This blog is divided in sections for ease of use.
Using channels to make an accurate selection
First things first. Here is the image that we will be making a selection on.
Because this illustration of a Lion is so complex and detailed, I want to make sure that I capture all those details in my selection. There are a bunch of methods to make a selection in Photoshop, and the technique I am going to show is just going to add on top of those methods. Lets get right into it...
To get to channels click on Window and select channel as shown below
Or scroll to the channels tab as shown below
So now in the channels dialog box click on any of the colors (Red, Green, Blue). **It doesn't make any difference with the color channel you select, as we are only using channels to make a selection** I have selected the RED channel to make my selection. Now follow as below:
Adding colors to selection
1. Go to the adjustment layer button and select Solid Color as shownand select the color you want as shownI selected Blue and here is how the image looksAnd that is how you make a selection using channels and fill the colors in a really complex image. Go ahead and save your image as a jpeg or png or any other format you want.