bitflow/video-color-filter-lut

This LUT-based color filter is ideal for color grading user-generated AI videos or short videos shot on smartphones.

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Video Color Filter LUT

Professional Cinematic Color Grading for AI & Standard Videos.

Apply instant color looks to AI-generated or standard videos with 21 free LUT presets. Transform raw or flat AI-generated clips into high-end cinematic masterpieces. Video Color Filter LUT provides a robust pipeline to apply 3D LUTs (.cube) with precise pre-processing controls to ensure the “look” always hits the mark, even on standard Rec.709 footage.

🚀 Key Features

  • 21+ Cinematic Presets: From Hollywood Teal & Orange to Silent Hill Horror.
  • Pre-LUT Enhancement: Built-in Contrast, Saturation, and Gamma tuning to “prime” your video before the LUT is applied—essential for fixing weak Rec.709 inputs.
  • Smart Blending: Adjustable Intensity (0.0 - 1.0) to mix the graded look with the original footage for a natural finish.
  • AI-Video Optimized: Specifically tuned for the “flat” output of models like Kling, WanVideo, Luma, and Runway.
  • Audio-Safe: Maintains original audio sync and quality (AAC 192k) or provides clean muted output.

Input Parameters

Parameter Type Default Range Description
video file (required) — Input video file to apply color grading
lut_name enum (required) — Select from 21+ curated .cube presets.
intensity float 1.0 0.0 – 1.0 LUT blending strength (0.0 = original, 1.0 = full LUT)
contrast float 0.75 0.5 – 3.0 Pre-LUT contrast (1.0 = neutral, <1.0 = softer, >1.0 = punchy)
saturation float 0.9 0.0 – 3.0 Pre-LUT saturation (1.0 = neutral, <1.0 = muted, >1.0 = vivid)
gamma float 0.85 0.3 – 3.0 Pre-LUT gamma (1.0 = neutral, <1.0 = brighter, >1.0 = darker)

Output

Type Format Details
file MP4 H.264 High@4.1, AAC 192k (when audio present), faststart

Available LUT Styles

LUT Name Feel
blue-green-dark Dark cyan / teal tone
blue-horror Eerie blue horror atmosphere
brown-dark Deep, heavy brown tone
coffee Warm coffee brown
colorize Adds a little saturation enhancement salt
cyan-cool Cold, crisp cyan tone
dawn-blue Early dawn blue light
drop-green Green suppression, magenta shift
golden Golden tone
golden-warm Warm golden glow
hongkong-teal Hong Kong noir teal
clear-bright Adds some brightness & contrast salt
low-light-urban Low-light urban night scene
necromancer-dark Night, dawn look, undead vibe
odd-blue Unusual blue tint
only-red Red channel emphasis
orange-cinema Orange cinematic tone
orange-green Orange & green color emphasis
vivid-color Enhance colors
warm Soft warm tone
worldwar-vintage WWII-era vintage film look

Tips

If the colors aren’t “popping” enough, use the Pre-LUT Pumping technique:

  • Adjust saturation value to 1.3 and contrast to 1.2 before the LUT hits.

  • This forces the LUT to process more vivid data, resulting in a much richer final image.

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