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How much oranger do red orange bags make oranges look?

alexanderell.is

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Re: How much oranger do red orange bags make oranges look?

#71

Post by RataNova »

dmurray wrote: post #26

The best oranges [0] I've had were half green. Fresh from the tree, but still plenty ripe. It's my understanding that oranges for transport to colder countries are picked unripe and ripened in the holds of cargo ships. This ripening process is great at making the skin more orange, and OK at improving the flavour, but nowhere near as good for that as ripening on the tree. So if I saw green patches on my supermarket or…

The best-tasting oranges looked nothing like the perfectly polished, all-orange supermarket ones. Some of them were downright ugly by grocery store standards

Re: How much oranger do red orange bags make oranges look?

#74

Post by HPsquared »

RataNova wrote: post #66
noqc wrote: post #10

>The average pixel was not what I expected. The average pixel doesn't look correct because human vision does not interepret shadowed colors as different colors. We first guess at the shadows, and then do some kind of inverse mapping from the shaded color space to the illuminated one before we "perceive a color". This is why the black,blue/white,gold dress illusion exists.

It's kinda wild how much our brain just auto-corrects for lighting without us realizing it

Motion, too.

Re: How much oranger do red orange bags make oranges look?

#75

Post by Dwedit »

brookst wrote: post #41
Dwedit wrote: post #40

Warning, always convert your colors to from sRGB to Linear RGB before doing any math on them, then convert them back to sRGB afterwards for displaying them. sRGB is the familiar color space you all know and love, it's what your display uses, and it's what has those RGB numbers between 0 and 255. But it's not a linear color space. First think of values as being between 0 and 1 instead of 0 and 255. To change sRGB to L…

Even better, convert to HSL or CieLAB. RGB is not at all how our eyes see things.

When I was trying to find how close colors are to each other (such as when mapping an image to an existing palette), comparing color distance in YCbCr worked far better than comparing color distance in RGB.

Re: How much oranger do red orange bags make oranges look?

#76

Post by ltbarcly3 »

The oranges he used were very ripe. Lately small oranges like tangerines have been very ripe for me. Sometimes when they are out of season they are borderline green, or actually have visible green on them, or are basically yellow. When they are so unripe, the red/orange bag makes a HUGE difference in how they look, it's night and day.

Re: How much oranger do red orange bags make oranges look?

#77

Post by ltbarcly3 »

dmurray wrote: post #26

The best oranges [0] I've had were half green. Fresh from the tree, but still plenty ripe. It's my understanding that oranges for transport to colder countries are picked unripe and ripened in the holds of cargo ships. This ripening process is great at making the skin more orange, and OK at improving the flavour, but nowhere near as good for that as ripening on the tree. So if I saw green patches on my supermarket or…

Some oranges, especially the ones you find in Asia or at Asian fruit stands, can be completely ripe and still completely green. The ones sold in US stores are almost all sour and unripe if they are green (almost always but not always). Different regions in the world 'know about' different citrus fruit (there seem to be a lot of overlap and a lot of non-overlap with fruit), so your mileage may vary. Reddit claims this is because of the temperatures: https://www.reddit.com/r/VietNam/comments/16ca895/why_are_th... It's fun to go to fruit stands when traveling and try the fruits you don't recognize! Lots of fruits are very different if you travel to countries where they can grow them natively, and there are a lot of tropical fruits that aren't exported. Lots of the English words for fruits are re-used so you can be eating something totally unrecognized and it's a "tree cherry" or something.

For example, what they call a lime in a lot of countries (for example Calamansi) would be called a tiny orange in North America (we don't have that fruit here). What we call a lime they wouldn't recognize, but if they saw/tasted it they might think it's a green lemon or something.

Re: How much oranger do red orange bags make oranges look?

#78

Post by mcherm »

Dwedit wrote: post #40

Warning, always convert your colors to from sRGB to Linear RGB before doing any math on them, then convert them back to sRGB afterwards for displaying them. sRGB is the familiar color space you all know and love, it's what your display uses, and it's what has those RGB numbers between 0 and 255. But it's not a linear color space. First think of values as being between 0 and 1 instead of 0 and 255. To change sRGB to L…

> The actual method of conversion involves a complicated curve that isn't continuous

Isn't continuous? Really? That seems surprising to me; tell me more.

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