You are here: NanoScope Software User Guide > Offline Commands > Modify Commands > Clean Image

Clean Image

The Clean Image command is used to smooth noisy image data within the cursor box you specify. The Spike cutoff and Streak cutoff commands define sigma cutoffs for spikes and streaks, respectively. Data points lying beyond the mean ± designated sigma values (σ) are replaced with the mean data value.

Figure 1: Cutoff Values Depiction

Clean Image Procedure

 
  1. You can open the Clean Image view, shown in Figure 3, using one of the following methods: 
  • Right-click on the image name in the Workspace and select Add View > Clean Image from the popup menu. See Figure 2.

Figure 2: Select Clean Image from the Workspace 

 

Or

  • Right-click on a thumbnail in the Multiple Channel window and select Clean Image.

Or

  • Select Modify > Clean Image from the menu bar.

Or

Click the Clean Image icon in the toolbar.
 

A separate window opens, also displaying the image. Right-click in the image to display the Clean Image options menu (see Figure 3).

Figure 3: Clean Image Window

 
  1. Click and drag in the image to define a box.
  2. Configure the Input parameters.
  3. Click Execute to perform the operation.
 

To restore the unprocessed image, click the Reload button.
 

Figure 4 shows the image of Figure 3 after a clean operation with Spike and Streak cutoff both set to 0.5σ.

 

Figure 4: Image of Figure 3 after a 0.5σ clean operation

Clean Image Interface

Parameter Description

Remove Spikes

Settings:

  • On—Enables the Spike cut off value and applies it to data within the cursor box you specify.
  • Off—Disables the Spike cut off value.

Remove Streaks

Settings:

  • On—Enables the Streak cut off value and applies it to data within the cursor box you specify.
  • Off—Disables the Streak cut off value.

Spike Cutoff

Number of sigma values to use as the cut off point for spike data. Data points lying outside the mean ± Spike cut off sigma value(s) are replaced by the mean data value.

Range:

  • 0 to 10

Streak Cutoff

Number of sigma values to use as the cut off point for streak data. Data points lying outside the mean ± Streak cut off sigma value(s) are replaced by the mean data value.

Range:

  • 0 to 10

Output File Name

Select the path of the extracted image file. Leave blank for immediate view/use without saving the altered image file.

Write File Upon Execute

Writes the output file(s) when the Execute button is clicked.

Table 1: Clean Image Parameters

Parameter Description

Execute

Initiates the Clean Image command.

Reload

Restores the image to its original form by reloading the original file.

Table 2: Buttons on the Clean Image Panel

 

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