diff options
Diffstat (limited to 'src/identity_transfer_function.cc')
| -rw-r--r-- | src/identity_transfer_function.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/identity_transfer_function.cc b/src/identity_transfer_function.cc index c888bd3e..b6f03d07 100644 --- a/src/identity_transfer_function.cc +++ b/src/identity_transfer_function.cc @@ -49,12 +49,13 @@ using namespace dcp; vector<double> -IdentityTransferFunction::make_lut (int bit_depth, bool) const +IdentityTransferFunction::make_lut (double from, double to, int bit_depth, bool) const { int const bit_length = int(std::pow(2.0f, bit_depth)); auto lut = vector<double>(bit_length); for (int i = 0; i < bit_length; ++i) { - lut[i] = double(i) / (bit_length - 1); + double x = double(i) / (bit_length - 1); + lut[i] = (x * (to - from)) + from; } return lut; |