novideo_srgb is described as 'This tool uses an undocumented NVIDIA API, supported on Fermi and later, to convert colors before sending them to a wide gamut monitor to effectively clamp it to sRGB (alternatively: Display P3, Adobe RGB or BT.2020), based on the chromaticities provided in its EDID' and is an app. There are five alternatives to novideo_srgb for Windows, Mac and Linux. The best novideo_srgb alternative is DisplayCAL, which is both free and Open Source. Other great apps like novideo_srgb are Calibrize, Atrise Lutcurve, ColorHCFR and SuperCal Display Calibrator.