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(A) Array 9 initially has an unusually large number of array and single outliers in the lower-left region. (B) The lower-left corner pixel position (white dot) appears to be off by about one feature and therefore leads to incorrect gridding and averaging of many features in the lower-left region. This is hard to detect by visual inspection of the original image. (C) After manually setting the correct corner pixel position, the array is salvaged.
