On this tab, you can configure the settings of the hot pixel correction for your uEye camera.

Fig. 181: uEye Demo - Hotpixel

Hotpixel Correction

This function corrects the sensor hot pixels specified in the non-volatile camera memory.

•Hotpixel correction
If you select this check box, the hot pixels are corrected. The following modes are selectable:

oCamera hotpixel correction
Enables hot pixel correction using the hot pixel list(s) stored in the non-volatile camera memory.

oSensor hotpixel correction
Enables the sensor's internal hot pixel correction for some models.

oUser hotpixel correction (software)
Enables hot pixel correction using the user's hot pixel list stored in the computer (see is_Hotpixel()).

•Mark hotpixels
If you select this check box, the hot pixel positions stored in the camera are graphically represented in the image.

•Adaptive hotpixel correction
Enables the adaptive hot pixel correction. The further settings are applied in the "Adaptive Hotpixel Correction" area.

Adaptive Hotpixel Correction

The adaptive hot pixel correction can determine hot pixels dynamically and correct them adaptively in the current image. Thus, hot pixels can be corrected better which, for example, result from an increased temperature. In addition, the adaptive hot pixel correction can be executed directly in live operation, thus permitting the best possible optimization on the application conditions.

•Mode
The following modes are distinguished for the adaptive hot pixel correction:

o"detect once": The hot pixels are determined once and stored in a list. The adaptive hot pixel correction works with this list. This mode is suitable for all applications with static light conditions which do not require dynamic adaptation.

o"detect dynamic": The hot pixel list is dynamically determined for each image. So, this allows a better response for changing light conditions. In this mode, the full frame rate may not be achieved.

•Detect again
Resets the hot pixel list and determines it with the next image. This command has only an effect in combination with the "detect once". setting.

•Sensitivity
Sets the value for the sensitivity of the adaptive hot pixel correction: 1 (lowest sensitivity) … 5 (maximum sensitivity)

•Detected pixels
Returns the percentage of corrected hot pixels in the last image. If the hot pixels are determined once the value will not change until the next determination. For dynamic determination, the value may change with each image.

Hint for adaptive hot pixel correction If the hot pixels are determined once, you should deactivate LUT, gamma, and RGB gains for detection. For dynamic detection, the use of LUT, gamma, and RGB gains may cause too many hot pixels to be determined and corrected. This can cause a high CPU load.