Watec WAT-01U2 User manual

Watec USB Camera
User’s Manual
Rev. 3.10
Watec Co., Ltd.
December 1, 2021

2
Revision Record
Rev.
Date
Changes
Remarks
1.00
August 28, 2013
－
Initial Release
2.00
－
－
3.00
August 29, 2016
・Correction to “Watec USB Camera”of The title
・Add WAT-02U2D and WAT-03U2
・Add 5. Operation on Mac OS
3.01
April 17, 2017
・Add WAT-03U2D
3.02
September 5, 2018
・Add WAT-05U2M
3.03
April 1, 2020
・Add Zoom function
3.10
December 1, 2021
・Add WAT-06U2, WAT-07U2,
WAT-06U2D and WAT-07U2D

3
Table of Contents
Table of Contents -----------------------------------------------------------------------------------------------------------------3
1. About this User’s Manual ------------------------------------------------------------------------------------------------4
2. Connecting the Watec USB Camera with a PC---------------------------------------------------------------------5
3. Functions and Settings ---------------------------------------------------------------------------------------------------6
3.1. Preview------------------------------------------------------------------------------------------------------------------------- 7
3.2. Video Capture Pin ---------------------------------------------------------------------------------------------------------- 8
3.2.1. Color Space/Compression (Compression Mode) -------------------------------------------------------------- 9
3.2.2. Output Size (Image Size)-------------------------------------------------------------------------------------------- 9
3.2.3. Frame Rate------------------------------------------------------------------------------------------------------------ 10
3.3. Video Capture Filter Image Adjustment (Video Proc Amp) -------------------------------------------------- 13
3.3.1. Brightness ------------------------------------------------------------------------------------------------------------- 14
3.3.2. Contrast ---------------------------------------------------------------------------------------------------------------- 14
3.3.3. Hue ---------------------------------------------------------------------------------------------------------------------- 15
3.3.4. Saturation ------------------------------------------------------------------------------------------------------------- 16
3.3.5. Sharpness-------------------------------------------------------------------------------------------------------------- 17
3.3.6. Gamma ----------------------------------------------------------------------------------------------------------------- 18
3.3.7. White Balance -------------------------------------------------------------------------------------------------------- 19
3.3.8. Backlight Compensation ------------------------------------------------------------------------------------------ 20
3.3.9. Gain --------------------------------------------------------------------------------------------------------------------- 21
3.3.10. PowerLine Frequency(Anti Flicker)-------------------------------------------------------------------------- 22
3.4. Video Capture Filter Camera Control ------------------------------------------------------------------------------ 23
3.4.1. Zoom--------------------------------------------------------------------------------------------------------------------- 24
3.4.2. Exposure (Shutter)-------------------------------------------------------------------------------------------------- 25
3.4.3. Low Light Compensation (SlowShutter) --------------------------------------------------------------------- 27
3.5. Camera Control------------------------------------------------------------------------------------------------------------ 27
3.5.1. Sensor Sense ---------------------------------------------------------------------------------------------------------- 27
4. GPIO Connection --------------------------------------------------------------------------------------------------------- 28
4.1. Snapshot Function-------------------------------------------------------------------------------------------------------- 28
4.1.1. Method to Confirm Operation (saving of static image)------------------------------------------------------ 28
4.1.2. Image File Setting------------------------------------------------------------------------------------------------------ 29
4.1.2.1. Color Space/Compression (CompressionMode)----------------------------------------------------------- 30
4.1.2.2. Output Size (ImageSize) ---------------------------------------------------------------------------------------- 30
5. Remarks: Operation on Mac OS X -------------------------------------------------------------------------------------- 31
6. Remarks: Operation on Android OS------------------------------------------------------------------------------------ 31

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1. About this User’s Manual
This User’s Manual consists of instructions to connect the WAT-01U2 / WAT-02U2D / WAT-03U2 /
WAT-03U2D / WAT-05U2M / WAT-06U2 / WAT-07U2 / WAT-06U2D / WAT-07U2D (the following is the
Watec USB Camera) to a PC and describes and explains the settings for the Video Capture Pin/Video
Capture Filter and describes the Snapshot feature which utilizes the GPIO connection of the WAT-01U2
/ WAT-03U2 / WAT-06U2 / WAT-07U2.
When the settings of the Watec USB Camera is changed according to the Watec USB Camera user’s
manual, check to see that the operation and the effects of the changes made to the camera are
acceptable.
The Watec USB Camera user’s manual is subject to change by design and the specifications of the
product without notice.
The copyright of the Watec USB Camera user’s manual shall belong to Watec Co., Ltd. Copying in
whole or in part without the authorization of the holders permission is prohibited.

