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ippStsHistoNofLevelsErr
Histogram functions need at least two levels so there is a usable interval boundary. With fewer levels, bins cannot describe a range of input values.
When this status is returned, the data buffer may be fine. The failure is in the histogram specification: levels, bins or range arrays do not define a meaningful partition.
Check these details
- The number of histogram levels, not only the number of output bins.
- Whether the level array contains the required boundary values.
- Per-channel level counts for multi-channel histograms.
Intel IPP Error Reporting · Intel IPP Image Processing Reference
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