RE: Real world example of "I don't even know what I don't even know"
January 24, 2017 at 11:40 pm
(January 24, 2017 at 9:49 pm)pool the great Wrote: I first came to know about my color blindness when I went to have my eye testing for my driving license. For about 20 years I thought I was an idiot that couldn't learn colors. On the bright side, color blindness also helps you become a regular target for ridicule.
Gym trainer: "Yeah, see that yellow machine over there? Yeah its for your biceps go check it out"
"how the fuck do I use this yellow (green) machine for biceps?"
(January 24, 2017 at 4:40 pm)emjay Wrote: Well one thing you could do... I don't know if it would help or not but it looks like it might... is, just as a fun experiment and maybe to be able to deduce something from it; most paint packages allow you to manipulate colours in the image by RGB value. So even if you can't see a particular colour... as in distinguish it from another... you could still set it by its value instead. Then you'd have something to work with in deducing what range of colours you can't see/distinguish. For instance if you took an average image and gradually removed the red component from the whole image... which you can do usually at the slide of a slider... would the two images look exactly the same? or if not... if you could perceive a difference in the images at some point, that might tell you something about the extent of the colourblindness. I don't know if this would work... it's just an idea... but it sounds reasonable enough and I'd like to try it myself to have an idea of how a colourblind person might see the world (ie an image with the red component removed) and maybe be able to settle a long standing, but friendly and jokey, dispute with my dad about the colour of a piece of furniture... I maintain he's colourblind, he maintains I am but if this works, maybe it could prove it one way or the other by who perceives a difference in the colours or not, with the RGB values to prove they're different.
I don't know if there are tests available online but the way my doctor found I was color blind was by using some images. The image have different colors in it and then if you look good enough you will see a particular number inside the image created by a pattern made by a color. I was able to find the numbers the first couple of times but later when the doctor showed me the image and asked me "See this 5?" I couldn't see shit, all I saw was just random meaningless colors in random order
Yeah what your doctor did, and what KUSA has erm, thoughtful as ever, demonstrated looks like the same principle as what I was suggesting but more thought-out and organised; a graded change in the RGB values until you couldn't perceive any difference and then from the number, they'd know what 'level' of colourblindness you had. Pretty cool.
I'm in two minds here... thank you KUSA for your very clear illustration of these sorts of tests, that was indeed helpful... but... you know my dilemma. Which I can now resolve by telling you that due to my own perceptual difficulties... not colourblindness but depth perception, I can't do Magic Eyes... many people can but I can't. So if you wish, have at it (just to even things out a little)
