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31.发明授权Image processing apparatus, image processing method, and program for processing black characters at high resolution 有权图像处理装置，图像处理方法以及用于以高分辨率处理黑色字符的程序公开(公告)号：US09135540B2
公开(公告)日：2015-09-15
申请号：US14033701
申请日：2013-09-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Akitoshi Yamada , Ryosuke Iguchi , Junichi Nakagawa , Mitsuhiro Ono
CPC classification number: G06K15/1876 , G06F3/1211 , G06F3/122 , G06F3/1244 , G06K15/1853 , H04N1/6072 , H04N1/648
Abstract: An image processing apparatus includes an acquiring unit configured to acquire first image data representing gradation of a black character image, and second image data having a resolution lower than that of the first image data and representing gradation of a color image; a first generating unit configured to generate first dot data in accordance with a gradation value of each pixel in the first image data acquired by the acquiring unit; and a second generating unit configured to assign a number of dots to each pixel in the second image data, the number being greater than the maximum number of dots to be assigned by the first generating unit to each pixel in the first image data, and generating dot data for forming an image having an image attribute, in accordance with a gradation value of each pixel in the second image data acquired by the acquiring unit.
Abstract translation: 一种图像处理装置，包括：获取单元，被配置为获取表示黑色字符图像的灰度的第一图像数据;以及第二图像数据，其分辨率低于所述第一图像数据的分辨率，并且表示彩色图像的灰度; 第一生成单元，被配置为根据由所述获取单元获取的所述第一图像数据中的每个像素的灰度值生成第一点数据; 以及第二生成单元，被配置为向第二图像数据中的每个像素分配多个点，该数量大于由第一生成单元分配给第一图像数据中的每个像素的最大点数，并且生成 根据获取单元获取的第二图像数据中的每个像素的灰度值，形成具有图像属性的图像的点数据。
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32.发明授权Generating and using blue noise dither patterns with high value thresholds positioned for a high dot concentration ratio 有权产生和使用具有高点阈值的蓝色噪声抖动图案，定位为高点浓度比公开(公告)号：US09092720B2
公开(公告)日：2015-07-28
申请号：US14495742
申请日：2014-09-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Junichi Nakagawa , Akitoshi Yamada , Nobutaka Miyake , Tomokazu Ishikawa , Shinjiro Hori , Fumitaka Goto , Ryosuke Iguchi , Hidetsugu Kagawa , Kouta Murasawa , Hiromitsu Akiba , Senichi Saito
CPC classification number: B41J2/04593 , B41J2/155 , G06K2215/0094 , G06K2215/101
Abstract: Provided is a dither pattern generation method so that a dot arrangement having excellent dispersibility can be obtained in low-gradation areas for single colors and for mixed colors. The dither pattern generation method generates dot patterns for low-gradation areas having threshold values 1 to S so that high dispersibility is obtained in a cyan dot pattern and a magenta dot pattern, and so that in a combined dot pattern made by combining these dot patterns there are no overlapping pixels. The dither pattern generation method then sets threshold values for a cyan dither pattern and a magenta dither pattern based on these generated dot patterns.
Abstract translation: 提供了一种抖动图案生成方法，使得在单色和混合颜色的低等级区域中可以获得具有优异分散性的点排列。 抖动图案生成方法生成具有阈值1〜S的低灰度区域的点图案，从而在青色点图案和品红色点图案中获得高分散性，并且以组合这些点图案 没有重叠的像素。 然后，抖动图案生成方法基于这些生成的点图案设置青色抖动图案和品红色抖动图案的阈值。
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公开(公告)号：US20150092240A1
公开(公告)日：2015-04-02
申请号：US14495736
申请日：2014-09-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobutaka Miyake , Junichi Nakagawa , Akitoshi Yamada , Tomokazu Ishikawa , Shinjiro Hori , Fumitaka Goto , Ryosuke Iguchi , Hidetsugu Kagawa , Kouta Murasawa , Hiromitsu Akiba , Senichi Saito
CPC classification number: H04N1/40 , H04N1/4051
Abstract: Provided is a quantization processing method using dither patterns that make it possible to obtain a dot array having excellent dispersibility even in the case of a single color or mixed color inks. For this purpose, first and second dither patterns are prepared in order to respectively quantize multivalued data for a first ink to different pieces of binary data, respectively. Also, third and fourth dither patterns are prepared in order to respectively quantize multivalued data for a second ink to different pieces of binary data. Further, on the basis of a combination of the multivalued data on the first ink and the multivalued data on the second ink, a quantization unit for the first ink, and a quantization unit for the second ink are determined.
