AW00123409000 FeaturesBasler ace USB 3.0 3177.18 Test ImagesAll cameras include the ability to generate test images. Test images are used to check the camera’sbasic functionality and its ability to transmit an image to the host computer. Test images can be usedfor service purposes and for failure diagnostics. For test images, the image is generated internallyby the camera’s logic and does not use the optics, the imaging sensor, or the ADC. Five test imagesare available for monochrome cameras and six test images for color cameras.The Effect of Camera Settings on Test ImagesWhen any of the test image is active, the camera’s analog features such as gain, black level, andexposure time have no effect on the images transmitted by the camera. For test images 1, 2, 3 and6, the cameras digital features, such as the luminance lookup table, will also have no effect on thetransmitted images. But for test images 4 and 5, the camera’s digital features will affect the imagestransmitted by the camera. This makes test images 4 and 5 a good way to check the effect of usinga digital feature such as the luminance lookup table.Enabling a Test ImageThe Test Image Selector is used to set the camera to output a test image. You can set the value ofthe Test Image Selector to one of the test images, e.g. to test image 1 (see below), for test image1, or to "off".You can set the Test Image Selector from within your application software by using the Basler pylonAPI. The following code snippets illustrate using the API to set the selector:// Set for no test imagecamera.TestImageSelector.SetValue(TestImageSelector_Off);// Set for the first test imagecamera.TestImageSelector.SetValue(TestImageSelector_Testimage1);You can also use the Basler pylon Viewer application to easily set the parameters.For more information about the pylon API and the pylon Viewer, see Section 3.1 on page 61.
