This skill should be used when the user asks "is this real HDR", "check HDR metadata", "fake HDR", "is this Dolby Vision legitimate", "HDR vs SDR", "check HDR peak brightness", or wants to verify whether HDR content is genuine or inverse tonemapped from SDR.
Analyze HDR metadata and detect fake/invalid HDR content. HDR is not automatically better than SDR—many "HDR" releases are fake.
Legitimate HDR requires:
Inverse tonemapped SDR:
HDR container, SDR content:
Suspicious Dolby Vision:
Key fields to check in Video section:
HDR format : SMPTE ST 2086 / SMPTE ST 2094...
Color primaries : BT.2020
Transfer characteristics : PQ (SMPTE 2084) or HLG
Matrix coefficients : BT.2020 non-constant
Mastering display color prim : BT.2020 or DCI-P3
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
MaxCLL : 1000 cd/m2
MaxFALL : 400 cd/m2
Run MediaInfo and look for:
If any are missing/wrong: Not HDR, or broken HDR.
Look for mastering display info:
Red flags:
Research whether the content was officially released in HDR:
If no official HDR exists: The "HDR" version is almost certainly fake.
On an HDR display:
MediaInfo shows:
HDR format: SMPTE ST 2086
MediaInfo shows:
HDR format: SMPTE ST 2094 App 4
MediaInfo shows:
HDR format: Dolby Vision, dvhe.05.06
Dolby Vision Profiles:
| Check | Expected for Real HDR | Fake HDR Indicator |
|---|---|---|
| MaxCLL | >100 nits | ≤100 nits |
| Transfer | PQ or HLG | BT.709 tagged as HDR |
| Bit depth | 10+ bit | 8 bit |
| Official release | Yes | No HDR release exists |
| Visual brightness | Extended range used | Looks like SDR |
Older movies "remastered" in HDR:
Anime in HDR:
Random Dolby Vision releases:
When to use HDR version:
When to use SDR version:
${CLAUDE_PLUGIN_ROOT}/references/hdr.md - Detailed HDR metadata guide${CLAUDE_PLUGIN_ROOT}/references/color-space.md - Color space fundamentals