4KScope Waveform/Vectorscope

view up to 4K signals through professional scope tools

4KScope software provides real time, professional quality signal analysis for on set, production, post production, and research and development environments. 4KScope is designed to monitor from 4096x2160 down to NTSC/PAL and everything in between.

4KScope is perfect for Live/Post production, DIT pipelines, Broadcast monitoring, Signal QC and final HDR mastering workflows, including HDR/HLG/WCG monitoring and validating.


ossupport    Windows 7 or greater, macOS Version 10.14 Mojave and greater, CentOS/RedHat 7.4-7.8

4KScope signal analysis

vectorscope/waveform tools

User selectable layout

Chromaticity / CIE XY Gamut

RGB Waveform monitor

YCbCr Waveform monitor

Luma Histogram


...and so much more!

4KScope supports SDR and HDR image analysis with support for 601, 709, 2020, HDR10, HLG and WCG color spaces.  Multiple audio and video scopes can be selected in a variety of layouts depending on your monitoring needs.  For SMPTE 2110/2022 monitoring, please see our 2110Scope.

Network Video Analyzer MainUI

4KScope can display up to six video, data, or audio scopes at one time with pixel accurate 16 bit precision in SDR or HDR.  4KScope is ideal for HDR mastering, DIT and broadcast monitoring, signal QC and remote monitoring.  It is available as software for Windows, macOS, and Linux, or a 1U hardware device from our partner CineSys.


Video Scopes

Vectorscope (with WCG support), Waveform Luma, Waveform RGB, Waveform YCbCr (with HDR10 and HLG support), Histogram RGB, Histogram Luma, Chromaticity, Status

Audio Scopes

Audio Vectorscope, Audio Waveform, Audio Histogram, Audio Phase, Audio Meters in RMS or Loudness

Picture Modes

Red only, Green only, Blue only, Luma only, Zebra luma, Zebra chroma, Clipping, Edge difference, Focus assist, Flip/flop, False color, Opacity, Luma key, Greenscreen/chroma key

Advanced Features

Closed caption display (608, 708, OP-47), error logging, 8/10/12 bit processes as 16 bit, HTML5/Web remote access, zoom and pan, user markers, signal compare, frame capture and more.

Main Use Cases

  • HDR/HLG/WCG monitoring and validating
  • SD/HD/4K monitoring. live production
  • DIT pipelines
  • Broadcast monitoring
  • Remote network monitoring
  • Post production
  • Signal QC and final HDR mastering

