Expressed in resolution (dpi) or (ppi) are pixels per unit
length, ie pixels per inch and the inch measured 2.54 cm.
The resolution defines the number of pixels that contains an
image and the size of these pixels express in that way spread in space.
The resolution in the relationship between digital and
physical dimensions, ie which will once printed on paper.
To calculate the size in pixels in size in centimeters for
printing, we can apply the following formula:
* Print size = Number of pixels / resolution (pixels per
Inch).
There are different resolutions depending we want to do with
the image use either:
- Images for display on computer screen or hang on Internet
72dpi
- Images for imprimnir: at least 150 dpi, but 300 dpi is
recommended since they give optimal results
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