AXIAL CHROMATIC ABERRATION CORRECTION
    1.
    发明申请
    AXIAL CHROMATIC ABERRATION CORRECTION 有权
    轴向色差校正

    公开(公告)号:US20130002908A1

    公开(公告)日:2013-01-03

    申请号:US13172717

    申请日:2011-06-29

    IPC分类号: H04N9/64

    CPC分类号: H04N9/045

    摘要: A 9 pixel-by-9 pixel working window slides over an input Bayer image. For each such window, a demosaicing operation is performed. For each such window, corrective processing is performed relative to that window to produce relative differences for that window. For each such window for which relative differences have been produced, those relative differences are regulated. For each window, a maximum is found for that window's regulated relative differences; in one embodiment of the invention, this maximum is used to select which channel is sharp. For each window, the colors in that window are corrected based on the relative difference-based maximum found for that window. For each window, edge oversharpening is softened in order to avoid artifacts in the output image. The result is an output image in which axial chromatic aberrations have been corrected.

    摘要翻译: 9像素×9像素工作窗口在输入拜耳图像上滑动。 对于每个这样的窗口,执行去马赛克操作。 对于每个这样的窗口,相对于该窗口执行校正处理以产生该窗口的相对差异。 对于已经产生相对差异的每个这样的窗口,这些相对差异是有规定的。 对于每个窗口,找到该窗口的受限相对差异的最大值; 在本发明的一个实施例中,该最大值用于选择哪个通道是锋利的。 对于每个窗口,该窗口中的颜色将根据该窗口的相对差异最大值进行更正。 对于每个窗口,边缘过敏软化,以避免输出图像中的伪影。 结果是已经校正轴向色差的输出图像。

    Axial chromatic aberration correction
    2.
    发明授权
    Axial chromatic aberration correction 有权
    轴向色差校正

    公开(公告)号:US08953058B2

    公开(公告)日:2015-02-10

    申请号:US13172717

    申请日:2011-06-29

    CPC分类号: H04N9/045

    摘要: A 9 pixel-by-9 pixel working window slides over an input Bayer image. For each such window, a demosaicing operation is performed. For each such window, corrective processing is performed relative to that window to produce relative differences for that window. For each such window for which relative differences have been produced, those relative differences are regulated. For each window, a maximum is found for that window's regulated relative differences; in one embodiment of the invention, this maximum is used to select which channel is sharp. For each window, the colors in that window are corrected based on the relative difference-based maximum found for that window. For each window, edge oversharpening is softened in order to avoid artifacts in the output image. The result is an output image in which axial chromatic aberrations have been corrected.

    摘要翻译: 9像素×9像素工作窗口在输入拜耳图像上滑动。 对于每个这样的窗口,执行去马赛克操作。 对于每个这样的窗口,相对于该窗口执行校正处理以产生该窗口的相对差异。 对于已经产生相对差异的每个这样的窗口,这些相对差异是有规定的。 对于每个窗口,找到该窗口的受限相对差异的最大值; 在本发明的一个实施例中,该最大值用于选择哪个通道是锋利的。 对于每个窗口,该窗口中的颜色将根据该窗口的相对差异最大值进行更正。 对于每个窗口,边缘过敏软化,以避免输出图像中的伪影。 结果是已经校正轴向色差的输出图像。