Available Upgrades

  • 2110Scope
    • All 4KScope features
    • Network packet timing and chart
    • 10G/25G/100G NIC support
    • SMPTE 2110 and 2022
  • videoQC
    • File based analysis same scope set as 4KScope
    • Single sided analysis
    • Full reference analysis
Vectorscope - Color accurate graticules automatically switch between SD (601), HD (709) and 4K/QHD (709 or 2020) color spaces. The markers include color points (for standard bar checks) at 75% and 100% saturation. All the standard points are boxed; red, magenta, blue, cyan, green and yellow. A skin tone/flesh line is provided to allow for easy hue adjustment as well as standard diagonals.
Waveform YCbCr - Displays the levels of the Y, Cb and Cr from the left of the picture to the right of the picture with all the lines summed into one graph. The Y, or luma/luminance, graph provides accurate white and black level information, as well as the range in between. The luma waveform supports standard, HDR10 (Dolby Vision /ST.2084) and HLG (Hybrid Log Gamma) display up to 10,000 nits.
Waveform Luma/NIT Light Level - Displays the overall intensity of the picture. Standard 601/709 levels are supported, as well as NITs display for HDR/ST 2084 and HLG signals.
Waveform YCbCr Parade - Displays the levels of the Y, Cb and Cr from the left of the picture to the right of the picture with all the lines summed into one graph. The Y, or luma/luminance, graph provides accurate white and black level information, as well as the range in between.
Waveform RGB - The RGB Waveform Monitor shows each of the red, green and blue signals as independent graphs, displaying the RGB, or chrominance/color values associated with the signal. Above is the stacked waveform, a parade waveform is also available.
Waveform RGB Parade - The RGB Waveform Monitor shows each of the red, green and blue signals as independent graphs, displaying the RGB, or chrominance/color values associated with the signal. Above is the parade waveform, a stacked waveform is also available.
CIE XY Gamut - The CIE XY Gamut, or chromaticity, scope provides a visual representation of the color in a video across all the colors of visible light. For a particular YCbCr range (BT.2020, P3, Rec.709, CCIR-601) a triangle can be superimposed to show the colors that fall within the acceptable range and those that are outside it. The color of the trace can be white, black, or the chromaticity hued background.
Waveform High/Low - The Waveform Monitor in high/low mode allows the colorist to focus just on the blacks and peaking levels in the signal. Traditional scopes can zoom into one or the other, but this view gives access to both at the same time.
Histogram YCbCr - The Histogram YCbCr / YUV scope displays the luminance, and both chroma signals stacked top to bottom. Y is the luma component and Cb and Cr are the blue-difference and red-difference chroma components. .
Histogram Luma - The Luma Histogram shows the distribution of luminance within the signal as a series of discrete bars that make a continuous graph. This display provides an overview of the tonal range of each color in the picture.
Histogram RGB - The Histogram RGB scope displays each of the R, G, and B (red, green, and blue) channel values stacked top to bottom. RGB color space is directly represented; equivalent values are generated for other color spaces.
Histogram HSV - The HSV (Hue/Saturation/Value) Histogram shows the distribution of hue (which color appears most prominent) in the top row, the saturation level (how much gray in each particular color) in the center, and the value (luminance, or how light or dark the signal appears) in the bottom row.
Data View - The Data view allows access to the raw pixel values being monitored on the HDMI or SDI input. Raw values are captured and displayed with no manipulation by the software. This mode is perfect for checking vertical blank signalling and metadata, as well as picture issues like inner line sync markers or out of range colors. Pixel starts can be selected, along with lines, in the edit boxes above the data area.
Status - The Status view presents real time data on the overall signal in terms of gamut, maximum and minimum chroma and luma, audio levels and MaxFALL/MaxCLL for HDR signals. Any issues detected by the status panel are automatically entered in the log file and window with time, type, source and reason.
H/S Scope - The H/S Scope allows easy calibration of lighting or camera to a standard DSC ChromaDuMonde chart. The target color level or saturation is calibrated to a single horizontal line in the chart. The color hue component is mapped horizontally, with standard 601, 709 or 2020 targets as vertical lines.
Audio Meters - Up to 16 audio channel metering is supported. Meter types include dbFS, SMPTE RP-155, EBU R-86, Loudness (at +9 or +18) and PPM wth EBU or BCC markings.
Audio Phase - The audio phase meter shows the relative density of two audio channels and the relative loudness as a line moving towards the louder channel.
Audio Vector Lissajous - The audio phase meter shows the relative density of two audio channels and the relative loudness as a line moving towards the louder channel.
Audio Vector Lissajous XY - The audio phase meter shows the relative density of two audio channels and the relative loudness as a line moving towards the louder channel.
Audio Histogram Linear - The audio histogram displays a bar chart of the levels of the components of an audio signal.
Audio Histogram Linear Reverse Log - The audio histogram displays a bar chart of the levels of the components of an audio signal.
Audio Histogram Log - The audio histogram displays a bar chart of the levels of the components of an audio signal.
Waveform - The waveform displays the selected pair's audio as a standard wave.

