Lynx greenMachine HDR Evie User manual

HDR Evie Quick Ref Guide Rev 2.0
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Introduction
This Quick Reference Guide provides information related to greenMachine HDR Evie initial setup and configuration. greenMachine HDR Evie
(Enhanced Video Image Engine), 1 RU half 19” rackmount, is a real-time frame-by-frame broadcast-quality High Dynamic Range (HDR) to
Standard Dynamic Range (SDR) converter, with frame sync supporting formats up to 4K UHD (3840x2160). It is the world’s first system
which uses the advanced algorithm for global dynamic tone mapping in real-time, which automatically analyses HDR stream and applies
optimal corrections on a frame by frame basis. This unique capability is unlike any other solution today. It is the perfect real-time production
tool for sports or any live broadcast event needing high-quality real-time HDR to SDR conversions. HDR EVIE fits best in the single native
HDR workflow reducing cost on equipment and manual operations.
This Quick Reference Guide is designed to help you setup greenMachine HDR Evie and provides the step-by-step instructions to configure
your HDR Evie to achieve the best possible down-conversion from HDR to SDR for your operations. For additional information, please refer
to the “HDR Evie Reference Manual.”
Unpacking greenMachine HDR Evie
The greenMachine HDR Evie comes with the following items:
1x Dynamic HDR to SDR Converter Constellation: GMC-HDR-EVIE-titan
1x Static HDR Conversion Constellation: GMC-HDR-STATIC-titan
1x greenMachine Titan: GM6840
1x external power supply (RPS 6120)
1x power cord (EU, UK or US)
1x SubD 25 audio adapter PCB
1x quick reference guide
1x warranty card
Quick Reference Guide

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Quick-Setup Guide
The following sections will guide you in setting up a new greenMachine Dynamic HDR to SDR converter (HDR Evie). The quick setup is
divided into two sections:
Section 1: This section will demonstrate the initial preparation of hardware and software setup
Section 2: This section will demonstrate the HDR Evie setup configured in Quad 3G Channel (four discrete 3G SDI) mode or 4K UHD
mode for HDR to SDR conversion.
Section 1: greenGUI (Software) and greenMachine (Hardware) setup
This section will demonstrate how to setup greenGUI software on a PC or MAC and will also demonstrate how to set up the greenMachine
hardware.
1. greenGUI Installation
If you do not already have the greenGUI software installed on your PC or MAC, then download and install the greenGUI software
from Lynx Technik AG website from the link below:
https://www.lynx-technik.com/downloads/greengui/
Install and start the greenGUI software on your PC or MAC.
2. greenMachine Network Connection
Connect the greenMachine via LAN Port to the same network with your PC or MAC on which the greenGUI is installed.
Power up the greenMachine and wait for it to finish booting.

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greenMachine Evie in Quad 3G Config.
greenMachine Evie in 4K UHD Config.
3. IP Network Settings
The greenMachine is a networked device and may require network settings for it to be connected to the network. By default, the
IP setting of the greenMachine is set to DHCP. If the network to which greenMachine is connected uses a DHCP server, then the
greenMachine will automatically capture the IP address and other settings. The greenMachine will appear on the greenGUI.
If the network to which greenMachine is connected to does not have a DHCP server, then configure the IP settings manually from
the front panel of the greenMachine as shown in the steps as below:
Press the “System” button to access the Menu
Using the rotary knob, highlight “IP settings” and press to enter
Highlight IP mode and rotate the knob to select “static” in the middle
of the screen and press to enter (default is DHCP mode).
Using the menu system and rotary control, make the required
manual numeric entries for the IP address, Gateway, and Netmask.
Please ask your network/IP support for the settings if needed.
Note : The values given in the pictures above are for demonstration purposes only.
Once IP settings are completed, exit the IP setting menu. The greenMachine will now be visible on the greenGUI running on your PC or MAC.
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greenMachine Evie in Quad 3G Config.
greenMachine Evie in 4K UHD Config.
