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About Me
- Gordon Pritchard (a.k.a. gordo)
- Formerly Print Quality Marketing Manager for eleven years at Creo/Kodak. Presented at print technical conferences, trained printers and buyers regarding print quality issues in Europe, N. America, and S.E. Asia. Articles published in trade journals, co-authored TAGA paper on halftone screening, authored BRIDG's guide to halftone screening. Previously Technical Director of Western Canada's largest commercial sheetfed shop. For several years Professor of Digital Graphic Design at Emily Carr University. Former Creative Director at McCann Ericksson Vancouver. Currently looking for opportunities related to the subjects covered in this blog. Contact me at: pritchardgordon @ gmail (dot) com.
Past Topics - but not every topic covered is listed here.
- AM/XM Screening (27)
- Color alignment (41)
- Color tolerancing (9)
- competition (35)
- DMaxx (1)
- dot gain (12)
- Dot Shapes (5)
- FM screening (21)
- GCR (10)
- Ghosts (2)
- grey balance (6)
- Grey Levels (1)
- Grrrrrrrrrrr (5)
- Halftone Screening (36)
- Hi-Fi color (5)
- Ink (14)
- ink saving (10)
- Ink Sequence (4)
- Investments (13)
- jpeg (3)
- Loupes (2)
- lpi/dpi (5)
- Metamerism (1)
- Misc. (44)
- Moiré (8)
- Optical Brightners (6)
- Pantone (11)
- Paper (3)
- Print 09 (8)
- print buyer (15)
- printing press (35)
- Profit (6)
- proofing (9)
- quality (99)
- RE:Print (11)
- Registration (3)
- Reseparation for ink saving (9)
- Rosettes (4)
- Scanning (4)
- Screen angles (5)
- SID (8)
- Spot color (11)
- Success (64)
- Supplied art (24)
- TVI (10)
- UCR (2)
- Vendors (10)
- Wayback View (35)
Copyright Gordon Pritchard All Rights Reserved
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I always thought that color discrimination for saturated oranges was bigger than for any other. Isn't this information applying for included desaturated (green) ones? Cheers,
ReplyDelete@BrnLng
ReplyDeleteThis is a complex topic and useful information is hard to find.
The reason that I said that "Humans have very good color discrimination for greens and much less for blues, reds, yellows, and purples" is based on biology. If you look at a chromaticity diagram or a plot of the spectral sensitivity of the eye you'll see how much larger the range of greens is. It's also alluded to in biology texts because primates like humans, apes, and monkeys need to be able to distinguish between different greens and yellows to ensure that leaf covered branches are alive and safe to climb on and whether fruit is ripe to eat. Greens from blue-green to yellow green are also the predominant colors in our original habitats - African jungle and savanna - which again would favor a need to discriminate between different greens.