IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    14.
    发明申请
    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 有权
    图像处理装置和图像处理方法

    公开(公告)号:US20100321737A1

    公开(公告)日:2010-12-23

    申请号:US12813837

    申请日:2010-06-11

    IPC分类号: H04N1/60 H04N1/40

    CPC分类号: G06K15/107

    摘要: When multi-pass printing is performed, the dot overlap rate (ratio of the number of dots that overlap and are to be printed in the same pixel area by the plurality of relative movements with respect to the total number of dots to be printed in a pixel area by the plurality of relative movements) in pixel areas having medium-density where density unevenness caused by density fluctuation easily stands out is made higher than the dot overlap rate in pixel areas having low-density and pixel areas having high-density. By doing so density unevenness caused by density fluctuation is suppressed. In addition, the dot overlap rate in pixel areas having low-density and pixel areas having high-density is low, so it is possible to reduce graininess in low-density areas and suppress a decrease in density in high-density areas.

    摘要翻译: 当进行多遍打印时,点重叠率(通过多个相对移动相对于要印刷的总点数在同一像素区域中重叠并且要打印的点数的比率 在具有中密度的像素区域中,由密度波动引起的浓度不均匀性容易突出的像素区域的像素区域高于具有高密度的低密度像素区域和像素区域的像素区域中的点重叠率。 通过这样做,抑制了由密度波动引起的密度不均匀。 此外,具有低密度的像素区域和具有高密度的像素区域的点重叠率低,因此可以降低低密度区域的颗粒度并抑制高密度区域的密度降低。

    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    19.
    发明申请
    IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 失效
    图像处理装置和图像处理方法

    公开(公告)号:US20110141524A1

    公开(公告)日:2011-06-16

    申请号:US12955444

    申请日:2010-11-29

    IPC分类号: H04N1/40

    CPC分类号: H04N1/40025

    摘要: When dividing multi-valued data and generating data for two-pass multi-pass printing, in addition to divided multi-valued data that are divided for each of the two passes, divided multi-valued data that is common to both of the two passes is generated. Moreover, quantized data of that common multi-valued data is reflected onto the quantized data for each pass. Furthermore, when generating quantized data, division ratios that are used when generating the common data by the multi-valued data division described above are set according to the image characteristics (whether or not the area is flesh color) of the multi-valued data. Thereby, it is possible to perform high-quality printing regardless of the image characteristics by taking a suitable balance between suppressing density unevenness and suppressing graininess.

    摘要翻译: 当分割多值数据并产生用于双程多遍打印的数据时,除了对于两次通过中的每一个进行划分的划分的多值数据之外,对于两个通过两个通道都是共同的分割多值数据 被生成。 此外,该通用多值数据的量化数据反映在每次通过的量化数据上。 此外,当生成量化数据时,根据多值数据的图像特性(区域是肉色)来设置在通过上述多值数据划分生成公共数据时使用的分频比。 由此,无论图像特性如何,通过在抑制浓度不均匀性和抑制颗粒度之间取得适当的平衡,可以进行高质量的打印。

    Image processing apparatus and image processing method
    20.
    发明授权
    Image processing apparatus and image processing method 有权
    图像处理装置和图像处理方法

    公开(公告)号:US08610955B2

    公开(公告)日:2013-12-17

    申请号:US12955344

    申请日:2010-11-29

    IPC分类号: H04N1/40 G06F15/00

    CPC分类号: H04N1/52 G06K15/107

    摘要: In image processing, it is possible to suitably reduce density unevenness and graininess according to the ink used in printing. More specifically, when dividing multi-valued data and generating data for 2-pass multi-pass printing, in addition to divided multi-valued data for each of the two passes, divided multi-valued data that is common to the two passes is also generated. Moreover, quantized data of that common multi-valued data is reflected on the quantized data for each of the passes. Furthermore, when generating the quantized data, the division ratios used when generating the common data using the aforementioned multi-valued data division are set according to the colors of ink used in printing. By doing so, it becomes possible to suitably reduce density unevenness and graininess according to the colors used in printing.

    摘要翻译: 在图像处理中,可以根据印刷中使用的油墨适当地减小浓度不均匀性和颗粒性。 更具体地说,当分割多值数据并产生用于2遍多遍打印的数据时,除了两次通过中的每一个的分割多值数据之外,还可以将两次通过的共同的分割多值数据 生成。 此外,该通用多值数据的量化数据反映在每个通过的量化数据上。 此外,当生成量化数据时,根据在打印中使用的墨的颜色来设定使用上述多值数据分割生成公共数据时使用的分割比。 通过这样做,可以根据印刷中使用的颜色适当地减小浓度不均匀性和颗粒性。