Remove the light pollution remained in an image
2012-11-18 um 09-51-31

0a. The problem is visible. There is an ungly gradient at the left down side of the photo. It is caused by the light pollution.

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0b. There is solution for that problem! You can eliminate the impact of the light pollution by using this guide. Read how to eliminate the gradients in your photos.

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0. This is the photo having the heavy light pollution gradient at the down left side

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1. Duplicate the original photo

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2. Duplicate the original photo

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3. The photo has been duplicated

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4. Load both photos in Photoshop

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5. Wip out the signal i.e. the nebula. Do not wipe out the gradient. Use the copy stamp tool

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6-Use Gaussian Blur in PS

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7. The Mask is ready

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8-Click on Bild_Bildberechnungen. i.e. Photo_Calculations

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9. Select the menu Bild_ Bildberechnungen (clalculations) and subtract the gauss mask from your photo

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10. This is the result Left: The clean photo AFTER the processing. Right: The polluted photo BEFORE the processing.