You're forgetting that pixels on most digital cameras are monochrome, and there's a system of rgb filters over those sensors to get the colour, and an algorithm to turn a bunch of those rgb values into a single value for each pixel. Ie an 8 by 8 area of sensor isn't really 64 rgb pixels; it's 64/3 (roughly) of each of r,g and b components and this is turned into 64 pixels using interpolation.
You're making a mess of dynamic range though, too. For one thing, 255 doesn't come into it - you tend to get more than an 8 bit range. It's crummy jpegs which are stuck in the dark ages. Most reasonable cameras let you take pictures in RAW format, meaning you get closer to what the sensor recorded, without having lossless compress, 8 bit quantization or white balance etc burned into the image.
And even if your 255 is just an example, you don't make sense. Once you start averaging pixels (beyond what I referred to in my first paragraph) you're losing sharpness. And what are you going to do with your numbers, anyway? You have to convert them back to 0 -> 255 to store them in a jpeg.
Dynamic range is simply the fact in a room with dark dark bits,and bright bright bits, you have to choose what to expose. For example, in a dark church with no lighting, except for small stained glass windows with light streaming through them - if you adjust the settings to take a picture of the windows, you'll probably have quite a short shutter speed, or a small aperture, or a low ISO. Do this, and the dark parts of the photo will be very dark. You can try and make the dark bits bright in software, but you'll not have much data to go on, so you'll be adding a lot of noise.
If you try and expose for the dark parts by using a slow shutter, wide aperture of high iso, you're going to get a lot of dark detail, but you'll probably blow the highlights on the stained glass window. IE you'll exceed the maximum amount of light you can capture and end up with pure white. That's why professional photographers use filters when they do landscape shots - the top half will have a physical filter preventing as much light reaching the sensor as the bottom half. Some people use HDR to try and fix this - they take several identical shots on a tripod which differ only by shutter speed, and then try and combine the detail from the shots - take the bright bits from the fast shot and the dark detail from the lower shots. Personally, I think 99% of HDR shots look dreadful, because they are so utterly unrealistic, but they can be striking and it is possible to use it subtly, and I'm sure one day the software will be easier to use (that is, it'll be easier to make it look accurate - it's pretty easy now if you don't mind the results looking awful).
They don't even have a colour for each pixel yet - just a monochrome sensor and a plastic coating to prevent/allow light of given wavelengths to hit each pixel, then this mess is converted into rgb pixels using some algorithm or other. This is why the number of megapixels for a given sensor is a bit of a joke - there are far fewer actual rgb pixels than there are monochrome pixels.
Except that Matrix 3 was rubbish, and which had the hilarious `we're under attack so lets dance around like idiots to some crap music while some bad sex is performed elsewhere in the building` sequence.
> programmers in modern times should be heading to wikipedia almost constantly > just posting this on Slashdot will raise awareness across a high percentage of the programming world
No, that's not how it works. Statistically, no programmers read Slashdot, and only a few read Wikipedia. I can hardly think of a more terrible way to inform people of the right way to deal with this problem, such as it is.
I think people just find it funny when little countries get all excited about having a few jets or bombs. Ultimately it's about the friends you make. Iran is a pissy little country, but Russia is behind it, so if Israel bombs the reactor, it'll kill Russians and they'll get involved - it's not just a few bearded turds with big words but small defence budgets. Likewise with Turkey - they pose a threat to no-one, militarily. There's never going to be a war over Cyprus or whatever. Ultimately the US are on your side cos you're right next door (and a flight path to) all the trouble. I'm surprised there's surprise from the UN and whoever else about people not giving more aid to Pakistan after the floods. They've got nuclear weapons! People aren't stupid. They're not going to give money to a country to effectively subsidize their nuclear program when they're perfectly capable of spending a few million on boats, water purifiers, move food/medicine around etc.
> Man, really does apple.com or google.com has some very advanced background mind programming graphic so some people becomes rather like cult members?
