How to use DVK-400 4K Chromakey

Supports 12G-SDI 60P Video & 4:4:4 10-bit Internal Processing
Sam Huang


The Secretary of the Taiwan Multimedia Creative Teaching (TMCT) Association and Director of the Taiwan Microlecture Association, Sam has been an audio and video professional for 20 years. Sam is a master in scriptwriting, videography, live video production, non-linear editing, and live video streaming. As the Secretary and Director of two associations, both educational NGOs, Sam has a strong passion for media education. He has many years of teaching experience in the College of Communication as a professional lecturer.

Skills: Scriptwriting, videography, live video production, non-linear editing, and live video streaming.

Experience: Many years of teaching experience in the college of communication as a professional lecturer.

Course category

About the course

The Datavideo DVK-400 is an advanced 4K Chromakeyer designed to provide a perfect chromakey effect with its easy-to-use user interface.

The Datavideo DVK-400 4K Chromakey can be connected to a notebook PC locally or any IP network remotely.

DVK-400 4K Chromakey Supports 4:4:4 10-bit Internal Processing

DVK-400 is compatible with the 3840 x 2160 4K signal, providing a professional real-time chromakey effect.


DVK-400 Digital Algorithm Technology

The DVK-400 can handle the most challenging chromakey scenes, including blonde hair, a glass or bottle of water, smoke, and reflective shadows, delivering a delicate and realistic chromakey effect.



After configuring all the chromakey parameters, you can still adjust each video parameter, such as brightness, contrast, color, and saturation, to seamlessly blend the foreground and background.

Supports 12G-SDI 60P Video

Supports up to 2160p60 over 12G-SDI or HDMI 2.0.

Intelligent Matte Control and Auto Spill Adjustment

The Matte precision chroma key setting allows you to adjust the profile of the object easily. The automatic spill adjusting function allows you to eliminate the reflective background color from the foreground object easily.

Auto Chromakey by Pressing One Button without Complicated Adjusting

The Auto key function helps you achieve professional chroma key effects without any complicated settings, even when you don’t have the standard green or blue background.

Holdout Mask

Users can easily specify areas of the image that shouldn't be keyed, such as the green color on a TV screen.

The Datavideo DVK-400 4K Chromakey can be used in various live events where primary video sources are either HDMI or SDI. The DVK-400 supports up to 4K videos and is equipped with easy-to-use Spill Suppression and Color Enhancement features.

  • 4K real-time chromakey with 4:4:4 color sampling and 10-bit color depth

  • Easy operation and control via LAN connection to a Notebook PC

  • Advanced algorithm for presenting transparency, smoke, reflection, and shadow in detail

  • Easy-to-use Spill Suppression function

  • Flawless integration of the foreground to the background

  • Multiple HDMI and SDI outputs for Program and Preview

  • Mirrored Program view

  • User Memory Presets

  • Chromakey Noise Reduction

  • Matte Control for adjusting Black and White Levels to achieve precise chromakey by eliminating reflective colors from the foreground.

  • Dark/Brightness and Shadow Enhancements

  • Calibration of brightness, contrast, and saturation of the foreground to facilitate post-editing

  • Garbage and Holdout Masks with a soft edge

  • Lumakey with Layer Swap

  • Supports Background Blur

  • Supports Auto Chromakey


For more product info, please go to:

What you will learn

After this course, we should have a basic knowledge of how to use DVK-400.

Background knowledge, skills and tools needed for this course

Student need to know how chromakey and lumakey works.

Who is suitable for this course

Film practitioners and those who are interested in virtual studio work.

Standard to pass this course

  • Course completion 100%
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Can only be evaluated when 1/3 of the course is completed