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What is increase and decrease of a shadow

Dear Student ,
Your question is not clear though we are here trying to give you some explanation .

During the day, the angle between the Earths surface and the sun changes. Since the Sun appears to rise in the East and set in the West, it has to move an angle of 180° hence changing its position and angle in relation to the Earths surface throughout the day.  So as the angle increases from 0° to 90°, the shadows length would decrease until the Sun was directly above an object. Similarly, the opposite occurs from 90° to 180°.



Hope this helps you .
Regards
 

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The Shadow/Highlight command is one method for correcting photos with silhouetted images due to strong backlighting or correcting subjects that have been slightly washed out because they were too close to the camera flash. The adjustment can also be used for brightening areas of shadow in an otherwise well‑lit image. The Shadow/Highlight command does not simply lighten or darken an image; it lightens or darkens based on the surrounding pixels (local neighborhood) in the shadows or highlights. For this reason, there are separate controls of the shadows and the highlights. The defaults are set to fix images with backlighting problems.

The Shadow/Highlight command also has a Midtone Contrast slider, Black Clip option, and White Clip option for adjusting the overall contrast of the image, and a Color Correction slider for adjusting saturation.

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