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2. Connecting the Watec USB Camera with a PC
The diagram below shows the connections between the Watec USB Camera and a PC. Please use a
conversion connector separately according to the USB port of the PC to which the camera is connected.
Fig.1 Watec USB Camera –PC Connection Example
It is recommended to use a PC with a USB 2.0 port and a Windows 10 32 / 64bit or later OS installed.
The Watec USB Camera is compatible with USB Video Class.
When the Watec USB Camera is connected to a PC for the first time, the driver will be installed
automatically. If the driver installation does not occur, and the Watec USB Camera is not recognized by
the PC, please check to make sure that the connection is correct, and please check that the PC
requirements are met.
It is possible to acquire videos on a PC with an OS of XP or earlier, but some functions are limited.
Please refer to Section 3 “Functions and Settings” for details.
Please connect the camera to the PC, and after confirming that the camera is recognized, please start the
viewer software and begin the Preview/Capture of video.

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3. Functions and Settings
The Watec USB Camera settings are separated into Video Capture Pin, which is used to set the output
image size, and the Video Capture Filter, which is used to set the image brightness and color.
This section explains each of the functions of the Watec USB Camera and their respective setting methods
using the WatecCameraViewer (Watec USB Camera Capture Software which can be downloaded from our
company’s website, http://www.watec.co.jp/ ) as an example.
(For details on how to install the software, please refer to the readme.txt file included with the
WatecCameraViewer software.)
Fig.2 WatecCameraViewer Window

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3.1.Preview
Please operate the menu at the top of the window to output an image on the window.
1. Selection of the device
The list of connected devices is shown when the “Devices” is clicked.
Please select the camera that outputs the image.
2. Start of preview
Please click the “Options -> Preview”.
Then the preview begins.

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3.2.Video Capture Pin
The Color Space and Video Format can be set in the Video Capture Pin. The setting can be
accessed from the menu at the top of the window (Options -> Video Capture Pin).
Fig.3 Video Capture Pin Window
The same setting is accessible from the Panels -> Camera Control menu at the top of the window.
Fig.4 Camera Control Window

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3.2.1.Color Space/Compression (Compression Mode)
Can be selected from YUY2 and MJPG.
YUY2: Uncompressed video output using YUY2(YUV422) format as Color Space.
The resolution is higher than MJPG, however, the frame rate is limited as described in the
later section.
MJPG: Output video is compressed with MJPG(Motion-JPEG) format. The resolution will
decrease, however, the frame rate will be maintained even at the maximum image size.
3.2.2.Output Size (Image Size)
The video image output size of the WAT-01U2 / WAT-02U2D is selected from the following 8
selections.
Image size (H x V)
Aspect Ratio
No. of Pixels
Resolution *
1920 x 1080
16:9
2,073,600
FHD, 1080p
160 x 120
4:3
19,200
Quarter-Quarter-VGA
176 x 144
11:9
25,344
Quarter-CIF
320 x 240
4:3
76,800
Quarter-VGA
640 x 480
4:3
307,200
VGA
1280 x 1024
5:4
1,310,720
SXGA
1280 x 720
16:9
921,600
HD, 720p
1280 x 800
16:10
1,024,000
WXGA
The video image output size of the WAT-03U2 / WAT-03U2D is selected from the following 4
selections.
Image size (H x V)
Aspect Ratio
No. of Pixels
Resolution *
1280 x 960
4:3
1,228,800
Quad-VGA
320 x 240
4:3
76,800
Quarter-VGA
640 x 480
4:3
307,200
VGA
1280 x 720
16:9
921,600
HD 720p
The video image output size of the WAT-05U2M / WAT-06U2 / WAT-6U2D / WAT-7U2 /
WAT-07U2D is selected from the following 4 selections.
Image size (H x V)
Aspect Ratio
No. of Pixels
Resolution *
1920 x 1080
16:9
2,073,600
FHD 1080p
320 x 240
4:3
76,800
Quarter-VGA
640 x 480
4:3
307,200
VGA
1280 x 720
16:9
921,600
HD 720p
*Resolution :
VGA : Video Graphics Array
SXGA : Super-XGA
WXGA : Wide-XGA

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3.2.3.Frame Rate
The frame rate will be fixed by the Color Space/Compression mode and image size settings.
The frame rate of WAT-01U2 / WAT-02U2D is as follows.
Color Space/
Compression
Image Size
Frame Rate (fps) *
YUY2
1920 x 1080
5
160 x 120
30
176 x 144
30
320 x 240
30
640 x 480
30
1280 x 1024
7.5
1280 x 720
10
1280 x 800
10
MJPG
1920 x 1080
30
160 x 120
30
176 x 144
30
320 x 240
30
640 x 480
30
1280 x 1024
30
1280 x 720
30
1280 x 800
30
The frame rate of WAT-03U2 / WAT-03U2D is as follows.
Color Space/
Compression
Image Size
Frame Rate (fps) *
YUY2
1280 x 960
7.5
320 x 240
30
640 x 480
30
1280 x 720
7.5
MJPG
1280 x 960
30
320 x 240
60
30
640 x 480
60
30
1280 x 720
30

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The frame rate of WAT-05U2M / WAT-06U2 / WAT-07U2 / WAT-06U2D / WAT-07U2D is as
follows.
Color Space/
Compression
Image Size
Frame Rate (fps) *
YUY2
1920 x 1080
5
320 x 240
30
15
640 x 480
30
15
1280 x 720
7.5
MJPG
1920 x 1080
30
15
320 x 240
30
15
640 x 480
30
15
1280 x 720
30
15
*fps: Frames per Second, the number of frames processed per second in a video image,
the higher frame rates produce smoother, more fluid video.

