Examples of applying our method on a synthetic image of subset 5 derived from Rome/PSPT observation taken on 21/08/2000: panel a: contrast image derived after processing of the synthetic image without compensation for the vignetting; panel b: relative error of the calibrated contrast images. Also shown are the values of the rms, mean, mean absolute, and maximum relative differences by comparing image regions within 0.98 R. The colour bars apply to the images below them.
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