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Re: filmscanners: pixels, printer dots, etc


With a printer you never get to directly specify the number of dots 
it uses to print an image.  Rather the print driver will decide how 
many dots to use based upon the image you give it.  In your example 
the image specifies that each pixel should print such that it 
occupies a square 1/5 of an inch on a side so that's what the printer 
will give you (as measured by a ruler on the paper) using as many 
dots as it needs to accomplish this.


At 9:38 AM -0800 13-11-01, Ken Durling wrote:
>Ok, I have I think I simple question, stemming out of my study of
>Wayne Fulton's scanning tips.  Just getting clear, so forgive me if
>it's a stupid question.
>On page 67 of that book he shows a tiny 32 pixel image scaled to 5
>dpi.  It's printed as a 6.4 inch graphic with pixels that are,
>obviously, 1/5 inch in size.  My question is, what does this say about
>print resolution?  The printer is obviously using a certain number of
>dots to produce one pixel.  Is this number of dots specified simply by
>selecting the print resolution in the printer driver menu? 
>Ken Durling
>Photo.net portfolio:


Bill Fernandez  *  User Interface Architect  *  Bill Fernandez Design

(505) 346-3080  *  bill_sub@billfernandez.com  *  http://billfernandez.com


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