Microstructure of 19th Century ìStippleî Engraving

Grays can be simulated using just dots of ink as well.

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Notes:

Image makers learned to control the microstructure of their dots and lines to control the appearance of their images. Today we would call this pattern of dots a ìstochastic halftoneî, but a hundred years ago it was called ìStipple engravingî. Today, a maj

So by the end of the 19th century, images could be captured by cameras of by the hand and eye of a skilled craftsman. Moreover, the images could be sent as hardcopy prints or transmitted electronically over telegraph wires. Wireless transmission of text a

The emergence of photography and electronic image technology also induced the development of new ways to use images.