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0016B - Constant Colour Frames
published
0016B v2.0
Item image
CONSTANT COLOUR FRAMES
Full Frame Single Colour
Video Processing Errors
Duration, Area
Coloured Flash (incl. Black)
https://qc.ebu.io/items/0016B/versions/2-0-0/
Check
Report
Summary
EBU QC Id
0016B
Name
Constant Colour Frames
Status
published
Category
objective
Lead editor
Eric Carson
Aliases
black frames coloured frames flash frames monochrome frames single colour frames colored frames single color frames constant color frames
Tags
video
Versions
Version Status Edition date Saved by Note
Details
Definition
Used in Checks, the system shall verify if the video contains frames which have no active video and identify full-sized or at least major areas of single coloured frames. Optionally the system may report the segments where single coloured frames appear. The minimum temporal duration and spatial area that count as a detection are set by the Minimum Duration and Minimum Area input parameters.

Used in Reports, the system reports the segments where single coloured frames appear and which colour they have.
References
Examples

  • Input: "Minimum Duration" = 3 frames
    Input: "Minimum Area" = 90.00%
    Input: "Colour To Check" = #000000
    Input: "Colour Tolerance" = 10.5%
    Output: "Check Result" = true

    Remark: Used as a Check. CheckResult = true means that no coloured frames (incl. black) were found in the analysed video.

  • Input: "Minimum Duration" = 3 frames
    Input: "Minimum Area" = 90.00 %
    Output: "Coloured Frames Segment" from 10:00:00;00 to 10:00:05;00
    --> "Colour Detected" = #000000
    --> "Minimum Area" = 91.00 %
    --> "Maximum Area" = 100.00 %
    Output: "Coloured Frames Segment" from 10:04:01;00 to 10:04:01;06
    --> "Colour Detected" = #DD1100
    --> "Minimum Area" = 92.00 %
    --> "Maximum Area" = 95.00 %

    Remark: Used as a Report. The system reports the video segments that are single colour frames.

Input parameters
Name Default value Description Data model name Unit Locator
Output parameters
Name Alias Description Data model name Unit Locator
Test material
Title Version Download
Remarks
Remarks
Coloured frames can be caused by software errors in the production cycle (e.g. within GOP-based file structures, SDI failure, splicing errors, and unlinked content in NLEs).

Note there is also an EBU QC Test Item that checks for expected Black Frames, such as 'commercial black': #0272B (Latest version) .
User discussions
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