Adjust color balance

[lars-reimann]

Is your feature request related to a problem?

Adjusting the color balance of an image is another common operation.

Desired solution

• New method adjust_color_balance on Image
• factor parameter to adjust the strength of the change
• Use ImageEnhance.Color internally
• Warn if factor is 1 since this leaves the image unchanged
• Raise error if factor is below 0

Possible alternatives (optional)

No response

Screenshots (optional)

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Additional Context (optional)

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[lars-reimann]

🎉 This issue has been resolved in version 0.15.0 🎉

The release is available on:

• v0.15.0
• GitHub release

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