The Picture view shows the video signal, to confirm the source is correct and to display time code location. Action Safe, Title Safe, Graphic Safe, Picture Frame, and Active Region graticules are optionally available. A number of display modes can be set using the Display Mode selector:

Luma - Show only the Y or brightness of the picture.
Red - Show only the red channel.
Green - Show only the green channel.
Blue - Show only the blue channel.
Zebra Luma - Draw zebra bars where the luma is too high or too low.
Zebra Chroma - Draw zebra bars where the chroma is out of range.
Clipping - Draw green anywhere the signal is too low, or red anywhere the signal is too high.
Edge Difference - Highlight every edge in the picture.
Focus Assist - Show areas of the image that are in focus.
Flip/Flop - Flip the picture horizontally or vertically.
False Color - Show each exposure level as a color. See Here for details.
Luma Key - Show the video luma keyed over a checkerboard or image.
Green Screen - Show the image green screen keyed over a checkerboard.
Green Screen Despill - Show the image green screen keyed with edge despilling over a checkerboard.
Closed Caption Detection and Display - Decode closed captions from line 21 encoding (SD) and line 9 ANC encoding (HD). SD 608, HD 708 and OP-47 can all be decoded in real time and displayed as text over the picture. The actual data can also be viewed on line 9, or 21 for SD, in data mode. CC type detection is also displayed.
Error Log Window - The error logging review window displays the video and audio errors from the log stored on disk. These include loudness overages, out of gamut, luma too high/low, chroma too high/low, broadcast illegal colors, repeating lines, saturation errors, signal loss and recovery, and other error detection.
8 Bit Signal - 8 bit signal processing is supported, including detection of 8 bit signals in a 10 bit path (note the missing lines/bins).
10/12 Bit Signal - Smooth scopes on true 10 and 12 bit signals display every possible level in the signal, allowing finer analysis.
HTTP/Web Server - Check the status of your facility from anywhere with our live HTTP/Web page interface. Real time updates in pure HTML5 without any extra plugins.
Remote Desktop Access - You can also control and view using standard remote desktop tools to create a full featured monitor for your entire facility. This video tutorial gives an overview of setting up a remote system with an AJA U-TAP and KUMO series router.
Zoom and Pan - The waveform monitors and vectorscope zoom in for a closer look at low saturation signals, or the luma elements of the waveform. The live picture can also be zoomed in or out, and panned with the mouse. To zoom, roll the mouse wheel. To pan, click and drag. To reset to normal view, right click the mouse. Specific 1x, 2x and exact decimal zooms are also available in the config dialog.
Signal Compare - The signal compare feature can be used to freeze a complete frame of video (two fields in interlaced), every second line (field), or at a 50/50 dissolve to compare two signals or cameras. Once frozen, all the standard scopes are still available for setup and comparison. While a frame is frozen, the comparison mode and type of scope can be changed.
User Markers, Lines, Circles and Boxes - Users can place plus sign markers (+) and lines on any of the scopes, that will persist to help make exact measurements between different signals.
Raw and JPEG Capture - The incoming image can be captured as a raw (YUV, V210, or RGB10, depending on the input) image in full, bit perfect resolution or a JPEG version for easy sharing. The entire scope's interface can also be captured.
Full HDR Support - Along with Rec 709, both SMPTE 2084/HDR10 and HLG luminance HDR profiles are supported. BT.2020/WCG is also supported to allow analysis of full color WCG, as well as in contained color display standards list P3.
Loudness and RMS Metering - All audio meters can be set for EBU9 or EBU18 loudness monitoring, as well as RMS/peak. The status window also supports loudness as a floating point value, and any excursions are automatically collected in the on disk error log.
Vertical Blank Analysis - Up to 32 lines of vertical blank can be analyzed along with the active picture. Captions, time code and other decodable metadata is automatically detected. Any SMPTE DID/SDID packets found are highlighted in the HEX Data view.
Line and Region Select - as well as full picture analysis, the scopes can be set to analyze a single line or a rectangular area of the picture, to detect finer detail errors.
Time Code - read multiple time code types simultaneously and display them in the lower third data area. RP-188 VITC and LTC, SMPTE LTC (analog), vertical blank encoded VITC and RP-215 film KLV time code are all supported.
Full Screen Mode - Double clicking on the interface will put 4KScope into full screen mode. This maximizes the space for the scopes and the picture, but maintains a time code info line at the bottom of the monitor.
Camera Support - All SDR (HD/SD) and HDR/HLG cameras are supported along with direct support for ARRI, Canon, RED, Sony, Panasonic and AJA production cameras, utilizing standard or custom curves and/or LUTs.
Main Use Cases - HDR/HLG/WCG monitoring and validating, SD/HD monitoring. live production, DIT pipelines, broadcast monitoring, remote network monitoring, post production, signal QC and final HDR mastering.
Hardware and OS Support - 4KScope is available for Windows 64, macOS 10.14 Mojave, and RedHat/Centos 64. It is also available as a hardware device from our partner CineSys.
Capture Board Support - Capture boards supported include AJA, Bluefish444, Blackmagic (DeckLink, UltraScope, Cameras, DiskRecorders), Matrox, NewTek NDI®, IOGeni, Magewell, Logitech, Epiphan, Microsoft and many more.
ScopeDirect for Avid/Adobe - 4KScope provides a ScopeDirect Transmitter for Adobe and for Avid that allows users to monitor the main output directly without SDI/HDMI or IP Video being used to connect them.

