Basler Aviator Camera Link Installation And Setup Manual page 32

Adjusting Image Quality
Contrast:
Strong contrast in an image is obtained when objects of different brightnesses are represented by
very different grey values. For most applications, optimum contrast is achieved when the image
displays a wide range of gray values with fine detail remaining visible in the darkest and brightest
parts of an image. Some applications, however, may require extreme contrast.
You can increase the contrast in the image by increasing the camera's gain setting.
High black level settings will prevent high contrast.
Closing the lens aperture not only decreases image brightness but also increases contrast
towards the edges of an image.
If you must use a low level of illumination and this results in dark images, you may notice the
blurring influence of noise. If you operate the camera near the high end of its specified
temperature range, the effects may be particularly noticeable. You can increase contrast by
lowering the operating temperature of the camera.
Since increasing the gain will increase both signal and noise in equal proportion, increasing the
gain does not improve the signal-to-noise ratio.
26 Basler aviator Camera Link