Thane,
NO. I can be argued with forever, but, I do not think I will agree with
Harry. If you see results that lean one way or the other, fine.
All I can speak is my experience with laser printers. Happy to share,
however.
Best,
Duncan
On 09/15/2014 18:52, Thane Sherrington wrote:
At 06:28 PM 15/09/2014, Harry McGregor wrote:
Hi,
So I went a step farther, I generated two grayscale images.
600x600 DPI, 1 inch
1200x1200 DPI, 1 inch
In each is a rendered letter "A", and it was saved as an LZW tiff, so
no lossy compression involved.
I only looked for "White" pixes, counting anything with any shading
in it as "using toner", which is a little overkill.
hmcgregor@hmcgregor-Satellite-L75D-A:~/Documents$ convert
600dpi_A.tif -format %c -depth 8 histogram:info:- | grep white
300762: (255,255,255,255) #FFFFFF white
hmcgregor@hmcgregor-Satellite-L75D-A:~/Documents$ convert
1200dpi_A.tif -format %c -depth 8 histogram:info:- | grep white
1205231: (255,255,255,255) #FFFFFF white
I took the white pixels in the 1200dpi and divide by 4 to get the
equivalent area coverage of 600:
1205231/4 = 301307.75000000000000000000
I subtracted the white pixels of the 600 DPI image from the white
pixels of the 1200 DPI image, and found:
301307.75-300762=545
This is what I was attempting to do with my graph paper, and I get the
same sort of results. On the other hand, Duncan's experience differs,
and he has a lot of it, which is hard to argue with. :)
T
