syntax = "proto2"; package ltpb; message SensorCharacterization { required float black_level = 1; required float white_level = 2; optional float cliff_slope = 3; repeated VstNoiseModel vst_model = 4; message VstNoiseModel { required uint32 gain = 1; required float threshold = 2; required float scale = 3; required VstModel red = 4; message VstModel { required float a = 1; required float b = 2; } required VstModel green = 5; required VstModel blue = 6; optional VstModel panchromatic = 7; } }