No, but they have people releasing code for their platform who view the $5 charge in the same way they view their ISP/electricity/book costs - as part of doing business.
The choice is ATI or nVidia, right? If you can't justify spending more than £40 and you want a card which works on a 64bit Ubuntu install, and you want it to be pretty fast, what would you do? I bought an ATI card so I could sort of vaguely support a company which isn't openly hostile to the Open Source community. I'm not sure what else I could have done!
Let's be honest - if I find a bug in some Linux software, it won't get fixed. I won't fix it, and I've tried reporting bugs in the past and they don't get fixed either.
This card "just works" - it provides great performance for QuakeLive which is just about all I play, and I on my quad core 64bit Unbuntu distro the deskstop is hardly sluggish either. Yes, I'd prefer it if all the source were available, but it's not. If I had any problems I could try using one of the open source driver projects, but I don't have the need just yet, and by all accounts performance is not up there with the evil binaries.
Someone tried it. It's hard to get people to use a new word you just invented though, because it makes you sound like a dick. Grok, for example. (There can be few things more funny than listening to someone trying to convince someone else to use 'grok' instead of 'understand'.)
Yeah, I just bought a branded 16GB usb key for £17 (including delivery). I can even boot Ubuntu off it. Who needs a hard disk other than for storing large numbers of files, or huge files?
You're talking rubbish. I can't stand apps on my HTC Desire which don't support multitouch. It's a piece of piss. Are you disabled? If an piece of hardware requires a lot of typing on a screen then you've bought the wrong hardware, or are using the wrong software.
Blood justice? Making driving inconvenient for people who've chosen to drive whilst drunk is blood justice? They should get the choice between this system or a life ban. How many times do you think someone should be able to be caught driving whilst drunk before they get a life ban? Perhaps if the problems are being corrected you'd answer 20? 30? "We've almost corrected the problem, your honour - just a few more convictions for driving whilst drunk and I think we'll have this problem licked".
I'll have to start a 'hookers for rapists' charity, as I feel they just need a little correction.
> Given that drunk driving convictions skew to lower income, this has real potential to put even first-time offenders into bankruptcy.
So.. don't drink drive. Assuming this proposal lowered subsequent drink driving offences/accidents, are you suggesting that this should be overlooked because the criminal might have a hard time affording tvs, holidays etc? I don't get it.
I'm in Europe (the UK, to be precise). How do I get rid of the crap Orange branding, including un-uninstallable trial versions of games? The new OS - Froyo, aka v2.2 - is out for my phone. At least, it is for customers of some carriers, but not Orange. When's the Orange version coming out? A few weeks? Apparantly. Or will it be months. Before 2.3 comes out? Is 2.3 coming out? It's not very clear, is it?
Just state the criteria. (I considered putting funds into ethical stock once, but the restrictions seemed dumb, both in terms of what they considered ethical (not in my opinion) and vice versa. In the end I chose them myself.)
I remember people telling me it wasn't too dark. It was odd, because you only had to look at the screen to see that it was. I don't understand people sometimes. "Change the gamma setting" they'd say. "Fix the bugs in the game", I'd reply. I noticed that a few but not all games had this problem. I notice that this isn't a problem any longer, unless perhaps you're trying to play OpenArena under Linux. I tried, but gave up. QuakeLive doesn't have those sorts of bugs.
> Apple's products aren't, in all respects, better than the competitors; what they are is more polished, more refined, and an order of magnitude easier to pick up on and > figure out on your own.
Perhaps in the past. The 1,000,000 new Android users every 5 days seem to suggest this is no longer correct.
Slashdot Mirror
You're forgetting that pixels on most digital cameras are monochrome, and there's a system of rgb filters over those sensors to get the colour, and an algorithm to turn a bunch of those rgb values into a single value for each pixel. Ie an 8 by 8 area of sensor isn't really 64 rgb pixels; it's 64/3 (roughly) of each of r,g and b components and this is turned into 64 pixels using interpolation.
