#include <modified_gamma_transfer_function.h>
Inheritance diagram for dcp::ModifiedGammaTransferFunction:
Public Member Functions | |
| ModifiedGammaTransferFunction (double power, double threshold, double A, double B) | |
| double | power () const |
| double | threshold () const |
| double | A () const |
| double | B () const |
| bool | about_equal (std::shared_ptr< const TransferFunction >, double epsilon) const override |
 Public Member Functions inherited from dcp::TransferFunction | |
| TransferFunction (TransferFunction const &)=delete | |
| TransferFunction & | operator= (TransferFunction const &)=delete |
| double const * | lut (int bit_depth, bool inverse) const |
Protected Member Functions | |
| double * | make_lut (int bit_depth, bool inverse) const override |
Private Attributes | |
| double | _power |
| double | _threshold |
| double | _A |
| double | _B |
Detailed Description
A transfer function which for an input x gives a linear output y where
y = x / B for x <= threshold y = ((x + A) / (1 + A))^power for x > threshold
The reverse transform is
x = y * B for y <= threshold / B x = (1 + A) * y ^ (1 / power) - A for y > threshold / B
Definition at line 56 of file modified_gamma_transfer_function.h.
Member Function Documentation
◆ make_lut()
|
overrideprotectedvirtual |
Make a LUT and return an array allocated by new
Implements dcp::TransferFunction.
Definition at line 61 of file modified_gamma_transfer_function.cc.
The documentation for this class was generated from the following files:
