What does Intel IPP status -19 (ippStsThreshNegLevelErr) mean?

 
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ippStsMoment00ZeroErr ippStsThresholdErr

ippStsThreshNegLevelErr

This status is tied to thresholding primitives where the threshold level is constrained to a non-negative domain. It is more specific than a general range error.

It often appears when signed intermediate values are reused as threshold levels, or when an application converts a normalized floating-point control into an integer threshold incorrectly.

Diagnostic focus

  • Inspect the level value after scaling, clamping and type conversion.
  • Check whether the primitive expects absolute levels rather than signed deltas.
  • For multi-channel calls, verify all channel thresholds, not just the first one.

IPP image processing reference


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