16#include <libcamera/base/span.h>
30 std::enable_if_t<std::is_invocable_v<Transform, uint32_t>> * =
nullptr>
33 cumulative_.resize(data.size() + 1);
35 for (
const auto &[i, value] : utils::enumerate(data))
36 cumulative_[i + 1] = cumulative_[i] + transform(value);
39 size_t bins()
const {
return cumulative_.size() - 1; }
40 uint64_t
total()
const {
return cumulative_[cumulative_.size() - 1]; }
42 double quantile(
double q, uint32_t first = 0, uint32_t last = UINT_MAX)
const;
46 std::vector<uint64_t> cumulative_;
The base class for creating histograms.
Definition histogram.h:24
Histogram()
Construct an empty Histogram.
Definition histogram.h:26
size_t bins() const
Retrieve the number of bins currently used by the Histogram.
Definition histogram.h:39
double quantile(double q, uint32_t first=0, uint32_t last=UINT_MAX) const
Return the (fractional) bin of the point through the histogram.
Definition histogram.cpp:105
uint64_t cumulativeFrequency(double bin) const
Cumulative frequency up to a (fractional) point in a bin.
Definition histogram.cpp:82
uint64_t total() const
Retrieve the total number of values in the data set.
Definition histogram.h:40
Histogram(Span< const uint32_t > data, Transform transform)
Create a cumulative histogram.
Definition histogram.h:31
double interQuantileMean(double lowQuantile, double hiQuantile) const
Calculate the mean between two quantiles.
Definition histogram.cpp:142
Top-level libcamera namespace.
Definition backtrace.h:17
Transform
Enum to represent a 2D plane transform.
Definition transform.h:16
Miscellaneous utility functions.