90 Seconds With 4kScope

Full HDRScope demo / walk through

Remote Desktop with 4kScope

Video Inputs

(hardware dependent) 


  • Single Link SDI/HD-SDI 4:2:2 8/10 bit
  • Dual Link HD-SDI 4:4:4 10/12 bit
  • Dual Link HD-SDI 4:4:4:4 10 bit
  • Quad Link HD-SDI (Quad HD and 4K) 4:2:2 or 4:4:4 8/10/12 bit
  • 3G/6G Dual Link HD-SDI 4:4:4 10/12 bit
  • 3G/6G Dual Link HD-SDI 4:4:4:4 10 bit
  • 3G/6G Dual Rate SDI/HD-SDI 4:2:2 8/10 bit
  • 12G QHD/4K Quad Link and 2SI 12G (sample interleave)
  • CCIR-601 (SD), Rec.709 (HD), BT.2020 (WCG), P3 or Rec.709 (QHD/4K)
  • HDR (High Dynamic Range) as ST2084/PQ/HDR10 or HLG


  • HDMI (1.4 or 2.0+, hardware dependent)


  • NDI <network local> - (Network Device Interface) Any NDI audio/video source


  • AJA shared mode (requires AJA board)
  • ScopeDirect - receive audio/video from application running on the same machine
  • ScopeDirect Transmitter (Adobe)
  • ScopeDirect OpenIO (Avid)
  • Adobe/Avid NDI


  • View your desktop through scopes


  • Reference video sync (Blackburst or Tri-Level, hardware dependent)

Audio Inputs

(hardware dependent) 

  • NewTek NDI®
  • Embedded audio, up to 16 channels 24 bit
  • Analog audio, up to 16 channels 16/24 bit
  • AES/EBU audio, up to 16 channels 24 bit


  • Main output (computer monitor) from HD up to 8K
  • Secondary down converted output available
  • SD/HD/2K down conversion to HDMI and analog
  • HDMI 4K quadrant output
  • Available in monitor HDR -> SDR picture conversion

Format Support

(hardware dependent)

  • 720p - 23 / 24 / 25 / 29 / 30 / 50 / 59 / 60
  • 1080i - 23 / 24 / 25 / 29 / 30
  • 1080psf - 23 / 24 / 25 / 29 / 30
  • 1080p - 23 / 24 / 25 / 29 / 30 / 50 / 59 / 60
  • 2K Digital Cinema (2048 x 1080) - 23 / 24 / 25
  • 2K Film (2048 x 1556) - 14 / 15 / 23 / 24
  • UltraHD/UHD (3840 x 2160) - 23 / 24 / 29 / 30 / 50 / 59 / 60 
  • 4K (4096 x 2160) - 23 / 24 / 29 / 30 / 50 / 59 / 60 

Processing Modes

4K/QHD Processing Modes

  • YCbCr 8 bit 4:2:2
  • YCbCr 10 bit 4:2:2 (standard single link)
  • RGB 8 and 10 bit 4:4:4:4

