A chromatic aberration correction method suitable for video stitching
A chromatic aberration correction and video splicing technology, which is applied in image data processing, instruments, calculations, etc., can solve the problems of large calculations, coarse correction granularity, and fine correction granularity for solving fine-grained correction parameters, so as to reduce the amount of data processing, Guarantee the correction effect and improve the effect of update lag
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[0034] In order to facilitate the understanding of the present invention, the basic principle of chromatic aberration correction is briefly described below:
[0035] Generally, chromatic aberration correction can be expressed by the following formula:
[0036] I'(x,y)=gI(x,y) formula (1)
[0037] Among them, I represents the image before correction, g represents the correction coefficient, and I′ represents the image after correction. If I is a color image, each color channel is corrected with different g; if g is a constant, it corresponds to global correction. If As the pixel coordinates (x, y) change, it can be considered as local correction.
[0038] The calculation of the correction coefficient can be regarded as solving an optimization problem, so that the corresponding pixels of the corrected image in the overlapping area have the minimum square error, and its objective function can be expressed by the following formula [2] :
[0039]
[0040] Among them, n is the...
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