Transparency of slices

In order to view the slice below the open slice and detect misalignments, change the level of transparency operating the transparency bar from the Toolbar. As shown in Figure 1, the transparency bar appears on the right of the Toolbar when the Slice Alignment Tool  is active.

Figure 1: Transparency bar appears on the right of the Toolbar.

The transparency ranges from 0% (the knob on left extreme) which means that the slice is completely opaque,  to 100% (knob on the right extreme) which means that the slice is completely transparent. An intermediate value is obviously the best  way to visualize both slices as shown in Figure 2.

Figure 2: Use of transparency bar for visualizing consecutive slices simultaneously.

Remark: All registration operations such as translation and rotation of slices can be performed with any level of transparency.

Tip: Show contours of objects that span both slices and make the slice completely transparent. There appears the contours of the open slice drawn over the slice below it, which may be very helpful for detecting misalignments. See Figure 3.

 

Figure 3: Contours of a slice drawn over the slice below it.