This week’s assignment is to work on Pretty Sister’s green screen, with a focus on hair placement
I started by looking at the whole shot as per the previous process. there was nothing green in the foreground and the only thing that needed attention was the treatment of the hair. So I relaxed the range in the edge key to get more detail.
Observe the hair detail and alpha
Colour readjustment: because I thought it was strange to have warm highlights on a green background, I added colorcorrect and saturation to correct the colour deviation in the hair part after matching the colour with grade
After the process I compared the results given by the teacher and found that although the hair was natural, some of the detail was missing compared to the teacher’s video. So I repeated the comparison, at first comparing the difference between the key and the final effect and adjusting some of the values. Then I found that the alpha mask shape matched the final effect.
This left two possibilities.
- the edges of my colours were too dark and blended into the background
- the keylight in the toning section took away too much detail
I then adjusted the keylight processing and grade in the agreeing frame in comparison to the toning, and found that the alpha shape was exactly right, it was the content that was not filling the masked section completely. So I reworked the blackpoint and whitepoint values of the keyligh to achieve a result that was not too different from the original video except for the colours.