Seada DS2 User manual

SD-MA-029
DS2 User Guide
This user guide provides basic instructions for setting up SEADA DS2 Edge
Blending Controller and how to create eye catching video projection
screen using its management software.
Document No. SD-MA-029
Document Version: 02

SD-MA-029
Contents
I. SET UP CONNECTION..........................................................................................................1
II. EDGE BLENDING SETUP PROCEDURES................................................................................2
1. SET UP YOUR PROJECTORS .........................................................................................................2
2. CONNECT DS2 TO PROJECTORS AND OTHER DEVICES.......................................................................2
3. FIND THE EDGE BLENDING OVERLAP POSITIONS ON SCREEN ..............................................................2
4. EDGE BLENDING CONFIGURATION ..............................................................................................2
III. UI.......................................................................................................................................3
IV. OPERATION ........................................................................................................................4
1、LAYOUT....................................................................................................................................4
2、EDIT ........................................................................................................................................5
3、CONNECTION SETTINGS...............................................................................................................5
4、CONFIGURATION........................................................................................................................6
4.1 Output Resolution Setting .......................................................................................6
4.2 System Setup ...........................................................................................................7
4.2.1 Parameter Settings (edge blending Step 1).............................................................7
4.2.2 Geometry Correction (edge blending Step 2) ..........................................................9
4.2.3 Gamma Correction (edge blending Step 3) ...........................................................12
5、VIDEO....................................................................................................................................14
6、PICTURE.................................................................................................................................16
7、OTHER COMMANDS .................................................................................................................19
8、HELP .....................................................................................................................................21
V. CONTROL ASSISTANT TOOLS ............................................................................................22
1、OSD .....................................................................................................................................22
2、VIDEO CONTROL ......................................................................................................................23
3、SET UP UART..........................................................................................................................24

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i. Set up connection
1. Set up the static IP address on control PC
The default IP address of DS2 is 192.168.1.136. The control PC needs to be at the same
range of controller to connect to the DS2
•Open the ‘Ethernet Properties’ windows on the Control PC
•Highlight the TCP/IPv4 in Networking and click the Properties button to
open the TCP/IPv4 Properties window
•Change the ‘Obtain an IP address automatically’ to ‘Use the following IP
address to set up a static IP address
➢IP address: any address between 192.168.1.1 and 192.168.1.253
except the address which has been taken by the DS2
➢Subnet mask: 255.255.255.0
➢Default Gateway: 192.168.1.254.
2. Connect the control PC to powered up DS2 with network port. Ensure
the ‘LAN’ port on DS2is connected, not the ‘RS232’ port since both of them use
RJ45 connetion.
3. Open the DS2 software and click ‘Player Connection Settings’ or ‘P’
button on toolbar to open the connection dialog box.
In this dialog box, all the
DS2 units connecting to
this control PC will be
shown in the list. Highlight
DS2 to be connected and
then press ‘Connect’
button to connect. A
‘connected’ message will
be shown once the
connection is established.
Note:
if the DS2 software can not be run on the control PC
Reason
VC++ redistribution not installed at current OS
Solution
Please install the ‘vcredist_x86.exe’ coming with the software, in the folder of
Libs
If a ‘Please change your display scale to 100%’ message dialog box coming up, please
change scale back to 100% in control PC’s Display Settings

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ii. Edge Blending Setup Procedures
Note: This manual used 1x2 edge blending as an example.
1. Set up your projectors
Make sure the projectors cover the whole screen evenly and proper overlap is formed.
2. Connect DS2 to projectors and other devices
Ensure the ‘LAN’ port on DS2 is connected, not the ‘RS232’ port
3. Find the edge blending overlap positions on screen
a. Calculate the overlap width using the equation is: 𝑊 = L∗P
T
W: Edge blending overlap width
L: Length of the projection screen
T: total pixels of the projection
P: edge blending area total pixels
b. So, the right edge of projector A is L
2+W 2 and the left edge of projector B is
L
2−W 2
c. Example:
i. L is 300cm
ii. Project A and B output resolution is 1920 x 1080,
iii. Edge blending area pixels is 240 pixels
iv. So T = (1920*2-240) =3600 pixels
v. W = (300*240)/3600 = 20cm
Therefore, the edge positions for project B A is 0 at left and 160cm at right. The
edge positions for projector B is 140cm and 300cm at right.

