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calculateHDRStats(for:)

Given a CVPixelBuffer, use the receiving Core Image context to calculate its HDR statistics (content headroom and content average light level) and then update the buffers’s attachments to store the values.

Declaration

func calculateHDRStats(for buffer: CVPixelBuffer)

Parameters

  • buffer:

    A mutable CVPixelBuffer for which to calculate and attach statistics.

Discussion

If the CVPixelBuffer has a Clean Aperture rectangle then only pixels within that rectangle are considered.