4. Video/Audio Connection
Connect your HDR Video Signal to the input port/s provided at the back panel of the greenMachine. A user can either select to
use four 3G SDI inputs or one 12G SDI/fiber input depending on the requirement. greenMachine provides four 3G SDI outputs
or one 12G SDI/fiber output.
For example, if the input video signal from the Camera or any other video source is connected to SDI input 1, on the greenMachine,
on greenGUI Control> Main would display a similar page as shown below:
Connect the input ports on the greenMachine as required, considering the limitation of each input and output port. Check
greenMachine ports detail in the back-panel picture, as shown above.
5. Reference input connection
Connect the video reference input port on the greenMachine to a reference source. In case no external input reference source is
available, the user can take the input video signal as the reference source as shown in the picture below:
greenMachine Evie in Quad 3G mode Config.
greenMachine Evie in 4K mode Config.

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6. Deploying Single 4K UHD Channel or Quad 3G channel constellation (Optional*)
Note: To enable zoom in or zoom out, users can use the mouse scroller or can double click.
* A new greenMachine HDR Evie comes with the pre-deployed HDR Evie constellation. In case the constellation type needs to
be changed, follow the below steps:
On the greenGUI software, click on the Universe
page
Zoom in to greenMachine. Verify the name or the IP
address of the greenMachine for which the
constellation type needs to be changed. (Reconfirm
if the correct greenMachine is selected). In case
there are many greenMachines connected on the
network, double click on the greenMachine box on
the left of the UI on the Rolodex, as shown in the
picture below in blue color, and the system will
zoom on to the correct machine.
On the right pane under the Constellation tab, use
the mouse to scroll down to HDR Evie. Press the left
mouse button on the HDR Evie box and drag and
drop it on the left inside the HDR Evie window. The
user will see the gear Icon if done correctly, and
the window shown in next will appear.
Choose the correct type of HDR Evie constellation
from the two options:
•HDR Evie 4K
•HDR Evie Quad
Click on the Deploy button to deploy the HDR Evie
constellation
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Section 2: HDR Evie Configuration
This section will guide you in setting up a new greenMachine HDR Evie constellation.
Note: The settings shown in this Quick Reference Guide is for demonstration purpose only. The user should set the values and parameters
depending on the actual operational requirements and preferences. Use mouse scroller to Zoom in/out on the page Control > Main on
greenGUI.
1. HDR Evie Video Parameters
Perform the following steps to set up your greenMachine HDREvie video Settings.
Note: To enable zoom in or zoom out, users can use the mouse scroller or can double click.
Go to Control > Main and click on the Video tab as shown
in the picture
The window shown in the picture will appear
Zoom in to Video Convert processing block as shown in the
picture
The window shown in the picture will appear.
The page displays the input characteristics and gives an
option of selecting the parameters for the output. The
option provided for the MetaData are Closed Captions,
Time Code, Teletext, and Misc.
The Global Settings provides three options to the user to
select what output to be shown in case there is no input
signal. The options are Test Pattern, Black, or Freeze.
Zoom out and zoom in to Image Proc as shown in the picture
The window shown in the picture will appear.
The options provided to the user are:
1. Video Adjust
2. Color Correction
3. HDR Evie
Click on the Video Adjust tab
In the Video Adjust settings, the user is provided with the
options for clipping YCrCb headroom, Horiz Flip, Blanking
(H/V Blanking), and video settings like Gain, Sat, Black, Hue,
and Aperture. Set the parameters as required.
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Click on the Color Correction tab
In the Color Correction settings, the user is provided with
the options of changing Gain and Offset in RGB and CMYW.
Click on the tab as shown below and adjust the
corresponding parameter in the settings as required
Click on HDR Evie tab
The HDR Evie Panel presents Workflow and Processing
options
Select Workflow and adjust the parameters as required.
(Check description of each parameter below)
Check the description of each parameter in the HDR Evie > Workflow page
For detailed information on processing parameters, refer to the HDR Evie reference manual “Operations Mode.”
Setting
Description
Mode
Operation Mode
There are two options provided in Operation Mode which are bypass HDR/SDR and
EVIE
Bypass HDR/SDR: Selecting this option will bypass the HDR conversion functions
such as transfer characteristics, colorimetry, and ranges. It means the incoming
signal is transparently passed through the system.
