The Background substraction correction is a simple operation you can active when a detector has some dark-current noise independent of the dose of photons it will receive. To set the correction you must provide to the device a background image file (setBackgroundImage command) and then start the correction (start command). Instead of providing an external image file you can simply ask the device to use an image taken. Call the command takeNextAcquistionAsBackground to set the internal background image from an acquisition image. One can apply an extra offset correction using the offset attribute value.
This device has no property.
|delete_dark_after_read||rw||DevBoolean||If true the device will delete the file after reading Can be useful to not keep obsolete dark image file after use|
|offset||rw||DevLong||Set a offset level to be applied in addition to the background correction|
|RunLevel||rw||DevLong||Run level in the processing chain, from 0 to N|
|State||ro||State||OFF or ON (stopped or started)|
|Status||ro||DevString||“OFF” “ON” (stopped or started)|
|Command name||Arg. in||Arg. out||Description|
|Init||DevVoid||DevVoid||Do not use|
|setBackgroundImage||DevString||DevVoid||Full path of background image file|
|Start||DevVoid||DevVoid||Start the correction for next image|
|State||DevVoid||DevLong||Return the device state|
|Status||DevVoid||DevString||Return the device state as a string|
|Stop||DevVoid||DevVoid||Stop the correction after the next image|
|takeNextAcquisitionAsBackground||DevVoid||DevVoid||next taken image will replace the background|