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    • 6. 发明申请
    • IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20110043838A1
    • 2011-02-24
    • US12917206
    • 2010-11-01
    • Akitoshi YamadaMitsuhiro OnoRie KajiharaTomokazu IshikawaYuji KonnoYutaka KanoHitoshi NishikoriNorihiro Kawatoko
    • Akitoshi YamadaMitsuhiro OnoRie KajiharaTomokazu IshikawaYuji KonnoYutaka KanoHitoshi NishikoriNorihiro Kawatoko
    • H04N1/60
    • B41J2/2132G06K15/107H04N1/40025
    • When recording is performed in a pixel region by M (M is an integer equal to or larger than 2) passes with N (N is an integer equal to or larger than 2) recording element groups, density variation due to a deviation between recording positions of dots that are recorded by different passes is suppressed while a load of data processing is decreased.First, multivalued image data (24-1 to 24-2) corresponding to the M passes is generated from input image data, and the multivalued image data corresponding to the M passes is quantized to generate quantized data (26-1 to 26-2) corresponding to the M passes. Then, the quantized data corresponding to the M passes is divided into quantized data being complements of each other and corresponding to the N recording element groups. Accordingly, the quantized data (28-1 to 28-4) corresponding to the M passes for the N recording element groups is obtained. With this configuration, the density variation due to the deviation between the recording positions by the M passes can be suppressed. Also, since the number of pieces of data subjected to the quantization is small, the load of the quantization can be decreased.
    • 当通过M(M是等于或大于2的整数)在像素区域中进行记录时,通过N(N是等于或大于2的整数)记录元素组,由记录位置之间的偏差引起的浓度变化 在数据处理负荷减小的同时抑制不同通过记录的点。 首先,从输入图像数据生成与M遍对应的多值图像数据(24-1〜24-2),对与M遍对应的多值图像数据进行量化,生成量化数据(26-1〜26-2 )。 然后,对应于M遍的量化数据被划分成彼此互补的量化数据,并对应于N个记录元素组。 因此,获得对应于N个记录元件组的M遍的量化数据(28-1至28-4)。 利用这种配置,可以抑制由记录位置之间由M次通过的偏差引起的浓度变化。 此外,由于经过量化的数据数量少,所以可以减少量化的负担。
    • 7. 发明授权
    • Image processing device and image processing method
    • 图像处理装置及图像处理方法
    • US08508797B2
    • 2013-08-13
    • US12917206
    • 2010-11-01
    • Akitoshi YamadaMitsuhiro OnoRie KajiharaTomokazu IshikawaYuji KonnoYutaka KanoHitoshi NishikoriNorihiro Kawatoko
    • Akitoshi YamadaMitsuhiro OnoRie KajiharaTomokazu IshikawaYuji KonnoYutaka KanoHitoshi NishikoriNorihiro Kawatoko
    • H04N1/60
    • B41J2/2132G06K15/107H04N1/40025
    • When recording is performed in a pixel region by M (M is an integer equal to or larger than 2) passes with N (N is an integer equal to or larger than 2) recording element groups, density variation due to a deviation between recording positions of dots that are recorded by different passes is suppressed while a load of data processing is decreased.First, multivalued image data (24-1 to 24-2) corresponding to the M passes is generated from input image data, and the multivalued image data corresponding to the M passes is quantized to generate quantized data (26-1 to 26-2) corresponding to the M passes. Then, the quantized data corresponding to the M passes is divided into quantized data being complements of each other and corresponding to the N recording element groups. Accordingly, the quantized data (28-1 to 28-4) corresponding to the M passes for the N recording element groups is obtained. With this configuration, the density variation due to the deviation between the recording positions by the M passes can be suppressed. Also, since the number of pieces of data subjected to the quantization is small, the load of the quantization can be decreased.
    • 当通过M(M是等于或大于2的整数)在像素区域中进行记录时,通过N(N是等于或大于2的整数)记录元素组,由记录位置之间的偏差引起的浓度变化 在数据处理负荷减小的同时抑制不同通过记录的点。 首先,从输入图像数据生成与M遍对应的多值图像数据(24-1〜24-2),对与M遍对应的多值图像数据进行量化,生成量化数据(26-1〜26-2 )。 然后,对应于M遍的量化数据被划分成彼此互补的量化数据,并对应于N个记录元素组。 因此,获得对应于N个记录元件组的M遍的量化数据(28-1至28-4)。 利用这种配置,可以抑制由记录位置之间由M次通过的偏差引起的浓度变化。 此外,由于经过量化的数据数量少,所以可以减少量化的负担。