The Old Film: Technocolor filter applies a stylized color transformation inspired by historical Technicolor™ film processes. It modifies color relationships rather than performing technical color correction or restoration.
The filter works by shifting colors along two opposing color axes, altering the balance between complementary hues to produce a saturated, vintage film look.
Parameters
Green → Red (−300 to 300)
Controls the balance between the green and red color channels.
- Negative values shift the image toward green
- Positive values shift the image toward red
This adjustment affects:
- Skin tones
- Vegetation
- Warm vs. cool color balance in midtones
Higher absolute values exaggerate the separation between green and red hues, contributing to a stronger stylized effect.
Yellow → Blue (−300 to 300)
Controls the balance between yellow and blue hues, corresponding broadly to a warm–cool axis.
- Negative values shift the image toward yellow
- Positive values shift the image toward blue
This adjustment affects:
- Overall warmth or coolness
- Highlights and skies
- Perceived color temperature
As with the Green → Red control, larger values produce more pronounced color shifts.
How the controls work together
The two sliders operate on independent color axes:
- Green ↔ Red adjusts chromatic balance along one axis
- Yellow ↔ Blue adjusts chromatic balance along a second, perpendicular axis
Together, they allow selective exaggeration or suppression of specific color relationships rather than a uniform saturation change.
Visual characteristics
Typical results include:
- Increased color separation
- Stronger, more vivid hues
- Reduced color neutrality
- A distinctly stylized, cinematic appearance
The effect is not intended to preserve accurate color reproduction.
Recommended use cases
- Creative grading to evoke a vintage or classic film aesthetic
- Stylized color looks where realism is not required
- Situations where increased color contrast between hues is desired
Limitations
- Not a color correction or white balance tool
- May significantly alter skin tones and natural color relationships
- High values can produce unrealistic or extreme color shifts