Install Adobe Photoshop in your computer. For this purpose, insert installation disk in the computer disk drive and run the installation file. Click “Next” to start the installation process, and click “I Accept”, when the installation window shows you “Terms and Agreement”.
Now click Browse to select the path where you want to save the program installation files. Click “OK”, and then click “Next”, to continue. Click “Finish” when the installation is complete.
Open Adobe Photoshop and select “Open” from the “File” menu. A new dialog box will appear on your screen, asking you about the location of the file which you want to edit. Select the picture and click “Open”.
You will now see the picture appearing in Photoshop window. Go to the “Tools” panel and select the “Pen” tool, as it is a great tool to get finer results, compared to the regular selection tools. You should make sure that the tool is set to "Create Path” mode, as you do not want to fill the image.
Now click at any point, on the edge of the hair, and start outlining. Make sure you use as many clicks as required to create a perfect and smooth selection. You may need to make around 100 clicks, to outline hair. It may vary, depending on the length and the hair style.
When you return to the point where you started, click the starting point, in order to close the selection. You can now right-click the path and select the "Make Selection” option. Click “OK” when a pop-up window appears on your screen.
You are now ready to isolate the hair from the body and use it as a separate layer. Make necessary changes to it and apply it back on the body.