Calibrating Monitors for True Size Image Display

Introduction

You can calibrate one imaging monitor to display true size images for all of the imaging monitors for a workstation. All of the imaging monitors must be the same make and model.

To display true size images, the physical dimensions of the display pixels, both vertically and horizontally, must be accurately defined. Because monitors are assumed not to have any gap between pixels, the pixel dimensions should be the same as the dimensions between the centers of adjacent pixels.

Prerequisite

Before attempting to calibrate your monitors, ensure that your browser and your operating system (OS) zoom factors are both set to 100%. If the zoom factor is not 100%, True Size is not available and images might be blurred.

Note:

Synapse displays an alert message if the browser zoom is not 100 percent when you initially open a study or resize a window.

Caution:

You should verify that horizontal and vertical measurements for the square are the same measurement. Otherwise, your monitor will display skewed images.
You must recalibrate your workstation if you do any of the following actions:

Change the video cards.
Change the display resolution of a monitor.
Replace your monitor with a monitor of a different make and model.
Move the Viewer window from one monitor to another monitor with a different resolution or different make and model.

You must enter the new calibration value for each combination of browser and Windows user.

Path

User Settings > Image Display > True Size Calibration

Steps

Verify that the browser zoom is at 100 percent. See Ensuring the Browser Zoom Factor is 100 Percent.
Follow the instructions on the True Size Calibration user setting page.
When you have finished configuring all settings, click Close to apply and save setting changes.

Results

Your monitor is calibrated for true size provided that you do not change the browser zoom or video configuration.