Title Bar

Every image opened in the multidocument work environment has a title bar.

 Some important information is displayed in the title bar:

1. Current zoom value
   0.728x indicates in this case the current Zoom value. The system keeps itself calibrated when the zoom changes. By selecting another image, even with a different zoom value, the system will always remain correctly calibrated.

2. Current objective
   20x was the objective being used at the moment of saving the image: it is not the objective currently being used in the system.
   When the symbol ?x is shown, it means that the image is without any calibration and therefore the system is using the calibration for the current objective.
   
   If an image is saved with a 30x objective, when it is reloaded the 30x value will still be displayed in the title bar independently of the value of the current objective. The calibration of a saved image has priority over the calibration of the current objective.

3. Address, name and format of the image

4. Identification number
   I=001 is the image identification number and is attributed by the system when the image is loaded.
   The identification number is necessary using the filters operating on pairs of images.
   If the computer has enough RAM memory the system can manage up to 499 images open at the same time.

The system requires three times the memory which each single open image requires:

1. open image (visible);

2. temporary processing image (hidden);

3. image for restoring  the original image (hidden).

The memory occupied by an open image depends only on the horizontal and vertical dimension in pixels and on the color depth. It is independent of the format (for example, BMP or JPG), which instead affects the stored file.