Back to Adaptive Vision Library website
You are here: Start » Function Reference » Histogram Metrics » HistogramIntersection
HistogramIntersection
Calculates normalized histogram intersection norm.
Syntax
C++
C#
void avl::HistogramIntersection ( const avl::Histogram& inHistogram1, const avl::Histogram& inHistogram2, float& outHistIntersection )
Parameters
| Name | Type | Default | Description | |
|---|---|---|---|---|
 |
inHistogram1 | const Histogram& | First input histogram | |
|
inHistogram2 | const Histogram& | Second input histogram | |
 |
outHistIntersection | float& |
Description
The operation computes the normalized histogram intersection defined as: \[\frac{ {\sum\limits_{j = 1}^n {\min \left( {inHistogram{1_j},inHistogram{2_j} } \right)} } }{ {\sum\limits_{j = 1}^n {inHistogram{2_j} } } }\]
Remarks
- Data sets for the input histograms cannot be empty, otherwise an error with appropriate description occurs,
- inHistogram1 and inHistogram2 must have the same BinSizes, otherwise an error with appropriate description occurs.
Errors
| Error type | Description |
|---|---|
| DomainError | Input histogram formats are not the same in HistogramIntersection. |
| DomainError | Negative value in a histogram in HistogramIntersection. |
| DomainError | Empty histogram on input in HistogramIntersection. |
