/175 , Y10S706/90
摘要： Interpolation method and apparatus for interpolating pixels using levels of pixels surrounding a pixel to be interpolated is disclosed whereina level difference between two pixels on an interpolation line is calculated for all interpolation lines, likelihoods of correlation are calculated from the level differences obtained using a membership function,an interpolation direction is determined based on the likelihoods of correlation and directions of the interpolation lines and an interpolation value for the pixel to be interpolated is calculated based on levels of two pixels on the interpolation line having the interpolation direction determined.
摘要翻译： 公开了使用内插像素周围的像素水平来内插像素的内插方法和装置，其中针对所有内插线计算内插线上的两个像素之间的电平差，相关性的可能性是根据使用成员 基于相关性的可能性和内插线的方向来确定内插方向，并且基于所确定的具有内插方向的内插线上的两个像素的电平来计算要插值的像素的内插值。
-
公开(公告)号：US6101271A
公开(公告)日：2000-08-08
申请号：US821794
申请日：1997-03-21
IPC分类号： G03F3/00 , H04N1/40 , H04N1/407 , H04N1/46 , H04N1/48 , H04N9/64 , H04N9/69 , G06K9/00 , G03F3/08
CPC分类号： H04N9/69
摘要： The gradation correction device includes a luminance signal convertor to generate a luminance signal from the input R, G, B signals, a correction coefficient calculator which calculates the ratio to the luminance signal of the luminance signal after gamma correction to the predetermined gradation characteristics, and a multipliers to multiply the output from the correction coefficient calculator by each of the R, G, and B input signals. When the gradation correction is applied, effective brightness adjustment can be applied with no change in hue and saturation and without exceeding the dynamic range of a device.
摘要翻译： 灰度校正装置包括：亮度信号转换器，用于从输入R，G，B信号产生亮度信号;校正系数计算器，其计算与伽马校正之后的亮度信号的亮度信号与预定灰度特性的比率;以及 用于将来自校正系数计算器的输出乘以R，G和B输入信号中的每一个的乘法器。 当应用灰度校正时，可以在色调和饱和度没有变化并且不超过设备的动态范围的情况下应用有效的亮度调节。
-
公开(公告)号：US5237625A
公开(公告)日：1993-08-17
申请号：US978459
申请日：1992-11-19
IPC分类号： H04N1/409
CPC分类号： H04N1/4092
摘要： An image contour enhancing device for enhancing contours in images in an image data formed by a plurality of pixel data includes differentiation circuits for differentiating the image data to produce first and second order differentiation signals. The first order differentiation signal represents an image data portion corresponding to front and rear edges of the contour, and the second order differentiation signal represents first and second half portions in each of the front and rear edges of the contour. The second order differentiation is used for a time modulation signal applied to a time modulation circuit to modulate in the time domain the image data in response to the time modulation signal such that the first half portion in the front and rear edges of the contour is delayed, and the second half portion in the front and rear edges of the contour is advanced.
摘要翻译： 用于增强由多个像素数据形成的图像数据中的图像中的轮廓的图像轮廓增强装置包括用于微分图像数据以产生第一和第二阶微分信号的微分电路。 第一阶微分信号表示对应于轮廓的前边缘和后边缘的图像数据部分，并且二阶微分信号表示轮廓的前边缘和后边缘中的每一个中的第一和第二半部分。 第二阶微分用于应用于时间调制电路的时间调制信号，以响应于时间调制信号在时域中调制图像数据，使得轮廓的前后边缘中的前半部分被延迟 并且轮廓的前后边缘中的后半部分前进。
-
公开(公告)号：US5808653A
公开(公告)日：1998-09-15
申请号：US835019
申请日：1997-04-08
CPC分类号： B41J2/3551 , B41J2/3555 , B41J2/365
摘要： In the disclosed thermal gradation printing apparatus, heat elements in a line-type thermal head are divided into a plurality of groups, and an accumulated heat amount in the substrate of the thermal head for each group is estimated based on the pulse width data applied to each heat element considering the influences by heat accumulations in the main-scanning direction and in the sub-scanning direction. Based on the group division estimated accumulated heat amounts and the temperature of the body portion of the thermal head, a correction value for the pulse width data to be applied to each heat element. Moreover, the correction value is applied to the pulse width data for each heat element, so as to output the corrected pulse width data to the thermal head.
摘要翻译： 在公开的热分级打印装置中，线型热敏头中的热元件被分成多组，并且基于应用于每一组的脉冲宽度数据来估计每组的热敏头的基板中的累积热量 考虑到在主扫描方向和副扫描方向上的积聚的影响的每个热元件。 基于分组估计累积热量和热敏头的主体部分的温度，对应于每个加热元件的脉冲宽度数据的校正值。 此外，将校正值应用于每个加热元件的脉冲宽度数据，以便将校正的脉冲宽度数据输出到热敏头。
-
7.发明授权Color image forming method and an apparatus employed therefor, and a correction factor determining method 失效彩色图像形成方法及其使用的装置，以及校正因子确定方法
公开(公告)号：US5422738A
公开(公告)日：1995-06-06
申请号：US229053
申请日：1994-04-18
CPC分类号： H04N1/6019
摘要： A color image forming method and an apparatus to be used for executing the method are provided which are capable of effecting more faithful color reproduction with respect to a target color, and also, a color correction factor determining method to be used in the above method and apparatus. The color image forming apparatus to which the color image forming method is applied is arranged to subject three primary color luminance signals (R, G, B) to linear matrix calculation by a luminance matrix device for conversion into second luminance signals (R', G', B') to correct deviation of wavelength of the spectral absorbing characteristic of the ink, and to subject each color of the second luminance signals (R', G', B') to complementary color conversion into three primary color density signals (D.sub.R, D.sub.G, D.sub.B) by a complementary color converting device, and further, to subject the three primary color density signals (D.sub.R, D.sub.G, D.sub.B) to color correcting calculation by a color correcting device for conversion into ink density signals (C, M, Y), so as to correct color turbidity due to the unnecessary component of the ink. Additionally, the correction factor determining method determines the luminance matrix factor used for the luminance matrix calculation and the color correction factor used for the color correcting calculation by minimizing conditions of a color difference to be perceived by man.
