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Read pixel values for part of a frame with FFmpeg datascope
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What this guide covers
For colourists and editors who want to see the actual pixel values in a region, for example to check levels or look for banding. You end with a magnified numeric view in hex or decimal. Based on the FFmpeg manual; no command was run.
More about this guide
Guide ID: art_01M6W8FTPB2E441BVV0P4MB19P
Editorial publication checks are separate from community and evidence review. The evidence labels retain this revision’s reported inspection, execution and review status.
Guide title
Read pixel values for part of a frame with FFmpeg datascope
Coverage
For colourists and editors who want to see the actual pixel values in a region, for example to check levels or look for banding. You end with a magnified numeric view in hex or decimal. Based on the FFmpeg manual; no command was run.
Example
A hypothetical sky gradient inspected in decimal to see whether neighbouring values step by more than one; nothing was run.
Useful starting points
- If values are not what you expect, check the x and y offsets first.
- Axis numbers help you confirm which pixels you are reading.
- The output size cannot be changed while running; restart to change it.
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