Abstract translation: 提供了一种使用抖动图案的量化处理方法，即使在单色或混合彩色墨水的情况下也可以获得具有优异分散性的点阵列。 为此，准备第一和第二抖动图案以便分别将第一墨水的多值数据量化到不同的二进制数据片段。 此外，准备第三和第四抖动图案以便将第二墨水的多值数据分别量化到不同的二进制数据片段。 此外，基于第一墨水上的多值数据和第二墨水上的多值数据的组合，确定用于第一墨水的量化单元和用于第二墨水的量化单元。
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公开(公告)号：US20150002902A1
公开(公告)日：2015-01-01
申请号：US14314978
申请日：2014-06-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiromitsu Akiba , Nobutaka Miyake , Shinjiro Hori , Akitoshi Yamada , Fumitaka Goto , Ryosuke Iguchi , Hidetsugu Kagawa , Tomokazu Ishikawa , Kouta Murasawa , Junichi Nakagawa , Senichi Saito
CPC classification number: G06K15/1814 , G06K15/102 , G06K15/1815 , G06K15/1852
Abstract: Image ink data is generated which represents the absence of ejection of ink corresponding to pixels for which text ink data represents the ejection of ink.
Abstract translation: 产生图像墨水数据，其表示对应于文本墨水数据表示墨水喷出的像素的墨水的不喷射。
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35.发明授权公开(公告)号：US08896884B2
公开(公告)日：2014-11-25
申请号：US14076608
申请日：2013-11-11
Applicant: Canon Kabushiki Kaisha
Inventor： Akitoshi Yamada , Tomokazu Ishikawa , Senichi Saito , Fumitaka Goto , Nobutaka Miyake , Mitsuhiro Ono , Ryosuke Iguchi , Hidetsugu Kagawa , Junichi Nakagawa
CPC classification number: G06K15/02 , H04N1/4015
Abstract: As viewed for each processing unit in head shading (HS) processing, a processing unit width is more than one pixel, so that a threshold arrangement corresponding to a target quality of an image intended by a dither matrix is kept while a possibility of avoiding zero dots from being generated can be enhanced. Moreover, the threshold arrangement is kept while a possibility of generating the same number of dots in processing units can be enhanced. Consequently, the threshold arrangement corresponding to a predetermined target quality of an image intended by a dither matrix is kept while it is possible to reduce occurrence of uneven density caused by the HS processing. Thus, it is possible to prevent the threshold arrangement from being limited by the HS processing according to the degree of the reduction.
Abstract translation: 如在头部阴影（HS）处理中为每个处理单元所看到的，处理单元宽度大于一个像素，从而保持与由抖动矩阵预期的图像的目标质量相对应的阈值排列，同时避免零 可以增强生成的点。 此外，保持阈值布置，同时可以提高在处理单元中产生相同数量的点的可能性。 因此，保持对应于由抖动矩阵预期的图像的预定目标质量的阈值排列，同时可以减少由HS处理引起的不均匀浓度的发生。 因此，可以防止阈值布置受到根据减少程度的HS处理的限制。
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Patent Agency Ranking
36.发明授权公开(公告)号：US08896883B2
公开(公告)日：2014-11-25
申请号：US14076622
申请日：2013-11-11
Applicant: Canon Kabushiki Kaisha
Inventor： Fumitaka Goto , Akitoshi Yamada , Tomokazu Ishikawa , Senichi Saito , Nobutaka Miyake , Mitsuhiro Ono , Ryosuke Iguchi , Hidetsugu Kagawa , Junichi Nakagawa
Abstract: When an input image is shifted by 640 pixels from a test pattern with reference to the position of a nozzle, the remainder is obtained by dividing 640 pixels by pixels of the dither matrix in an x direction. For example, when the size of the dither matrix in the x direction is 256 pixels, the dither matrix is shifted by 128 pixels in a direction reverse to the x direction. In this manner, the phase of the dither matrix at the time of the quantization during test pattern printing matches the phase of the dither matrix at the time of the quantization during input image printing. Consequently, unevenness of the dither matrix at a position N becomes the same in both of the test pattern and the input image. The HS correction to density unevenness caused by the unevenness of the dither matrix becomes suitable for the input image.
