======= ASI Stable Stage =======

The ''ASI Stable Stage'' plugin can measure and correct thermal drift.

Requirements: ''Micro-Manager 2.0''

Optional: ''CRISP'' or ''Autofocus3'' (Note: ''Autofocus3'' integration coming soon)

Send an email to ''brandon@asiimaging.com'' if you're interested in the plugin.

==== Controls ====

{{:stablestage_maintab.png?direct|}}

**Main Tab:**

**1) Run Forever:** Check this box if you would like to run the test indefinitely in ''Drift Measurement'' or ''Stage Stabilization'' mode.

**2) Test Length:** If you're not running the test indefinitely, then you can specify the number of minutes you would like the test to run.

**3) Drift Error:** The amount of drift in microns required for ''Stage Stabilization'' to attempt to correct the XY stage position.

**4) Max Move:** The maximum amount that ''Stage Stabilization'' will move the stage in microns.

**5) Phase Correlation:** Which phase correlation algorithm to use for ''Stage Stabilization''.

**6) Autofocus Device:** Which autofocus device to use for ''Stage Stabilization''. Select ''None'' if no device available.

**7) XY Moves:** Invert the computed shift values in either the X or Y axes.

**8) XY Gain:** A multiplier to adjust the computed shift value.


{{:stablestage_cameratab.png?direct|}}

**Camera Tab:**

**1) Show Images:** Check this box to show the phase correlation comparison images while running the test.

**2) Keep Shutter Open:** Keep the cameras shutter open during the test.

**3) Capture Delay:** The number of milliseconds to delay between each phase correlation comparison test.

**4) Downsample Factor:** The amount to downscale the camera images, this can increase performance significantly. 

**5) Apply Gaussian Blur:** Apply a blur filter to the captured images, this setting is recommended.

**6) Blur Amount:** The amount of blur to apply to the images, the standard deviation of the Gaussian filter.

**7) Use Background Subtraction:** Check this box if you want to use background subtraction.

**8) Snap Background Image:** Snaps an image to use as the background subtraction image.

**9) View Background Image:** Opens a frame to view the captured background subtraction image.


{{:stablestage_datatab.png?direct|}}

**Data Tab:**

**1) Save Directory:** The directory to save the images into.

**2) File Name:** The file name prefix to save the logging data.

**3) Logging:** Check these boxes to log information about XY moves and Z moves.

**4) Save Images:** Check this box to save images into the save directory.

**5) Save Type:** The criteria for saving images, the spinners below control the options for save types.

**6) Save Every N Images:** This is always save the first image, and then every N images afterward.

**7) Move Threshold:** Save the test image a move command above a certain threshold is sent to the controller.

**8) Correlation Threshold:** Save the test image if the correlation coefficient of the comparison is below this threshold. 

**9) Limit Save Data:** The maximum amount of image data to save in a test run in gigabytes.

{{tag> software auto_track}}