Fig. 1

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Normalized intensity images in linear scale obtained before (top row) and after (bottom row) the on-sky DH correction. Left column: Raw image with bad pixels removed. Right column: Same as for the left column, but high-pass filtered using a Gaussian kernel with a standard deviation of 0.57λ0/D. The images are normalized by the maximum of the off-axis PSF, and multiplied by 105 and 106 for the left and right images, respectively. The corrected region is encircled in green.
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