Problem
Burned-in captions are color-graded as part of the picture, making later accessibility extraction impossible without rebuilding the transcript separately.
Solution
Root Cause / Diagnostic:
Baking open captions into footage prior to applying adjustment layers or grading LUTs irreversibly flattens text pixels into video color channels. Color grade pushes (contrast curves, saturation shifts, color tints) alter text legibility and permanently fuse text into the background raster, preventing optical character recognition (OCR) or clean separation for accessibility exports.
Actionable Fix:
1. Reorder timeline hierarchy by placing all subtitle and motion graphic layers above color grading adjustment layers and output LUT nodes.
2. Always generate and archive a standalone sidecar caption file (.srt or .vtt) before burning text into final delivery renders.
3. Export clean, textless video masters alongside burned-in derivatives to preserve raw assets for future localization and accessibility re-encoding.
Pro Tip:
Use dedicated subtitle tracks or Essential Graphics layers placed at the top of the video track stack to guarantee that grade changes never degrade text luminance.
Baking open captions into footage prior to applying adjustment layers or grading LUTs irreversibly flattens text pixels into video color channels. Color grade pushes (contrast curves, saturation shifts, color tints) alter text legibility and permanently fuse text into the background raster, preventing optical character recognition (OCR) or clean separation for accessibility exports.
Actionable Fix:
1. Reorder timeline hierarchy by placing all subtitle and motion graphic layers above color grading adjustment layers and output LUT nodes.
2. Always generate and archive a standalone sidecar caption file (.srt or .vtt) before burning text into final delivery renders.
3. Export clean, textless video masters alongside burned-in derivatives to preserve raw assets for future localization and accessibility re-encoding.
Pro Tip:
Use dedicated subtitle tracks or Essential Graphics layers placed at the top of the video track stack to guarantee that grade changes never degrade text luminance.