You're making a mess of dynamic range though, too. For one thing, 255 doesn't come into it - you tend to get more than an 8 bit range. It's crummy jpegs which are stuck in the dark ages. Most reasonable cameras let you take pictures in RAW format, meaning you get closer to what the sensor recorded, without having lossless compress, 8 bit quantization or white balance etc burned into the image.
And even if your 255 is just an example, you don't make sense. Once you start averaging pixels (beyond what I referred to in my first paragraph) you're losing sharpness. And what are you going to do with your numbers, anyway? You have to convert them back to 0 -> 255 to store them in a jpeg.
Dynamic range is simply the fact in a room with dark dark bits,and bright bright bits, you have to choose what to expose. For example, in a dark church with no lighting, except for small stained glass windows with light streaming through them - if you adjust the settings to take a picture of the windows, you'll probably have quite a short shutter speed, or a small aperture, or a low ISO. Do this, and the dark parts of the photo will be very dark. You can try and make the dark bits bright in software, but you'll not have much data to go on, so you'll be adding a lot of noise.
If you try and expose for the dark parts by using a slow shutter, wide aperture of high iso, you're going to get a lot of dark detail, but you'll probably blow the highlights on the stained glass window. IE you'll exceed the maximum amount of light you can capture and end up with pure white. That's why professional photographers use filters when they do landscape shots - the top half will have a physical filter preventing as much light reaching the sensor as the bottom half. Some people use HDR to try and fix this - they take several identical shots on a tripod which differ only by shutter speed, and then try and combine the detail from the shots - take the bright bits from the fast shot and the dark detail from the lower shots. Personally, I think 99% of HDR shots look dreadful, because they are so utterly unrealistic, but they can be striking and it is possible to use it subtly, and I'm sure one day the software will be easier to use (that is, it'll be easier to make it look accurate - it's pretty easy now if you don't mind the results looking awful).
They don't even have a colour for each pixel yet - just a monochrome sensor and a plastic coating to prevent/allow light of given wavelengths to hit each pixel, then this mess is converted into rgb pixels using some algorithm or other. This is why the number of megapixels for a given sensor is a bit of a joke - there are far fewer actual rgb pixels than there are monochrome pixels.
Except that Matrix 3 was rubbish, and which had the hilarious `we're under attack so lets dance around like idiots to some crap music while some bad sex is performed elsewhere in the building` sequence.
> programmers in modern times should be heading to wikipedia almost constantly
> just posting this on Slashdot will raise awareness across a high percentage of the programming world
No, that's not how it works. Statistically, no programmers read Slashdot, and only a few read Wikipedia. I can hardly think of a more terrible way to inform people of the right way to deal with this problem, such as it is.
He axed you a question, blood.
I think people just find it funny when little countries get all excited about having a few jets or bombs. Ultimately it's about the friends you make. Iran is a pissy little country, but Russia is behind it, so if Israel bombs the reactor, it'll kill Russians and they'll get involved - it's not just a few bearded turds with big words but small defence budgets. Likewise with Turkey - they pose a threat to no-one, militarily. There's never going to be a war over Cyprus or whatever. Ultimately the US are on your side cos you're right next door (and a flight path to) all the trouble. I'm surprised there's surprise from the UN and whoever else about people not giving more aid to Pakistan after the floods. They've got nuclear weapons! People aren't stupid. They're not going to give money to a country to effectively subsidize their nuclear program when they're perfectly capable of spending a few million on boats, water purifiers, move food/medicine around etc.
> Man, really does apple.com or google.com has some very advanced background mind programming graphic so some people becomes rather like cult members?
No, but they have people releasing code for their platform who view the $5 charge in the same way they view their ISP/electricity/book costs - as part of doing business.
Not if they posted a code to the card's billing address which you needed to enter online to confirm you're the cardholder.
