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#1
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paint mixing, named colors
in painting and maybe many-colorant systems, I think a "mathematical"
software mixing program, in coordination with a spectral/color measurement device might have a market paints/painting can be expensive if you had a software, perhaps with a xy/uv chromaticity diagram locating all the paints, you could mix on the diagram, then calculate how much of each paint you want to get the color you want, and mix them too get an estimate before trial and error mixing you would need a "measurement tube" to dispense the right amount of paint, might save expensive colorants like some paints ICC has named colors, don't know if they are spectrum or color based I don't know if paint companies have named color profiles for their pant, they might want you to use more paints in the trial and error process named colors and xy/uv diagrams are probably how mathematical constructs are generated for many-colorant ink systems beyond CMYK -- Dale http://www.dalekelly.org |
#2
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paint mixing, named colors
Dale:
in painting and maybe many-colorant systems, I think a "mathematical" software mixing program, in coordination with a spectral/color measurement device might have a market I think you're right. My local Sherwin-Williams store has had such a device for years. Take a color sample to the store and a digital colorimeter will measure the color and automatically add the correct pigments to the base white to reproduce your sample color with amazing precision. -- I agree with almost everything that you have said and almost everything that you will say in your entire life. usenet *at* davidillig dawt cawm |
#3
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paint mixing, named colors
On 04/19/2015 10:26 AM, Davoud wrote:
Dale: in painting and maybe many-colorant systems, I think a "mathematical" software mixing program, in coordination with a spectral/color measurement device might have a market I think you're right. My local Sherwin-Williams store has had such a device for years. Take a color sample to the store and a digital colorimeter will measure the color and automatically add the correct pigments to the base white to reproduce your sample color with amazing precision. forgot about that, they have been doing it for a long time my thoughts were around expensive fine art paints where you have several paints that are typical mixed by trial and error or memory of past trial and error you could have a software with a chromaticity diagram where you add paints and mix them oriented to an end user like a fine art painter -- Dale http://www.dalekelly.org |
#4
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paint mixing, named colors
On 2015-04-19 14:35:48 +0000, Dale said:
On 04/19/2015 10:26 AM, Davoud wrote: Dale: in painting and maybe many-colorant systems, I think a "mathematical" software mixing program, in coordination with a spectral/color measurement device might have a market I think you're right. My local Sherwin-Williams store has had such a device for years. Take a color sample to the store and a digital colorimeter will measure the color and automatically add the correct pigments to the base white to reproduce your sample color with amazing precision. forgot about that, they have been doing it for a long time my thoughts were around expensive fine art paints where you have several paints that are typical mixed by trial and error or memory of past trial and error you could have a software with a chromaticity diagram where you add paints and mix them oriented to an end user like a fine art painter Check with Pantone. Perhaps they could come up with something for you. https://www.pantone.com/pages/pantone/index.aspx -- Regards, Savageduck |
#5
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paint mixing, named colors
Dale:
in painting and maybe many-colorant systems, I think a "mathematical" software mixing program, in coordination with a spectral/color measurement device might have a market Davoud: I think you're right. My local Sherwin-Williams store has had such a device for years. Take a color sample to the store and a digital colorimeter will measure the color and automatically add the correct pigments to the base white to reproduce your sample color with amazing precision. Dale: forgot about that, they have been doing it for a long time my thoughts were around expensive fine art paints where you have several paints that are typical mixed by trial and error or memory of past trial and error you could have a software with a chromaticity diagram where you add paints and mix them oriented to an end user like a fine art painter I suppose, but Rembrandt and DaVinci got along without digital colorimetry, and so can you. -- I agree with almost everything that you have said and almost everything that you will say in your entire life. usenet *at* davidillig dawt cawm |
#6
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paint mixing, named colors
| I think you're right. My local Sherwin-Williams store has had such a | device for years. Take a color sample to the store and a digital | colorimeter will measure the color and automatically add the correct | pigments to the base white to reproduce your sample color with amazing | precision. | | | forgot about that, they have been doing it for a long time | my thoughts were around expensive fine art paints where you have several | paints that are typical mixed by trial and error or memory of past trial | and error | | you could have a software with a chromaticity diagram where you add | paints and mix them oriented to an end user like a fine art painter | I buy a fair amount of paint for my work and have had a lot of computer matches in the past. My experience is that a computer rarely gets it right, and even then it's only with off-whites. I don't try to get a match unless I know the clerk doing the matching and know that he can/will tinker with it to get it right. Some things just don't lend themselves to automation. |
#7
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paint mixing, named colors
In article , Dale
wrote: in painting and maybe many-colorant systems, I think a "mathematical" software mixing program, in coordination with a spectral/color measurement device might have a market paints/painting can be expensive if you had a software, perhaps with a xy/uv chromaticity diagram locating all the paints, you could mix on the diagram, then calculate how much of each paint you want to get the color you want, and mix them too get an estimate before trial and error mixing That won't provide enough information. You need to know the *specific* pigments which were used, and that's nearly (or actually) impossible to derive from the spectral values. And then, of course, you'd need to have them on hand ... Look up "metamerism". Isaac |
#8
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paint mixing, named colors
On 04/20/2015 01:26 AM, isw wrote:
Look up "metamerism". yes ... you could do mixing from spectral data to avoid metamerism -- Dale http://www.dalekelly.org |
#9
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paint mixing, named colors
In article , Dale
wrote: On 04/20/2015 01:26 AM, isw wrote: Look up "metamerism". yes ... you could do mixing from spectral data to avoid metamerism But it would be *really difficult* if you could not identify the specific colorants from their spectra (impossible?). And, of course, you'd be unlikely to have every possible item on hand anyhow. Possible in theory, not very likely in practice. Isaac |
#10
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paint mixing, named colors
On 04/24/2015 11:44 PM, isw wrote:
In article , Dale wrote: On 04/20/2015 01:26 AM, isw wrote: Look up "metamerism". yes ... you could do mixing from spectral data to avoid metamerism But it would be *really difficult* if you could not identify the specific colorants from their spectra (impossible?). And, of course, you'd be unlikely to have every possible item on hand anyhow. Possible in theory, not very likely in practice. Isaac colorimetry alone would get you to "good enough color", accurate enough too edit from -- Dale http://www.dalekelly.org |
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