Note: In this mode, only “colorimetry” and “range” conversion of SDR signals can be
performed.
EVIE:Selecting this option activates the actual operation of HDR EVIE constellation. It
allows the user to perform HDR-to-SDR down-conversion.
For more information on the Operation mode, refer to the HDR Evie Reference
manual “Operations Mode.”
Presets
There are a number of useful presets provided for quick operations. The following
presets are available to the user for selection:
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Input
Input Transfer
Characteristics
The following input transfer characteristics are provided: SDR, HLG, PQ-ST2084, PQ-
BT2100, Slog3, Panasonic V-log, Arri LogC, RED Log3G10, Canon C-Log2, BMD
Film
For more information on Transfer characteristics, refer to HDR Evie reference manual
“Transfer characteristics.”
Input Colorimetry
The following Colorimetry is provided: BT.2020, BT.709, Sony S-Gamut, ACES, DCI-
P3, Panasonic V-Gamut, BMD Film, Canon Cinema Gamut, Arri Alexa, Red Wide
Gamut
For more information on Colorimetry, refer to the HDR Evie reference manual
“Colorimetry / Gamut.”
Input Range
The following input range is provided: Full, Narrow, and Auto
Full: Full Range is the complete range of bits used for representing blacks and
whites. For example, in a 10-bit signal, 0 bit represents the black, and 1023 bit
represents the White.
Narrow: Narrow Range is the limited range of bits used for representing black and
whites. For example, in a 10-bit signal, 64 bit represents the Black, and 940 bit
represents the White.
Auto:In this mode, the system reads the VPID information on the signal to determine
the “Narrow” or “Full” range.
For more information on range, refer to HDR Evie Reference manual “Signal Range.”
Mapping
Mapping Type
The tone mapping operation can be performed with two possible approaches
depending on the user cases:
1. Tone Mapping Scene light
2. Tone Mapping display light
Select Tone Mapping Scene light when the goal is to match the colors and relative
tones of HDR and SDR cameras.
Select Tone Mapping Display light when the goal is to preserve the colors and
relative tones seen on a reference display.
For more information on Mapping, refer to the HDR Evie Reference manual
“Mapping.”
Output
Output Transfer
Characteristics
The output transfer characteristics provided is SDR
For more information on Transfer characteristics, refer to HDR Evie reference manual
“Transfer characteristics.”
Output Colorimetry
The following output colorimetry is provided: Rec 709, Rec 2020, and Auto
Note: In Auto mode, the output follows the input, and no conversion takes place
For more information on Colorimetry, refer to the HDR Evie reference manual
“Colorimetry / Gamut.”
Output Range
The following output range is provided: Full, Narrow, and Auto
Full: Full Range is the complete range of bits used for representing blacks and
whites. For example, in a 10-bit signal, 0 bit represents the black, and 1023 bit
represents the White.
Narrow: Narrow Range is the limited range of bits used for representing black and
whites. For example, in a 10-bit signal, 64 bit represents the Black, and 940 bit
represents the White.

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Auto:In this mode, the output follows the input, and no conversion takes place. For
example, if the input range is “Narrow,” then the output range will be “Narrow.”
For more information on range, refer to HDR Evie Reference manual “Signal Range.”
Select Processing in the HDR Evie tab and adjust the
parameters as required
(Check description of each parameter below)
Check the description of each parameter in the HDR Evie > processing page
For detailed information on processing parameters, refer to the HDR Evie reference manual “Processing Parameters.”
Setting
Description
Brightness
This parameter is used for adjusting the target brightness of the overall image. The target
brightness is determined by the value of the mean gray. The default value is set to 1.0, which
corresponds to 18% gray.
Note: Higher value can lead to flattening of the image impression.
2.0: gray = 36%
1.0: gray = 18%
0.5: gray = 9%
Default Value: 1.00
Contrast
This determines the slope of the s-curve applied to the image. The default value is set to
1.10, and it slightly increases the contrast.