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4. Edge Blending Configuration
Step1: Parameter Settings (see detail in chapter 4.2.1)
Users set up the edge blending projection screen configuration here:
•Layout of the edge blending e.g. 1x2, 1x3, 2x2 and so on
•Set up the overlap zone size, default is 240 pixels
Step2: Geometry Correction (see detail in chapter 4.2.2)
Geometry Correction (Image Warping) is the process of digitally manipulating image data such
that the image’s projection precisely matches a specific projection surface or shape. Image
geometry correction compensates for the distortion created by off-axis projector or screen
placement or non-flat screen surface, by applying a pre-compensating inverse distortion to
that image in the digital domain. Therefore, projection can be applied onto any non-flat
surfaces such as curve shape, corner walls and so on.
Step3: Gamma Correction (see detail in chapter 4.2.3)
Because the edge blending overlapping zone will have a brighter than normal image, Gamma
Correction is performed on the edges to allow seamless merging of the images together. The
gamma correction is basically an S-shaped curve that is applied to gradually reduce the
brightness of the image at the edge, so that they can overlap properly.
S-curves below are for left and right projectors in the edge blending zone. S-curves, when
properly overlapping, will add together to result in even brightness in the edge blending zone
same as the rest part of the projection screen

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iii. UI
DS2 management software provides a GUI in ribbon style for the users and enables users to
interactively move, resize, position, and crop any input capture windows. The whole GUI
consists of three main parts:
1. Toolbar
Users can manage the DS units with the commands on the toolbar
2. Video Input List
It lists all the different shapes of the windows. Users can drag and drop onto projection
screen for video input 1 and 2.
3. Projection Display Area
It shows the layout of current windows on projection screen and users can manage the
inputs windows here via mouse
4. DS2 Onboard Layout List
It shows the preset layouts on DS2. Users can load and delete the layouts here on DS2.
2
1
3
4

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iv. Operation
1、Layout
Users can set up the layouts for the open
windows of input video from HDMI
capture on the wall. The layouts will be
saved onto control PC, not onto DS itself
and the amount of the layouts can be
saved are unlimited here.
1.1 New Layout
Create a new blank layout
1.2 Open Layout
Open an existing layout from the control PC
1.3 Save Layout
Save the changes to the current layout onto control PC
1.4 Save As
Save the current layout to as different layout onto control PC
1.5 Exit
Exit the software
1.6 Import Layouts onto DS2
Uses can load the layouts from control PC onto DS2 or delete the layouts from DS2 in this
section. Right click on ‘DS2 Onboard Layout List’ area to open the dropdown menu.

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2、Edit
Users can close single or all the opened windows of HDMI captured videos in
Projection Display Area
2.4 Close
Close the current highlighted on the Projection Display Area
2.5 Close All
Close all video input windows on the Projection Display Area
3、Connection Settings
3.1 Player Connection Settings
All DS2 units connecting to this control PC will be shown in the list. Highlight DS to be
connected and then press ‘Connect’ button to connect. A ‘connected’ message will be
shown once the connection is established.

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3.2 Player Network Parameter Configuration
Users can change the network settings of the connected DS2 in this section.
3.3 Connection
Once being pressed, control PC will reconnect to the DS2 automatically.
4、Configuration
4.1 Output Resolution Setting
Users can set up the output resolution to match the projectors to be used in the edge
blending.
(1024X768@60Hz 、1280X768@60Hz 、1280X800@60Hz 、1280X1024@60Hz 、
1920X1080@60Hz)
users are also able to customize the output resolution in this section.

