The technique, known as morphing, merges two images slowly, giving the effect of a smooth metamorphosis from one image to the other.

Her footsteps receded in the distance for a long time, merging slowly into the sound of ocean waves.

As the beams began to slowly merge, his worst fears were realized.

Small local departments slowly merged to form large departments in the 1960s and 1970s.

The team slowly merged into the crowd.

It's intricate patterns are slowly merging with the complex dance of Wintermute's glowing surface.

Under his guidance the two societies slowly merged.

The double image slowly merged into one and then separated again.

Even the shadows of the two people on the royal balcony slowly merged into one.

In the 1950s and 1960s, population and development increased, and the coastal towns slowly merged into a single urban area.