Rgb To Munsell Converter Box
Quote:Many thanks for posting the link. I've been trying to get hold of a copy of the Methuen standards for a l-o-n-g time.(8:¬)Simba.SimbaI don't know if it makes a difference - but this utility deals with Munsell color numbers.
I'm not sure, but I think the Methuen standard is different.Anybody who can clarify this, please feel free to do soI ran a test on some Munsell values for the German 5 color lozenge scheme. Results are in the form of a 90k.jpg file.If anybody is interested in seeing it, contact me and I will be happy to e-mail it to you.Mark. Mark writes:'I don't know if it makes a difference - but this utility deals with Munsell color numbers. I'm not sure, but I think the Methuen standard is different.Anybody who can clarify this, please feel free to do so.:As far as I know, the Munsell system is a real scientific color notation system. I don't believe this is true of the Methuen 'ssytem.' From the little I have been able to gather, the latter which appears to have been an attempt at a compendium of colors for commercial/industrial purposes-paint manufacturers and the like.
More comprehensive than the FS listing perphaps, but not a system per se. I would appreciate more information from someone better informed on this subject.Nonetheless, I think the use of the Methuen descriptors has been rather less than more helpful in the field of WWI aviation archaelogy, and it would have been better to have standardized on Munsell notation, or to have made use more widely available swatch collections such as Pantone. The latter has the advantange of translating across the real-world and virtual domains.VBR to all,Stefen. HiEver since I found that Munsell converter I’ve been on a quest to get some kind of idea what the “right” colors are for the 5 color lozenge scheme.
Making free Munsell color chip sheet. Ask Question Asked 3 years, 2 months ago. Active 2 months ago. I suppose one can just start by sampling CIELAB and then converting to a standard RGB colorspace then printing. I am not sure if this could be problematic with two hops.
Mark wrote:'Here in order of darkest to lightest are the values I got off the photo matched to their color:1 blue-green, 2 ocher, 3 green, 4 purple, 5 blueAm I the only one flabbergasted by this?? Ocher is the second darkest colorOnly thing I expected was that blue-green would be the darkest – But all the rest run against conventional wisdom.' What is it in conventional wisdom that makes this result unexpected and flabbergasting?' Only explanation could be the infamous effect of Ortho film.So I then took my color lozenge samples and ran a sequence of commands which is supposed to simulate the effects of Ortho film which was posted by Finn a while back.When I compared these values to the ones I derived from the photo they still didn’t match – not even close.' This is hardly surprising-although it certainly is frustrating. I unsuccessfully tried using Channels in Photoshop to mimic the effect of Ortho some months ago (in a method that was probably similar that suggested by Finn). My conclusion is that it is impossible to reproduce the light sensitivities of silver emulsions by non-silver processes.
It wasn't what I wanted to hear, but there it is.This effort of 'colorizing' black-and-white images has a kinship with Dr. Frankenstein's enterprise. But once the life force is gone, it's gone; and once the color is gone, it's gone. It's not like a black-and-white photo is freeze-dried color: Just add Methuen, Photoshop, or water and.Again, once the wavelength information has been stripped out, it be gone.:'(Empathetically,Stefen. Well if you want some scientific detail here's a graph that might help, from the motion picture film part of kodak's site:Take a look at the graph of the ortho film and you will see that it is not very sensitive to red light, which means that a red object will look very much darker on the final print that a blue object. Note also that the sensitivity isn't a straight line - this means that the relative difference between the brightness of the final print relative to the original view depends not only on the original colours but also on exposure (and development) time.
Don't forget that the graph is only a representitive one, two films (particularly from different sources) may have quite different sensitivities.There is one other very important thing that is very hard to account for. Note that the blue end of the graph isn't at the bottom - in fact ortho film is sensitive to ultraviolet light, which we can't see using the naked eye. Things such as vegetation, wood, metal and so on often have different reflective characteristics - which is why these wavelengths (and infrared, as this isn't absorbed by the atmosphere as much) are used in a lot of satellite imaging.All this adds to up to the fact that is impossible to go from an ortho b&w print and confidently say what colour the original was. You can enhance information using a computer, but once it's gone you can't bring it back.
However, that doesn't mean that I don't think you can do useful work using one. Gears of war 2 pc download full ripped. I think it's theoretically possible, with a lot (ie using at least few dozen photos) of work, to get some sort of table of grey values and possible original colours (providing you have some photos where you know what's going on to use as a control). It might also be possible to simulate ortho film if you as well as using what the computer can provide also do some other adjustments to take into account how different materials reflect ultra-violet. Whatever the case, it certainly wouldn't be the sort of thing you could do in an evening.Whilst I don't think you could magically resurrect colours, I think there's a strong chance that you could give an answer to questions like, 'was it green or red' or 'was it this dark green or that light green' and so on. I don't think you could look at a grey swatch and say, 'ah yes that was RGB:56,78,22'.Have funFinn. FinnThanks for the info.I found the curve which shows a simplified version of Ortho film's sensativity to the different spectral colors.And it does explain a lot - like why blue was the lightest color.