OKI 9400 Manual De Usuario
Halftoning
Shades of gray can be generated by using a similar method of black dot placement. This
technique is known as halftoning and gives rise to what we perceive as a continuous tone
image.
technique is known as halftoning and gives rise to what we perceive as a continuous tone
image.
The entire printing area is split into sections known as cells (much like a grid). The patterns
within the cell are then altered to obtain the required amount of grayscale. An area of an image
containing 50% gray will contain cells that have half of the dots within the cell printed with black
and the other half left empty.
within the cell are then altered to obtain the required amount of grayscale. An area of an image
containing 50% gray will contain cells that have half of the dots within the cell printed with black
and the other half left empty.
The Electromagnetic Spectrum
Visible Light
Visible light comprises a minute portion of the electromagnetic (EM) spectrum. Although we are
"blind" to the rest of the EM spectrum, the part we do see has a significant impact on our
"blind" to the rest of the EM spectrum, the part we do see has a significant impact on our
338