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On the WAT-03U2 / WAT-03U2D, the frame rate is selectable from 30fps or 60fps when the
MJPG is set with 320x240 or 640x480.
It cuts and outputs a read area from the image sensor when 60fps is selected. In order to cut and
output the central part of the screen, the angle of view is different from other frame rates.
1280×960(30fps) 640×480(30fps)
640×480(60fps)
On the WAT-03U2 / WAT-03U2D / WAT-05U2M / WAT-06U2 / WAT-07U2 / WAT-06U2D /
WAT-07U2D, please note that the “Use Frame Rate” (Capture -> Set Frame Rate…) setting
differs depending on frame rate selection methods.
Choose “OFF” when selecting the frame rate from the “Video Capture Pin”. Choose “ON” when
selecting the frame rate from “Camera Control”.
Fig.5 Set Frame Rate Window

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3.3.Video Capture Filter Image Adjustment (Video Proc Amp)
The functions can be adjusted. The setting is accessed by selecting the Options -> Video Capture
Filter from the menus at the top.
Fig.6 Video Capture Filter Video Proc Amp window
The same setting is accessible from the Panels -> Camera Control menu at the top of the window.
Fig.7 Camera Control window

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3.3.1.Brightness
Increasing the value will increase the image brightness.
Brightness@-128 Brightness@0 Brightness@127
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
-127
128
0
WAT-03U2 / WAT-03U2D
10
WAT-05U2M / WAT-06U2 /
WAT-06U2D / WAT-07U2 /
WAT-07U2D
30
3.3.2.Contrast
Increasing the value will increase the contrast
Contrast@0 Contrast@85 Contrast@255
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
0
255
85
WAT-03U2 / WAT-03U2D
95
WAT-05U2M / WAT-06U2 /
WAT-06U2D / WAT-07U2 /
WAT-07U2D
64

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3.3.3.Hue
The image hue can be adjusted.
The hue is varied so as to change in a hue circle and will have same hue at “±40”.
Hue@0
Hue@-20 Hue@20
Hue@±40
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
WAT-03U2 / WAT-03U2D
WAT-05U2M / WAT-06U2 /
WAT-06U2D
-40
+40
0
*Since the WAT-07U2 / WAT-07U2D is a monochrome camera, so this setting item is not available.

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3.3.4.Saturation
Increase in this value increases the color saturation of the image.
Saturation@0 Saturation@94 Saturation@255
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
0
255
94
WAT-03U2 / WAT-03U2D
100
WAT-05U2M / WAT-06U2 /
WAT-06U2D
80
*Since the WAT-07U2 / WAT-07U2D is a monochrome camera, so this setting item is not available.

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3.3.5.Sharpness
Increase in this value will emphasize the edges of inside the image and increase the Sharpness.
Sharpness@0 Sharpness@4
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
WAT-03U2 / WAT-03U2D
WAT-05U2M / WAT-06U2 /
WAT-06U2D / WAT-07U2 /
WAT-07U2D
0
4
1

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3.3.6.Gamma
The function is for the adjustment of the gradation characteristics curve of the image to
compensate for the Gamma characteristics (image gradation response characteristics) of the
display.
Gamma@48 Gamma@100 Gamma@300
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
WAT-03U2 / WAT-03U2D
WAT-05U2M / WAT-06U2 /
WAT-06U2D / WAT-07U2 /
WAT-07U2D
48
300
100

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3.3.7.White Balance
The White Balance function is used to calibrate “white”color under varying color temperature
lighting conditions.
Default: “auto”. The default value in manual adjustment mode is “4600”.
The White Balance of the image will be optimally adjusted per the value selected for the
particular color temperature environment.
When Auto is “ON”, the camera will automatically adjust the White Balance by judging the
lighting conditions in the image being shot.
Auto White Balance Manual White Balance@4600
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
WAT-03U2 / WAT-03U2D
WAT-05U2M / WAT-06U2 /
WAT-06U2D
2800
6500
Auto (4600)
*Since the WAT-07U2 / WAT-07U2D is a monochrome camera, so this setting item is not available.

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3.3.8.Backlight Compensation
The Backlight Compensation function adjusts the exposure of the center of the image to
compensate for the dark shadow created due to lighting from the back of the object.
”0”(Backlight Compensation OFF) or “1”(Backlight Compensation ON) can be selected.
Backlight Compensation OFF Backlight Compensation ON
*The pictures were taken by WAT-01U2.
Camera
Minimum
Maximum
Default
WAT-01U2 / WAT-02U2D
WAT-03U2 / WAT-03U2D
WAT-05U2M / WAT-06U2 /
WAT-06U2D / WAT-07U2 /
WAT-07U2D
0
1
0 (OFF)