SD/HD Processing Modes

  • YCbCr 8 bit 4:2:2
  • YCbCr 10 bit 4:2:2 (standard single link)
  • RGB 8 and 10 bit 4:4:4:4
  • RGB 10 and 12 bit 4:4:4 (standard dual link or 3G)
  • Full active picture
  • Up to 32 lines of vertical blank
  • HANC processing for audio and time code


(hardware dependent)

  • LTC/SMPTE analog time code and user bits
  • VITC/D-VITC vertical blank time code and user bits
  • RP-188 HANC time code and user bits
  • RP-215 VANC time code, user bits, key code and ink code
  • Active Format Description detection
  • DID/SDID detection and highlighting

Recommended Hardware Environment

Our scopes can run on a variety of hardware, but for real time performance on multiple scopes, here are some general guidelines:

HD 1080p60
- A recent Intel, AMD or NVidia with at least 1G memory card is fine for the GPU
- A recent Quad Core i5/i7/AMD processor with at least 8G of ram

- A gaming level NVidia or AMD (NVidia 1080 or better/AMD Vega 2 or better)
- Minimum 8 cores [16 virtual] Intel/AMD, recommended 8~12 cores with at least 8G ram

Supported I/O Hardware

  • Bluefish444:  Epoch Supernova, Epoch Neutron, KRONOS
  • AJA:  KONA LHe/plus, KONA LHi, KONA 3G, KONA 4, KONA IP, KONA 5, KONA HDMI, Io-XT, Io-4K, OEM2K, Corvid Series, U-TAP
  • Blackmagic (version 11/12 drivers required): UltraStudio, DeckLink, Intensity Pro, Intensity, Mini Recorder, UltraScope, HyperDeck, Ursa, BMPCC
  • NewTek:  NDI®
  • Inogeni:  4K, 3G, DVI, VGA/CVBS
  • Magewell:  HDMI and SDI USB-3 devices
  • Logitech:  HDMI Screen Share
  • Elgato:  Game device capture devices
  • Mokose:  HDMI/SDI USB-3
  • Epiphan:  AV.io HDMI/SDI/4K
  • Digitnow:  HDMI USB Capture
  • Rybozen:  HDMI USB Capture
  • Microsoft:  USB Cameras
  • UVC: Most (USB Video Class) compliant video devices

Download 4KScope 7.0

End User License Agreement:  International  Canadian

Available for Windows 7 or greater, CentOS/RedHat 7.4-7.8, or macOS Version 10.14 Mojave and greater. Please note, Apple's M1 devices are not currently supported.

To ensure optimal hardware support, please make sure your drivers are up to date:

Blackmagic Design drivers (12.x)

AJA drivers (16.x) [UVC/U-Tap drivers are in OS]

Bluefish444 drivers



4KScope installs in demo mode, with limited functionality. To unlock the full feature set of the software you will need at least a temp license. Please generate a site code and send it to us at: authorization@drastictech.com. We will send back a site key which will remove the demo limitations. Prior to purchase, the key will be temporary. There is more detailed information on the licensing process here: http://license.drastictech.com

4KScope Manual

More great products from Drastic


videoQC is a media player that provides a range of QC tools for files and IP streams. It supports many file types, and provides automated and visual comparison modes...

Drastic HDRScope is the world's most powerful 8K through SD software signal monitoring tool and HDR image analyzer. It includes waveform (luma, YCbCr...

FlowCaster - remote collaboration tools

Use www.flowcaster.live for real time group review of edit sessions anywhere in the world, with no render or upload required! Share audio/video/captions/time code from the editor's output in real time...


For more than two decades, Drastic™ has been developing cutting edge solutions for television, post production and sports broadcasting, from real time web delivery to 8K broadcast.

We offer standalone software for the end user or enterprise, integrated solutions for automated workflows, and OEM tools for custom applications or branded devices.

Contact Us

523 The Queensway, Suite 201
Toronto, ON
M8Y 1J7, Canada

Phone: +1 (416) 255 5636

Email: info@drastictech.com

Fax: + 1 (416) 255 8780