Question

befine channels and how mask
are saved explain with the steps​

Answer 1

Answer:

Masks are stored in alpha channels. Masks and channels are grayscale images, so you can edit them like any other image with painting tools, editing tools, and filters. Areas painted black on a mask are protected, and areas painted white are editable.

Use Quick Mask mode to convert a selection to a temporary mask for easier editing. The Quick Mask appears as a colored overlay with adjustable opacity. You can edit the Quick Mask using any painting tool or modify it with a filter. Once you exit Quick Mask mode, the mask is converted back to a selection on the image.

To save a selection more permanently, you can store it as an alpha channel. The alpha channel stores the selection as an editable grayscale mask in the Channels panel. Once you store the selection as an alpha channel,

Answer 2

ᴍᴀʀᴋs ᴀʀᴇ sᴛᴏʀᴇᴅ ɪɴ ᴀʟᴘʜᴀ ᴄʜᴀɴɴᴇʟs ᴍᴀʀᴋ ᴀɴᴅ ᴄʜᴀɴɴᴇʟs ᴀʀᴇ ɢʀᴀʏsᴄʟᴇs ɪᴍᴀɢᴇ.sᴏ, ʏᴏᴜ ᴄᴀɴ ᴇᴅɪᴛ ᴛʜᴇᴍ ʟɪᴋᴇ ᴀɴʏ ᴏᴛʜᴇʀ ɪᴍᴀɢᴇ ᴡɪᴛʜ ᴘᴀɪɴᴛɪɴɢ ᴛᴏᴏʟs , ᴇᴅɪᴛɪɴɢ ᴛᴏᴏʟs, ᴀɴᴅ ғɪʟᴛᴇʀs . ᴀʀᴇᴀs ᴘᴀɪɴᴛᴇᴅ ʙʟᴀᴄᴋ ᴏɴ ᴍᴀsᴋ ᴀʀᴇ ᴘʀᴏᴛᴇᴄᴛᴇᴅ ᴀɴᴅ ᴀʀᴇᴀs ᴘᴀɪɴᴛᴇᴅ ᴡʜɪᴛᴇ ᴀʀᴇ ᴇᴅɪᴄᴛᴀʙʟᴇ.