Why do newspapers have these four dots ?

Do you know what is common in Times of India , The Hindu , Indian Express everyday ? Not the news but these color dots called color bars. Let's Find the Reason behind it.

Cyan, Yellow, Magenta and Black are the four basic colors of print medium , hence the colors mix to help us to see whether our Prime minister is wearing a orange or white dress.

First of all the digital image of the Newspaper in RGB ( Red Green Blue ) form gets converted into CMYK ( Cyan Yellow Magenta Key - Black ) form and the gets printed first in cyan and then overlapped by magenta and then by yellow and black.

In a traditional printing factor more than 50 thousand papers are produced per hour, so it is difficult to check them manually.

Here comes the four dots for the rescue helping in color reproduction and color alignment thereby clarifying whether ink density and flow is correct by just a scan by a sensor.

So whether the news has content or useful information or not it should have these four dots.

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