Stereo Scan 440 - DCU

1.4. Derivative
Introduction
This Option allows an image to be enhanced by mixing it with the derivative of
itself. This has the effect of highlighting vertical surface detail and edges within
the image.
Operation
Selection
Derivative is selected from the GammalDiff option of the Image menu. This
brings up the Gamrna/Diff panel from which the derivative mixing can be
controlled.
Controls
The derivative value is adjusted using the slider bar on the Gamma/Diff panel. It
is also possible to enter the exact value by double clicking on the derivative value
on the Gamma/Diff panel.
1.5.
Dual Magnification
Introduction
This option allows a zoomed image to be displayed in split screen mode without
having to freeze the image at the base magnification.
Operation
Selection
Dual Magnification can be selected from the Scanning menu or Dual
Magnification icon in the Expert Toolbar.
Controls
When Dual Magnification is selected. the left band image is enclosed by a green
boarder which can be sized in the same way as a normal Window~ panel. The
right hand image displays the area of the specimen enclosed by the box on the left
hand image. Thus the zoom factor is detennined by the size of the box.
Stereoscan 440 Operator Manual