The choice is ATI or nVidia, right? If you can't justify spending more than £40 and you want a card which works on a 64bit Ubuntu install, and you want it to be pretty fast, what would you do? I bought an ATI card so I could sort of vaguely support a company which isn't openly hostile to the Open Source community. I'm not sure what else I could have done!
Let's be honest - if I find a bug in some Linux software, it won't get fixed. I won't fix it, and I've tried reporting bugs in the past and they don't get fixed either.
This card "just works" - it provides great performance for QuakeLive which is just about all I play, and I on my quad core 64bit Unbuntu distro the deskstop is hardly sluggish either. Yes, I'd prefer it if all the source were available, but it's not. If I had any problems I could try using one of the open source driver projects, but I don't have the need just yet, and by all accounts performance is not up there with the evil binaries.
That's why I got an ati card for my ubuntu 10.04 64 bit. I didn't see any other choice!
What's this sentence doing in the write up? As long ago as monday, eh?
Someone tried it. It's hard to get people to use a new word you just invented though, because it makes you sound like a dick. Grok, for example. (There can be few things more funny than listening to someone trying to convince someone else to use 'grok' instead of 'understand'.)
Yeah, I just bought a branded 16GB usb key for £17 (including delivery). I can even boot Ubuntu off it. Who needs a hard disk other than for storing large numbers of files, or huge files?
You're talking rubbish. I can't stand apps on my HTC Desire which don't support multitouch. It's a piece of piss. Are you disabled? If an piece of hardware requires a lot of typing on a screen then you've bought the wrong hardware, or are using the wrong software.
Blood justice? Making driving inconvenient for people who've chosen to drive whilst drunk is blood justice? They should get the choice between this system or a life ban. How many times do you think someone should be able to be caught driving whilst drunk before they get a life ban? Perhaps if the problems are being corrected you'd answer 20? 30? "We've almost corrected the problem, your honour - just a few more convictions for driving whilst drunk and I think we'll have this problem licked".
I'll have to start a 'hookers for rapists' charity, as I feel they just need a little correction.
> Given that drunk driving convictions skew to lower income, this has real potential to put even first-time offenders into bankruptcy.
So.. don't drink drive. Assuming this proposal lowered subsequent drink driving offences/accidents, are you suggesting that this should be overlooked because the criminal might have a hard time affording tvs, holidays etc? I don't get it.
I think what I'm asking is...who gives a shit?
> but it means that the entire group will eat somewhere else.
In my experience it means one of them will helpfully point out that they serve chips, and that they've heard that the salad bar is really great...
Yeah, this plan might have worked were it not for Slashdot reporting on it! lol!
Exactly. "And this is me filming her dying.".
I'm in Europe (the UK, to be precise). How do I get rid of the crap Orange branding, including un-uninstallable trial versions of games? The new OS - Froyo, aka v2.2 - is out for my phone. At least, it is for customers of some carriers, but not Orange. When's the Orange version coming out? A few weeks? Apparantly. Or will it be months. Before 2.3 comes out? Is 2.3 coming out? It's not very clear, is it?
Just state the criteria. (I considered putting funds into ethical stock once, but the restrictions seemed dumb, both in terms of what they considered ethical (not in my opinion) and vice versa. In the end I chose them myself.)
I've only ever used gps in a car, though (unless i'm just fiddling with my phone) and i've got an in car charger for that...
I remember people telling me it wasn't too dark. It was odd, because you only had to look at the screen to see that it was. I don't understand people sometimes. "Change the gamma setting" they'd say. "Fix the bugs in the game", I'd reply. I noticed that a few but not all games had this problem. I notice that this isn't a problem any longer, unless perhaps you're trying to play OpenArena under Linux. I tried, but gave up. QuakeLive doesn't have those sorts of bugs.
> Apple's products aren't, in all respects, better than the competitors; what they are is more polished, more refined, and an order of magnitude easier to pick up on and
> figure out on your own.
Perhaps in the past. The 1,000,000 new Android users every 5 days seem to suggest this is no longer correct.