摘要翻译： 提供一种用于执行该方法的彩色图像形成方法和装置，其能够对目标颜色进行更忠实的颜色再现，以及在上述方法中使用的颜色校正因子确定方法和 仪器。 应用彩色图像形成方法的彩色图像形成装置被布置成将三原色亮度信号（R，G，B）进行线性矩阵计算，由亮度矩阵装置转换为第二亮度信号（R'，G '，B'）来校正墨的光谱吸收特性的波长偏差，并将第二亮度信号（R'，G'，B'）的每种颜色互补色变换成三原色浓度信号 DR，DG，DB），并且还将通过颜色校正装置对三原色浓度信号（DR，DG，DB）进行颜色校正计算，以转换为墨密度信号（C，M ，Y），以便校正由于墨水的不必要成分引起的颜色混浊。 此外，校正因子确定方法通过最小化人感觉到的色差的条件来确定用于亮度矩阵计算的亮度矩阵因子和用于颜色校正计算的颜色校正因子。
-
公开(公告)号：US5661575A
公开(公告)日：1997-08-26
申请号：US366028
申请日：1994-12-29
CPC分类号： H04N9/69
摘要： The gradation correction device includes a luminance signal convertor to generate a luminance signal from the input R, G, B signals, a correction coefficient calculator which calculates the ratio to the luminance signal of the luminance signal after gamma correction to the predetermined gradation characteristics, and a multipliers to multiply the output from the correction coefficient calculator by each of the R, G, and B input signals. When the gradation correction is applied, effective brightness adjustment can be applied with no change in hue and saturation and without exceeding the dynamic range of a device.
摘要翻译： 灰度校正装置包括：亮度信号转换器，用于从输入R，G，B信号产生亮度信号;校正系数计算器，其计算与伽马校正之后的亮度信号的亮度信号与预定灰度特性的比率;以及 用于将来自校正系数计算器的输出乘以R，G和B输入信号中的每一个的乘法器。 当应用灰度校正时，可以在色调和饱和度没有变化并且不超过设备的动态范围的情况下应用有效的亮度调节。
-
公开(公告)号：US5644351A
公开(公告)日：1997-07-01
申请号：US160032
申请日：1993-11-30
CPC分类号： B41J2/3551 , B41J2/3555 , B41J2/365
摘要： In the disclosed thermal gradation printing apparatus, heat elements in a line-type thermal head are divided into a plurality of groups, and an accumulated heat amount in the substrate of the thermal head for each group is estimated based on the pulse width data applied to each heat element considering the influences by heat accumulations in the main-scanning direction and in the sub-scanning direction. Based on the group division estimated accumulated heat amounts and the temperature of the body portion of the thermal head, a correction value for the pulse width data to be applied to each heat element. Moreover, the correction value is applied to the pulse width data for each heat element, so as to output the corrected pulse width data to the thermal head.
摘要翻译： 在公开的热分级打印装置中，线型热敏头中的热元件被分成多组，并且基于应用于每一组的脉冲宽度数据来估计每组的热敏头的基板中的累积热量 考虑到在主扫描方向和副扫描方向上的积聚的影响的每个热元件。 基于分组估计累积热量和热敏头的主体部分的温度，对应于每个加热元件的脉冲宽度数据的校正值。 此外，将校正值应用于每个加热元件的脉冲宽度数据，以便将校正的脉冲宽度数据输出到热敏头。
-
公开(公告)号：US5349373A
公开(公告)日：1994-09-20
申请号：US898442
申请日：1992-06-15
CPC分类号： B41J2/3555 , B41J2/36
摘要： A thermal head drive unit comprises electric power supply means for supplying electric power to heat-generating resistor elements arranged in a line in a thermal head. Head drive means is provided for electrically driving the heat-generating resistor elements in a lump by supplying electric power continuously variably in time to the heat-generating resistor elements depending on input gradation data. Head drive control means controls the head drive means in such a manner that, in a one-line recording time period composed of a power supply time during which electric power is supplied to the heat-generating resistor elements and an intermission time during which no electric power is supplied to the heat-generating resistor elements in disregard of the gradation data, the intermission time occupies a part not more than approximately 40% in the one-line recording time period.
摘要翻译： 热敏头驱动单元包括用于向热敏头中的线中排列的发热电阻元件供电的电源装置。 提供头驱动装置，用于通过根据输入的灰度数据向发热电阻器元件提供时间上连续可变的电力来一体地电驱动发热电阻元件。 磁头驱动控制装置以这样的方式控制磁头驱动装置，使得在由供电时间组成的单行记录时间段中，电力供应时间供给发热电阻元件，而间歇时间不包含电 电力被提供给发热电阻元件，不考虑灰度数据，间歇时间在单行记录时间段内占据不大于约40％的部分。
-
-
-
-
-
-
-
-
-
搜索结果
106 条记录 (耗时 0.018 秒)