2.0: extremely high contrast
1.0: contrast unchanged
0.0: extremely low contrast
Default Value: 1.10
Saturation
Due to contrast compression by the Tone Mapping operation and possible adjustment of the
“Target Brightness” and “Contrast,” an adjustment in the brightness component is performed,
which influences the color impression such as saturation. If the saturation impression does not
match the expectation, then the “saturation” parameter offers the possibility in adjustment. The
default value is set to 0.9, which slightly reduces the saturation.
2.0: Extremely increased saturation
1.0: Saturation unchanged
0.0: Extremely reduced saturation
Default Value: 0.9
Adaptation speed
To get a consistent viewing impression, the values during the calculation of Tone Mapping are
temporarily smoothed out. The duration of this interpolation can be selected by this parameter.
The default value is 0.05 and is the recommended value.
1.00: No smoothing at all (Caution!)
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0.05: Normal adaption speed (recommended)
0.00: Extremely slow adaptation speed
Default Value: 0.050
Caution: This adjustment should only be made by experienced users since a higher adaptation
speed can lead to a “pumping” effect.
Scene Change Thresh
A scene change detection processing automatically detects the change of the scene.
The detection of scene change allows the Tone mapping algorithm to automatically adjust its
values and application relevant to the new scene. The adjustment of brightness can, therefore,
be fast and more relevant to the new scene.
This parameter determines the threshold at which a change in the image is detected as a scene
change. If the change in brightness between two frames exceeds the threshold, this frame is
classified as a scene change, and the image brightness is quickly adjusted.
The lower the value of this parameter, the more likely a change between two frames is classified
as a scene change. The default value is 0.125.
1.000: No scene detection
0.125: Normal scene detection (Recommended-but depends on the material)
0.000: Extremely fast (reckless*) scene detection
Default Value: 0.125
Caution: If the “scene change Thresh” is set too low, scene changes might be detected wrongly
and may generate unwanted effects such as light/dark flickering. If the threshold is set too high,
then the actual scene changes may not be detected at all, and brightness adaptation may happen
too slowly.
Clipping Intensity
Clipping intensity influences the automatic result of image analysis by controlling the strength
of the clipping. Higher values will lead to stronger clipping which may cause burn out earlier
and stronger. The default value is set 1.0
2.0: Extremely strong clipping
1.0: Normal clipping
0.0: Almost no clipping
Default Value: 1.0
Dynamic Ratio
It is possible to combine global dynamic tone mapping with a static tone mapping. The
parameter “Dynamic Ratio” allows both techniques to be combined or mixed proportionally. A
default value of 0.6 means the system offers 60% of the global dynamic processing and 40%
of the static processing.
1.0: Global dynamic tone mapping only
0.6: 60% global dynamic tone mapping, 40% static tone mapping
0.5: 50% global dynamic tone mapping, 50% static tone mapping
0.0: Static tone mapping only
Default Value: 0.60

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When the required configuration and settings are achieved,
choose Preview from the top bar as shown in the picture, to
compare the input video signal to the output
The following page will be displayed
Click on the Output button to view the output video signal
next to the input video signal for comparison.
Note:Unlike 4K UHD mode, which supports only one
processing path, quad 3G mode supports four processing
paths. In quad 3G mode constellation, choose the Signal
path from the drop-down menu to
view the correct input and output signal. The user can also
select a group of parameters from the drop-down menu
located at the left corner of the window called App, as
shown below:
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2. HDR Evie Audio settings
Perform the following steps to set up your greenMachine HDREvie audio Settings.
Click on the Audio button
The audio page is displayed on the screen
+
Click on crossbar
The following options are displayed to the users.
Click on the icon if the audio is de-embedded from
the input video signal or if an AES input source is
connected to the external audio interface female Sub-D 25
connector of greenMachine titan. The following picture
shows the crossbar:
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Click on Processing to change input and output audio
settings
Select Inputs and click on the icon if the audio is de-
embedded from the video or if the AES input is
connected, to display the input settings. Adjust the audio
parameters as required.
Select Outputs and adjust the audio parameters as
required.
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