Invention Grant
US08797418B2 Methods and apparatuses for addressing chromatic aberrations and purple fringing 有权
用于解决色差和紫色边缘的方法和装置

Methods and apparatuses for addressing chromatic aberrations and purple fringing
Abstract:
Methods and systems for detecting and correcting chromatic aberration and purple fringing are disclosed. Chromatic aberration can be addressed by separating an image into color planes and then adjusting these to reduce chromatic aberration by using a specific calibration image (calibration chart) as an empirical method to calibrate the image acquisition device. Purple fringing can be corrected by initially addressing color aberration resulting from the lateral chromatic aberration (LCA). The LCA is first removed and then the correction is extended to purple fringing. A discovery is relied upon that the purple fringing is created in the direction of the chromatic aberration and is more pronounced in the direction of the chromatic aberration.
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