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4.2 System Setup
Users set up and tune the edge blending in this section to do Geometry and Gamma
correction and eventually to get projectors to form a uniform display image wall.
4.2.1 Parameter Settings (edge blending Step 1)
Users set up the layout and parameters of edge blending zone,
1) set up how many outputs and also the layout of the projectors. e.g. 1 x 2
users can set up the layouts, rotation, and edge blending overlap width here.
projector box

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2) To adjust the edge blending overlap width if needed, the default is 240 pixels,
a. Rules of thumb, the physical
projectors’ projection overlap
width on the wall needs to be
bigger than edge blending width.
b. if smaller edge blending zone is
needed, double click on double
clicking the projector box (see
image above) to open the Edge
Blending Width Adjustment dialog
box
c. Users can always come back to change the width of edge blending overlap
3) Choose how many channels here for the edge blending and then press ‘Next’ to go
to ‘Geometry Correction’ Step
a. Users are able to define the colour of backgound and grid here
b. ‘Go to Gamma Correction’ here is the option for uers to jump to the gamma
correction without doing geometry correction.

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4.2.2Geometry Correction (edge blending Step 2)
First, the software shows the first output channel with grid of 1920x1080 (default, users can
change at chapter ‘4.1 Output Resolution Setting’) and it will be displayed onto the wall as
well. Users can use mouse scroll wheel or hotkeys of ‘+’ and ‘-‘to change the size of the grids
of current channel.
The 2nd output will show in different colour grid. users can use comma ‘,’ or ‘.’ on control PC
keyboard to zoom in/out the grids.
User hotkeys below to help the adjustment.
Hotkeys:
Ctrl + mouse left click: multi adjusting points selection point by point
Ctrl + allow keys: multi adjusting points selection point by point
Shift + mouse left drag: multi adjusting points selection in group
Shift + allow keys: to switch to next adjusting point
‘-’: Zoom out the adjusting grid of current Channel
‘+’: Zoom in the adjusting grid of current Channel
‘.’: Zoom out the adjusting grid of adjacent Channel
‘,’: Zoom in the adjusting grid of adjacent Channel
Arrow keys: Adjust the adjusting point position
Backspace: deselect the adjusting points
‘F5’: Refresh
‘H’: switch selections (single point, row, column or all)
‘R’: Reset all settings of this step

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Step 1: Adjust 1st Channel
Move the 4 edge lines of first channel (two adjustment points for each line at 1920 x 1080 grid
size) to match the 4 edges line of projection screen.
Zoom out the grids to make sure all the lines and straight, otherwise move the lines or
adjusting points to ensure the lines are straight and each grid’s width/length are at the same
size on projection screen.
Grids on software
Corresponding grids on projection screen
If the projection screen is flat, all the lines and grids should not need large adjustment. if the
surface is curve and uneven surface, users need to adjust each line to make sure the lines are
straight, grid sizes are same. See the unadjusted projection on the curve screen below at left
and adjusted projection on right.
Once it is done, press ‘Next Channel’ to be ready for adjustment of next channel.

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Step 2: Adjust 2nd channel
in adjustment of Channel 2. Do the same procedures as done for the 1st channel: Move the 4
edge lines of first channel (two adjustment points for each line at 1920 x 1080 grid size) to
match the 4 edges line of projection. Now the edge blending overlap zone has been setup
Step 3: Geometry correction in edge blending zone
Then to zoom out the current
channel’s (channel 2) and
previous channel’s (channel1)
grid at the same time step by
step from 1920 x 1080 to 30 x
33.75 pixel.
•mouse scroll wheel or
hotkeys of ‘+’ and ‘-‘for current
channel (channel 2)
•‘,’ and ‘.’ Hotkeys for previous channel (channel 1)
Each step, both channels are at the same resolution, users need to move the points, lines of
the 2nd channels in edge blending zone onto top of the channel 1’s points and lines to precisely
match each other. If needed, the rest of points and lines need to be adjusted as well to ensure
the straight lines and same size of grids.
Step 4: Background Adjustment
This feature is for users to crop
certain part of the projection onto
the screen. e.g. if the projection
screen has a window or door on it,
users can use this feature to crop
them out. If there is no area needed
to be cropped, this step can be
skipped and press ‘Next’ button
directly to go to Gamma Correction.

