In a particular scene, there is a dancer performing by the water under light rain. I lowered the highlights and gave the scene a desaturated cyan look that muted most of other colors. The result was dark, eerie and moody… which was exactly what I was looking for. It worked great on every shots except for one, and I didn’t want to scratch off the look because one shot could handle it as much as the other ones.
Graded screenshots from the scene:
Ungraded screenshot of the problematic shot:
My first reflex was to lower the highlights, but I knew it would bring out the glitch barely visible in the sky. If you look closely, you can see a weird pink/magenta shape near the dancer’s head and in the top right corner. I’m not a camera expert and would have to research to understand exactly why this kind of aberrations happen, but I have seen it a couple of times with Red footage and managed to fix it almost every time. Maybe the values in this area were too bright and the sensor had some kind of malfunction. Who knows… but what is done is done and the colorist has to fix it. When you don’t push your footage too far in the grading room, you can usually get away and not worry too much about it. But in my case, I had to drastically change the image in order to match it to the other shots of the scene.
Here’s what happened when I started playing around with the footage:
This pink haze is out of this world and I absolutely do not want to have this in the sky.
The solution is quite simple. Use the keyer to select the glitch and change its color so that it matches its surroundings. In my case it wasn’t too hard to pull a decent key since the glitch had a much higher saturation level than the rest of the image. It’s also important to blur your matte just enough so that you don’t see the color patch.
Here’s the matte:
And here’s the fix:
If you ended up on this page because you had a similar issue, I hope this quick tip fixed your problem or at least corrected a reasonable part of it! Keying is a very powerful tool and I use it almost everyday. Experiment without boundaries and try to find how it can enhance your own images. Don’t forget to do a quality check afterwards though… the keyer sometimes look amazing on one frame, but can look horrible during playback!