Processing images

To convert an image to a different type

1.

From the Convert menu select the destination image type. The Convert dialog box will open.

2.

Select the desired number for the Output image.

3.

If you are converting to a high depth type, select the minimum and maximum limits for the output image's intensity range.

4.

Click Apply to perform the conversion.

To perform arithmetic or logical operations

1.

Click the Arithmetic/Logic button on the Processing toolbar.

2.

Select the desired tab and function in the Arithmetic/Logic dialog box.

3.

Select one or two Input images that will be used as operands for the chosen function.

4.

Select the desired number for the Output image.

5.

Depending on the function chosen, adjust the additional parameters for the operation.

6.

Click Apply to perform the operation.

To apply a filter to an image

1.

From the Edit menu select Preferences and click the Processing tab.

2.

Select the desired color space in the Processing space list box (Default space is recommended)

3.

Activate an image to be processed and define a selection area if needed.

4.

Click the Filters button on the Processing toolbar.

5.

Select the desired tab and function in the Filters dialog box.

6.

Select the desired number for the Output image.

7.

Depending on the function selected, adjust the additional parameters for the filter (click Help button to display a detailed description).

8.

As you adjust the options, watch the changes in the Preview window. Drag the preview to a new location in the image to see the result of the selected filter in different areas of the image.

9.

Click Apply to execute the filter and create the output image.

To threshold an image

1.

Click the Threshold button on the Processing toolbar. The Segmentation dialog will open.

2.

Select the desired number for the Output image.

3.

Check the Binary box to have ImageWarp create a binary image as a result of segmentation.

4.

Check the Invert box if you want to extract dark objects on the bright background or uncheck it if you want to extract bright objects on the dark background.

5.

Click the Manual sampling button on the dialog.

6.

Position the cursor over the area you want to define as the foreground and click the left mouse button. A color overlay will appear on the image allowing you to preview foreground pixels.

7.

Continue to click the objects of interests, adding new levels to the threshold range. If you want to undo your last action, click the Undo button on the Threshold dialog.

8.

If needed, adjust the minimum and maximum thresholds by moving the corresponding sliders located below and above to the luminance scale.

9.

Click Apply to execute the threshold and create the binary image.

To apply morphology operations to a binary image

1.

Convert your original image to a binary or multiphase one.

2.

Click the Morphology button on the Processing toolbar.

3.

Select the desired tab and function in the Morphology dialog box.

4.

Select the desired number for the Output image.

5.

Use Erosion to shrink objects, Dilation to enlarge objects, Opening to separate narrowly connected objects, Thinning to reduce objects to their skeletons.

6.

Use Fill holes to fill out the holes in objects, Border kill to remove the objects touching image boundaries, Scrap to erase the objects of a certain size, Link to connect broken lines.

7.

Depending on the function selected, adjust the additional parameters for the operation (click Help button to display a detailed description).

8.

Click Apply to execute the operator and create the output image.