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4.2.3 Gamma Correction (edge blending Step 3)
User can adjust brightness for the Edge Blending area to match the rest of the projection.
e.g. for a two-projection edge blending, users need to adjust the brightness of ‘right of
Channel1’ and ‘left side of Channel 2’).
Users can set up the sync of both channels, so when channel 1-right is adjusted,
channel2-left will be adjusted automatically see image below
1. Adjustment Modes
DS2 has two adjustment modes: Gamma Line and Custom Line
a. Gamma Line
Gamma line is the optimized linear adjustment method from SEADA. Users can easily
do the gamma correction by adjust the value of linear gamma line.
b. Custom Line
Custom line enables users to adjust the gamma correction stripe by stripe in pixels

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The brightness always starts from ‘256’ and finishes at ‘0’. Users can use mouse scroll
wheel or hotkeys to change the amount of adjustment points.
Tip: Only the ‘right’ of channel1 and ‘left’ of channel 2 need the gamma correction with
this curve adjustment. The adjustment points for top, bottom and the other lines all need
to be set up at 256 otherwise users will see the black stripe on display wall.
2. Luminance Coefficient
If the two projectors have brightness difference, DS can change the whole projector
output brightness by using different Luminance Coefficient.
Once the gamma correction is done, press the ‘cancel’ to save and exist the edge blending
set up. Now the edge blending processing is done (see below the projection screen of 1x2
edge blending with two projectors)

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5、Video
Users can manage the video source played on built-in media player here.
5.1 Video Source Setting
Users can manage the video folder and files on the built-in media player in this section.
1) Refresh
To reload the video folders and files from DS2 onboard storage
2) Send Video File
Users can load the video sources onto built-in media player from the control PC
Note: the single file size needs to be smaller than 2GB
3) Send Video Folder
Users can delete the unwanted video from DS device by highlighting the file in the File
List and pressing the ‘Delete Video File’ button.
4) Play Video on Screen
DS has ability to create two separated edge blending walls on one unit. e.g., users can
create two 1x2 edge blending walls on a 4 channels output DS.
Highlight the file in the File List and press this button to play the very video on 1st edge
blending wall
5) Delete

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Highlight the file in the File List and press this button to play the very video on 2nd
edge blending wall
6) Rename
Highlight the file in the File List and press this button to rename the video name in the
list to the new name users entered in ‘Video File Name’
7) New Folder
Highlight the file in the File List and press this button to rename the video name in the
list to the new name users entered in ‘Video File Name’
8) Volume Control
Highlight the file in the File List and press this button to rename the video name in the
list to the new name users entered in ‘Video File Name’
9) Play Time Control
Highlight the file in the File List and press this button to rename the video name in the
list to the new name users entered in ‘Video File Name’

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6、Picture
Users can manage the images on DS2 onboard storage, USB and Cloud and set up the display
of these images on the projection screen in this section.
6.1 Picture Manager
Users can load the pictures from the PC to DS2 and manage them in this section.
1) Folder
It shows the current picture folders on the onboard storage and how many pictures in
each folder. All the pictures will be viewed in icon mode in display area.
2) New Folder
Type in the name and press this button to create a new empty folder
3) Del Folder
Highlight an existing folder and press this button to delete this folder and all the
pictures in the folder
4) Add Pic
Add new pictures into the highlighted folder
5) Add Pic Folder
Add the folder with the pictures from the PC to DS2
6) Del
Delete the highlighted pictures in the folder
7) Exit
Close this window

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6.2 Picture Play Control
Users set up the play mode and locations on projection screen for the pictures in this
section
1) Play Mode
DS2 have wave and PPT two modes. Users can add as modes as they want to the play
list.
2) Setting
Settings for Wave Mode
AreaLeft:
Position of left-side of display area
Speed:
Picture moving speed
AreaRight:
Position of right-side of display area
Direction:
Picture moving direction in display area
AreaTop:
Top position of the picture display area
Control Device:
pictures source (Local Disk, Phone or USB
stick)
AreaBottom:
Bottom position of the display area
Phone Loop
Times:
Picture from smart phone loop times
ImageHeight:
Picture height in picture display area
Device and U-
disk Loop Time:
Picture from local disk and USB stick loop
times
Amplitude:
Picture wave amplitude
U-disk Folder
Selection:
Choose which folder to play from USB
stick. Folder name on USB must be named
as image1 to image10