Concept
Channels can be the good start to create grayscale
output. Its easy to use and it can be adjusted further using more
advanced commands. Here we will select specific channels according
to our requirements.
1. Open an image to use Channels for grayscale output.

2. Windows > Channels
3. Or Switch to Channels Palette and select any channel.

4. With this image you will get better output with
Green Channel.
5. With Red, its too light and with Blue its too dark.
6. Create New Grayscale document and drag Green Channel
on it.
7. Delete Gray channel from the channel palette of
the new file.
8. Image > Mode
Switch to Grayscale from Multichannel
9. You can trim the file if the original file is bigger
than the dragged image.

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