[ATM] ATM Digest, Vol 76, Issue 8

[Shigemi Uchida]

Bob May,

You are right.
Since I am going to test the contrast performance of human eyes, colors are
 important subject. When people see things in semi darkness under the man
made light at night, there must be interesting roles of colors and eyes.

This was rather off topic, but I thought similar test can be performed with
the ATM.

Regards,

Shigemi

> From: "Bob May" <rmay at nethere.com>
> Subject: Re: [ATM] Fabricating a Grating of Sinusoidal Intensity
>
> You really want to get to the point of using B&W printers rather
> than color printers.  Colors are always approximations of the rel
> thing which cna get you into troubles when you need high acuracy.
> Next you start running into the problem that you can't do some
> percentage of black, you are either black or white at a
> particular point.  Image reduction and defocusing can produce an
> arbitrary intensity level at any particular point of an image
> tho.