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— BT.2111 Color Bar PQ Narrow: Use these bars if your HDR timeline is using a format with a PQ gamma curve (i.e., DolbyVision or HDR10). This is most commonly used for video streaming services and Blu-ray discs.
— EBU Color Bar: A 1.77:1 aspect ratio set of color bars for PAL-using countries.
— Four Color Gradient: A gradient that blends four different colors at each corner of the frame. You can adjust the Center X and Center Y parameters to move the center at which all four colors blend together, and you can change the four colors that appear at each corner using corresponding color parameters.
— Grey Scale: A simple grayscale ramp from black to white.
— SMPTE Color Bar: An updated 1.77:1 aspect ratio set of color bars for NTSC-using countries.
— Solid Color: A simple fullscreen color generator. A Color parameter lets you choose what color this generator outputs.
— Window: A simple white-on-black shape generator, defaulting to a white rectangle against a black background.
— YCbCr Ramp: A gradient designed to test the Y’CbCr signal.
ITU-R BT.2111-1 Color Bar Generators
DaVinci Resolve now includes a ITU-R BT.2111-1 specification Color Bar Generator for HDR video. These are the color bars to use when calibrating, analyzing, or mastering a Rec. 2100 (BT.2100) HDR signal.
These new color bars have saturation levels set at 100% at the top, and 75% in the middle section. They also contain Rec. 709 (BT.709) color bars in the lower corners for compatibility with HD SDR signals. Commonly referenced levels are indicated on the image below. The full color bar specification can be found on the ITU’s web site: https://www.itu.int/rec/R-REC-BT.2111/en.
The BT.2111-1 color bars and some of the more commonly used levels
