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Originally posted by Kellter
Anyone know of a good tutorial for gimp of PS in reference to deltas and the such?
ps, watching your points to see if you get an applause
Originally posted by pantha
or in other words "get your fingers out cause I'm fed up with bashing my head against a wall in frustration at your stupidity" (joke)
Diffractive subtractive color filtering technique
Document Type and Number:
United States Patent 3957354
A subtractive color filtering technique, suitable for the projection of color pictures, employs diffraction, rather than color dyes, for discriminatingly subtracting unwanted spectral wavelength portions of polychromatic illuminating light. The useful output light may consist of solely the zero-order diffraction output light or, alternatively, one or a certain combination of diffraction orders other than the zero diffraction order (such as the aggregate of all diffraction orders other than the zero diffraction order which corresponds to the complement of the zero-order diffraction output light).
FIELD OF THE INVENTION
This invention relates to electrophotographic color printers that use
BACKGROUND OF THE INVENTION
Electrophotographic marking is a well known and commonly used method of
copying or printing documents. Electrophotographic marking is performed by
exposing a light image representation of a desired document onto a charged
Additive Color Model: How Do You Make It Intuitive
I've worked with the CMYK subtractive color model most of my career life. Now, everything has changed. I only work with RGB now, for web and web graphics. The problem is that while the CMYK model was easy to work with when making color adjustments or mixing color, because it was based on what you see naturally and the results were expected results (add yellow, see yellow,) with RGB it's not so intuitive. There must be some recommended way. I understand how it works so that is not the issue; What I'm looking for is how you are enabled to 'see' what the expected results will be, in your mind, in other words, how did you who work with it and have become comfortable with what you are doing to achieve a given result color, make your way to having it become an intuitive process?
An additive color model involves light emitted directly from a source or illuminant of some sort. The additive reproduction process usually uses red, green and blue light to produce the other colors. See also RGB color model.
Results obtained when mixing additive colors are often counterintuitive for people accustomed to the more everyday subtractive color system of pigments, dyes, inks and other substances which present color to the eye by reflection rather than emission. --------For example, in subtractive color systems green is a combination of yellow and blue, in additive color, red + green = yellow and no simple combination will yield green.