Abstract translation: 当输入图像相对于喷嘴的位置从测试图案偏移了640个像素时，通过在x方向上划分抖动矩阵的640个像素来获得剩余部分。 例如，当x方向上的抖动矩阵的大小为256像素时，抖动矩阵沿与x方向相反的方向偏移128像素。 以这种方式，在测试图案打印期间的量化时的抖动矩阵的相位匹配输入图像打印期间的量化时的抖动矩阵的相位。 因此，在位置N处的抖动矩阵的不均匀性在测试图案和输入图像两者中都是相同的。 由抖动矩阵的不均匀度引起的对浓度不均匀性的HS校正变得适合于输入图像。
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公开(公告)号：US20140218753A1
公开(公告)日：2014-08-07
申请号：US14167417
申请日：2014-01-29
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kouta Murasawa , Akitoshi Yamada , Nobutaka Miyake , Tomokazu Ishikawa , Shinjiro Hori , Fumitaka Goto , Ryosuke Iguchi , Hidetsugu Kagawa , Hiromitsu Akiba , Senichi Saito , Junichi Nakagawa
IPC: H04N1/40
CPC classification number: H04N1/40068 , H04N1/58 , H04N1/642
Abstract: In low-resolution processing (reduction processing) in which input image data is separated into character print data and image print data to generate print data of lower resolution than that of the input image data, if a plurality of pixels is simply reduction-processed to one pixel, color of a color image surrounding a character may change. In an image processing method, calculation for performing reduction processing so that the plurality of pixels in the input image data corresponds to one pixel in the print data is performed as follows. A ratio of using a pixel value of a character attribute pixel in the calculation is set to 0, or set smaller than a ratio of using a pixel value of an image attribute pixel. As a result, a change in the color of the color image surrounding the character can be prevented.
Abstract translation: 在将输入图像数据分离为字符打印数据和图像打印数据以生成比输入图像数据的分辨率低的打印数据的低分辨率处理（缩小处理）中，如果简单地将多个像素进行缩小处理， 一个像素，围绕字符的彩色图像的颜色可能会改变。 在图像处理方法中，如下执行用于执行缩小处理使得输入图像数据中的多个像素对应于打印数据中的一个像素的计算。 在计算中使用字符属性像素的像素值的比率被设置为0，或者设置为小于使用图像属性像素的像素值的比率。 结果，可以防止围绕字符的彩色图像的颜色的变化。
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公开(公告)号：US20140016141A1
公开(公告)日：2014-01-16
申请号：US14033701
申请日：2013-09-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Akitoshi Yamada , Ryosuke Iguchi , Junichi Nakagawa , Mitsuhiro Ono
IPC: G06K15/02
CPC classification number: G06K15/1876 , G06F3/1211 , G06F3/122 , G06F3/1244 , G06K15/1853 , H04N1/6072 , H04N1/648
Abstract: An image processing apparatus includes an acquiring unit configured to acquire first image data representing gradation of a black character image, and second image data having a resolution lower than that of the first image data and representing gradation of a color image; a first generating unit configured to generate first dot data in accordance with a gradation value of each pixel in the first image data acquired by the acquiring unit; and a second generating unit configured to assign a number of dots to each pixel in the second image data, the number being greater than the maximum number of dots to be assigned by the first generating unit to each pixel in the first image data, and generating dot data for forming an image having an image attribute, in accordance with a gradation value of each pixel in the second image data acquired by the acquiring unit.
Abstract translation: 一种图像处理装置，包括：获取单元，被配置为获取表示黑色字符图像的灰度的第一图像数据;以及第二图像数据，其分辨率低于所述第一图像数据的分辨率，并且表示彩色图像的灰度; 第一生成单元，被配置为根据由所述获取单元获取的所述第一图像数据中的每个像素的灰度值生成第一点数据; 以及第二生成单元，被配置为向第二图像数据中的每个像素分配多个点，该数量大于由第一生成单元分配给第一图像数据中的每个像素的最大点数，并且生成 根据获取单元获取的第二图像数据中的每个像素的灰度值，形成具有图像属性的图像的点数据。
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公开(公告)号：US10469701B2
公开(公告)日：2019-11-05
申请号：US15933645
申请日：2018-03-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryosuke Iguchi , Nobutaka Miyake , Yuki Ishida , Wei Song , Naoki Sumi
Abstract: An image processing method is provided for acquiring additional information from image information obtained by shooting a printed product on which the additional information is multiplexed by at least one of a plurality of different multiplexing methods, the method comprising: attempting decoding of the additional information from the image information by a plurality of different decoding methods corresponding to the plurality of different multiplexing methods; and outputting, by a unit, the additional information successfully decoded.
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公开(公告)号：US10460494B2
公开(公告)日：2019-10-29
申请号：US15832339
申请日：2017-12-05
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroyasu Kunieda , Masaaki Obayashi , Shinjiro Hori , Ryosuke Iguchi
Abstract: A control method for an image processing apparatus that generates a layout image by arranging an image in a template includes specifying, as a designated object, at least one object of a plurality of objects including a first object and a second object according to a combination of a plurality of setting values including a setting value regarding the first object and a setting value regarding the second object based on the received input, selecting image data from a plurality of pieces of image data, and outputting a layout image in which an image represented by the selected image data is arranged in a template, wherein image data representing an image that contains an object specified as the designated object is selected in preference to image data representing an image that does not contain an object specified as the designated object from the plurality of pieces of image data.
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