Color correction was used to alter, enhance, correct the color of films by chemical tech.
Color grading in digital era plays more important role than ever before. Especially after the film Sin City, post color manipulation more likely becomes a way of expressing certain moods.
These screen grabs shown below are from my fictional project this semester.
The original shot:
This clip is shot in Carlton garden on log mode of BlackMagic pocket camera, and looks pretty flat.
It’s clear to see that the graded clip is bluer, higher tensity of contrast, and higher saturation. This look can express the cooler feeling, and it is often used in drama, horror (but more bluer) films.
I used 3-color corrector to grande the clip:
• Blue the lift (shadow) and gamma (mid-tone)
• orange the gain (highlight) to neutralize the skin tone
• Increase color saturation
To correctly adjust this shot, it is very essential to use scope, for monitoring the color and luma digitally.
The chart left is wave scope of the original clip, and right is the wave of graded clip.
1023 is pure white and 0 is pure black. The graded clip’s range is wider than the original one, representing that the contrast is higher.
Another way to grade color is applying LUT (look up table), which can statistically make the color space of digital camera to that of film, to get film look.
Also the different approaches can be used for different purposes. In next example:
The original clip is shown below:
This time I want to get a stylized music video look. So, I qualified red, yellow and orangeI, then increased saturation and contrast, but desaturated other colors to black & white.
To simulate the shot below to filmic look, I did some research how filmic color works. I learnt that, more grains and washed out color are in the highlight area, but more colorful and less grans in mid-tone. So I used curve tool to lock up highlight area, and decrease the saturation a little, then increase saturation in mid-tone and shadow. Finally I got the look below: