The Histogram scope shows value distribution across the selected signal domain. Use it for exposure distribution, channel clipping checks, and mask-range selection.
Modes
Mode
Description
RGB
Combined RGB histogram
Split RGB
Separate R/G/B histograms (available only in RGB + Horizontal layout)
Luma
Luminance distribution
Hue
Hue distribution across 0–360°
Saturation
Saturation distribution (0–100%)
Layout & Zoom
Setting
Description
Horizontal / Vertical
Histogram orientation
Left to right
Direction control for vertical layout
Mouse wheel
Vertical zoom/scaling (25%–2000%)
Middle-click or Double-click
Reset zoom to 100%
Scale & HDR Guides
Histogram scale follows the active project/input scale (IRE, %, 8-bit, 10-bit, PQ, HLG).
When HDR scale mode is set to HDR Reference, PQ/HLG guides include key labels such as 26, 203, and 1000 nits.
Legal-range guides are shown where applicable:
8-bit video legal: 16 / 235
10-bit video legal: 64 / 940
RGB Histogram
Split RGB Histogram
Luma Histogram
Hue Histogram
Saturation Histogram
Masking
Histogram can be used directly to define mask ranges.
Input
Action
Alt + hover
Show precise value/frequency readout under cursor
Click + drag
Select range and write it to the active mask domain
Mask target by mode:
RGB / Luma: luminosity mask
Hue: hue mask
Saturation: saturation mask
Combine this with shape masks from Source Signal for full qualifier workflows.
Combined masking
Appearance
Setting
Description
Fill Opacity
Fill intensity from none to 100%
Render histogram edge
Outline the histogram curve
Show gradient
Draw color gradient in the background
Adaptive scaling
Auto-fit visible range for readability
Smooth Graph
Smooth curve rendering
Custom Reference Lines
Up to four custom reference lines are supported.
Per line:
Enable/disable line
Set value in current scale
Set line color
These are useful for recurring deliverable limits or internal targets.
