Question

4. Why we use add alpha channel option?​

Answer 1

Answer:

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For example, an RGB image has a channel for each color (red, green, and blue) plus a composite channel used for editing the image. Alpha channels store selections as grayscale images. You can add alpha channels to create and store masks, which let you manipulate or protect parts of an image...

Explanation:

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$\pink{By  Leeza456}$

Answer 2

Answer:

to make funny the video

Explanation:

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