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#### Zooming images

You can zoom images in one of the following ways:

| • | Select a zoom option

| • | Use the mouse

| • | Match the region of interest (ROI) of all displayed images to the last selected image

| • | Use your own shortcuts to zoom images. To set up shortcuts, see Adding and modifying user shortcuts.

Note: You can also zoom images in a Zoom window and Survey window. For more information, see Displaying a series in a separate window.

Zoom options

The following table describes the available zoom options.

Zoom option | Meaning
Zoom in 50% | Zoom the images to 50% larger than the current size.
Zoom out 50% | Zoom the images to 50% smaller than the current size.
Zoom to Fit | Zoom the images to fit the viewport.
Life Size | Display the images at their true physical size. Note: This option is not available if the images do not contain a measurement scale, or the monitors are not calibrated for life size image display. See Calibrating the measurement scale and Calibrating monitors for life size image display.
50% | Display the images at 50% of the original image size.
100% | Display the images at the original image size.
200% | Display the images at 200% of the original image size.

Note: The 200% option is not available in the Zoom And Pan panel.

Selecting a zoom option

To zoom images by selecting a zoom option:

| 1. | Specify the zoom and pan scope. See Specifying the zoom and pan scope.

| 2. | Click the image you want to zoom.

| 3. | Click the Zoom icon on the main toolbar.

The Zoom And Pan panel is displayed.

| 4. | Select the zoom option. See Zoom options.

The images within the zoom and pan scope are zoomed accordingly.

Using the mouse

To use the mouse to zoom images:

| 1. | Click the image you want to zoom.

| 2. | Click the Zoom icon on the main toolbar.

The Zoom And Pan panel is displayed.

| 3. | Specify the zoom and pan scope. See Specifying the zoom and pan scope.

| 4. | Drag the mouse up and down.

| 5. | Release the left mouse button.

The images within the zoom and pan scope are zoomed accordingly.

Matching the ROI of all displayed images to the last selected image

If the last selected image contains spatial information, you can zoom all displayed images to match the ROI of the last selected image.

To match the ROI of all displayed images to the last selected image:

| 1. | Click the arrow beside the Zoom icon on the main toolbar.

| 2. | From the menu that is displayed, select Match ROI.

–or–

Instead of steps 1-2, right-click the last selected image, point to Zoom, and then select Match ROI.

Note: Whether the Zoom option is displayed on the right-click menu depends on your right-click preferences. See Right-click menu preferences.

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