Image Source Configuration Bar
In this chapter, you will learn which setting options you have in the Configuration Bar of the Image Source.
In the Configuration Bar you can make all kinds of settings for your image. You can change these settings at any time regardless of your stream’s activity. To have a better overview of the setting options, you can show and hide the individual sub-items at any time.
In the image capture settings you can choose between the four different capture modes: Manual, Free Run, Hardware and Remote. In addition, settings can be made for the exposure mode, exposure time and frame rate. Depending on the mode, there are further setting options.
Mode 1: Manual
Manual mode is set by default. In this mode, you can manually capture an image using the yellow center button in the Image Source Control Bar.
For the exposure mode, you can select either continuous or off. If you set the exposure mode to continuous, the camera permanently adjusts the exposure to the external conditions. If you set it to Off, you can set the exposure time manually.
When the exposure mode is set to Off, you can select an exposure time between 68 and 2300000 microseconds. This determines how long the camera allows light to reach the sensor while the image is being captured. The longer the exposure time, the more light and the brighter the image will be in the end. If you see a black image on the first exposure, it is often because the exposure time is set too low.
Acqusition Frame Rate enable
Here you can decide whether you want to activate the Acquisition frame rate or not.
Acqusition Frame Rate
If you have activated the Acquisition Frame Rate, you can select a value between 2 and 255.9 here. This limits the frame rate of your camera.
Mode 2: Free Run
Your pictures are taken continuously in Free Run mode. Here you have the same setting options as in Manual mode and one more.
You can select a frame rate between 1 and 30 fps. This is the number of pictures your camera takes per minute. The higher the frame rate, the more images are captured. A frame rate that is too high can affect performance.
Mode 3: Hardware
In hardware mode, a hardware trigger via the trigger pin of your smart camera’s docker connector triggers the recording. Three additional settings are added to the already known settings from the Manual mode.
For Delay you can set a value between 0 and 5000 milliseconds. Depending on the input value, image acquisition is delayed after the trigger.
You can select a value between 0 and 1000 for the bouncing time. This is the time to wait after a trigger before reacting to a trigger again. In this way, it can be avoided that several shots are taken in between due to faulty triggers.
Here you can set whether the image should be captured as soon as the trigger is released (rising) or as soon as the trigger is no longer perceptible (falling).
Mode 4: Remote
With the remote mode you can also capture the images manually, but not via the web interface, but via the http-rest interface. The setting options are the same as for the Manual mode.
3. auto function
Under the Auto Function subitem, you can make various settings that are already taken into account by the image sensor during acquisition.
Here the gain can be adjusted automatically to achieve a certain brightness. With the gain function you can amplify the sensor signal and thus brighten up your image. If you want to set gain manually, select Off. The gain parameter appears. If you set Gain Auto to continuous , the gain value adjusts to the external conditions.
Enter a value between 0 and 33.06 to make your image brighter. All pixel values on the image are amplified when the gain is increased.
Gain value 0
Gain value 7
With this parameter you can adjust the gamma value. The values can range from 0.13 to 3. This allows you to optimize the image brightness for display on a monitor.
Gamma value 2
Gamma value 0.45
This setting allows you to manually apply a color shift for white balance. White objects should appear white.
The anti-flicker setting allows you to combat streaking that may occur due to lighting. The different setting options determine the frequency.
For this parameter, the so-called S-curve is selected by default. This will increase the contrast of your image. With the S-curve, lighter tones are lightened further and darker ones are darkened further to obtain a high-contrast image.
Here you can adjust the brightness. If you select a negative value, the image becomes darker. If you select a positive value, brighter.
Adaptive Tone Mapping
Here you can switch the Adaptive Tone Mapping of the image sensor on or off. The goal of tone mapping is to reduce the contrast range of images so that they can be displayed on conventional output devices.
Under the Color sub-item you can make various adjustments to the color settings of your image.
Here you can select Color or Mono as pixel format. The pixel format determines how the individual pixels are structured and how the image data is displayed.
Here you can decide whether you want an sRGB color space or not. sRGB stands for Standard RGB and is the typical color space for graphics on the web. It makes sense to select the sRGB color space if the image brightness is to be optimized for display on a monitor.
Here you can set which of the color channels red, green or blue should be displayed.
Under this item you can adjust the focus manually. To do this, select a value between 0 and 255. This parameter is only relevant if a liquid lens is installed in your evoVIU. Then you can focus your object here.
Select a value between 0 and 255 here to adjust the focus and thus bring your image into sharp focus.
Focal length 77
Focal length 217
5. image format
Under the item Image Format you can set the number of pixels and accordingly the resolution of your image. You can set your desired width as well as the width, X offset and Y offset. The choice of image format also affects the performance of the interface.
Here you set the width of your image.
Here you set the height of your image.
Here you can move your image on the X-axis to get the desired image section.
Here you can move your image on the Y-axis to get the desired image section.
Click on Center to center all the above settings.
Here you can see with which pixel format output pixels are formatted. The pixel format determines how the individual pixels are structured and how the image data is displayed.
The Scaling parameter allows you to scale images from the sensor size to your image ROI.
If you have processed your image with the Scaling parameter, you can increase the sharpness with the Sharpness Enhancement. To do this, you can select a value between 0 and 1. The higher the value, the sharper the image.
6. IO controller
Under this menu item you can set your IO controller to use external light.
IO Controller Connection
Here you can select your IO-Controller Connection. You must configure these beforehand under the Connections menu item.
Use IO controller
Select here whether the IO controller is to be used or not.
7. LED Area
Under the menu item LED Area you can control the light of your evoVIU. The displayed boxes correspond to the individual LEDs. As soon as you select it, another settings level opens.
Here you can now select which LED you want to switch on in the upper right corner. After the click, they turn yellow.
Set the intensity of the lights here. The higher the value, the brighter the LEDs shine.
Select whether the LEDs should light up permanently or flash.
Under this menu item, presettings for image processing can be made.
Select how you want your picture to be taken here. You have the choice between Simple, Image Fusion and Double Shot.
- Simple: The image is captured depending on the selected capture mode.
- Double Shot: Two images are taken from two different sides and fused together.
- Image Fusion: Four images are taken from the four sides and fused together to create a depth image.