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You have used the Histogram to determine that the lightest pixels in an RGB image have a luminosity level of 243. The image has no color casts or other contrast problems. You want the lightest pixels to be fully white. How should you adjust the Input and Output fields of the composite channel in the Curves dialog box?

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You have used the Histogram to determine that the lightest pixels in an RGB image have a luminosity level of 243. The image has no color casts or other contrast problems. You want the lightest pixels to be fully white. How should you adjust the Input and Output fields of the composite channel in the Curves dialog box?






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