FFmpeg can do PSNR calculations. The only problem with what you call 'sharpness' (in technical terms, we call it noise or signal-to-noise ratio) is you have to have something to compare it with. Movie and video makers often use 'blur' either as a proxy to indicate motion or to put emphasis on the thing in the story that the viewer should focus on. It's also natural for things that are in the 'focus' of the camera to be sharp and everything else to be blurry (unsharp). So measuring 'sharpness' of an image is kind of pointless since 75% of an image is typically blurry.
What you need is get a comparison stream (you could use XMLTV for live channels or a Content ID system for recorded things to identify eg. a movie scene) and then run it through ffmpeg's or avisynth's many calculators.
One of the few things that do happen during cable or satellite streams and which you could minimally calculate is duplicate frames, black frames and dropped audio. Ffmpeg has calculators for all of them.
One of the few proxies you could try but which would be very hard to quantize is simply calculating how 'hard' a frame or set of frames is to compress. Blurry video is more complex and thus harder to compress, you can easily calculate these peaks if your stream is expected to be very homogenous (eg. streaming of a static image). My idea here would be to use MythTV's commercial detection algorithm and/or use OpenCV to detect and focus in on the logo. If the encoding difficulty of the logo changes significantly for periods shorter than the length of a commercial, you may just have detected a frame where the quality dropped.
I think the primary problem is the provider and in-between boxes lying about the bitrates. You can output 4K HDR on your cable box but your provider may be streaming 240p which the box up converts.
The entire dataset (~50TB) is open to search and download right now. There will be bi-yearly releases of both MR and psychological testing, a great starter set for those willing to have their hand at Big Data analysis.
Disclaimer: I work in close proximity and collaboration with a DOE-funded fusion research center.
Fusion research has progressed significantly scientifically speaking, we can repeatedly trigger fusion reactions now, the only problem is input v. output (we still put more in than out) but everything else, containment etc. is pretty much figured out. The power differential is a hard problem made only harder by regulations on the fuels necessary. There are various fusion sites in the US that can't even get their hands on the fuels that have been delivering higher yields and if you've never worked with DOE - trying to hire or replace an employee can take 2-3 years, everything else that's done (hey we think we'll get better yields with a $10,000 modification or "let's replace that computer") can take ages as well.
So a government/NGO should step in and fix this? It's a gross underestimation of people's intelligence which is exactly what leads to fascist/socialist/communist media control policies.
Some surgical instruments cost a lot of money. A simple micro instrument could cost ~$1000. If you need to throw them out, you're looking at padding the bill by another $50-100k.
Too bad that this side you describe is running the news media and Facebook/Google these days. Being one sided indeed isn't a concern if you're on the "right" side.
Microsoft's Linux will only run on Windows/Azure and can only be changed with Visual Studio. You can fork it but you're still locked into the Microsoft platform.
They've already together with VMWare effectively taken over the Linux Foundation; they became members at a few million dollars and suddenly the free seats for key community developers got rescinded. They've already purchased the keynotes at various conferences. Together with IBM (RedHat) pretty much all these conferences now cost $2k+ to attend so the industry is trending towards a closed, commercial interest-only Linux and they couldn't care less what a few neckbeards have to say about it.
Basically if you're partnering with institutions like Politifact, Vox and Snopes then you'll get a very one sided narrative and everything else will be labeled fake news. Perhaps censoring content isn't that great of an idea and these reporters are just mad Facebook isn't listening to their ideas on what should be censored.
News and information should be free, even if it's fake, people can do the fact checking for themselves. The problem here is that these journalists are basically saying "everyone else is dumb, we need to filter the information they get". It's a dangerous proposition.
Embrace, extend, extinguish is Microsoft culture (that is how it was described in a court case). They're already well on their way with that process, the Linux foundation opened a seat for Microsoft and VMware and a few weeks later seats that were offered free to community leaders got cancelled. They recently purchased the keynotes at big Linux conferences. They now have a Linux version that only works on Windows or Azure and can only be used with Visual Studio. I don't know if you realize how big it is to have a soon to be mainstream Linux distro that isn't open.
Refurbs don't work quite that fast and typically are offered through different channels. Also, good refurbs are generally for sale right away but not at 10% of the cost.
If a 30y lifespan is necessary on both hardware and software, why would you go with Windows at all? How easy is it to run Windows 2.x and MsDOS 3 on modern hardware?
Now how easy is it to run and compile simple software under any version of Linux, even if it came from something arcane like SunOS or SCO Unix.
TV's actually have quite a different color space and are also a lot brighter than the professional monitors which would make the settings for the AdobeRGB or sRGB ratings kind of moot since nobody uses a TV at 35-40% of the brightness (to get to the 160 cd/sqm).
You really don't want an "HDR TV" as a monitor and vice versa, hence the ratings are pointless.
Perhaps you should invest in the data center SSD or even SLC if you have that many problems. I had the same problems with various brands but the Intel DC solved most of the problems.
If you want to know the details, learn about the subject at hand. The thing is, electronics wear out, there is a reason these wear out faster than other "solid state technology" like transistors and a lot of it has to do with scaling down the chip.
Obviously there could be other issues at hand too such as firmware failures which then you have to know why SSD's are so much more complex than a hard drive to begin with (hint: it has primarily to do with the above wearing).
Airport slots aren't free. And the battery + engine weight scales up exponentially as you grow unless you can find a new manufacturing process. This plane's battery pack already has three times the weight than it has cargo capacity and it could only power its engines for ~1 hour.
Flights across a nation are often 2-4h, international 8-20h. So you have to double the plane's batteries and engines just to take the same load on your average flight. 20x ($600M) to start comparing with a regular small $30M commuter plane.
Most municipalities already use a combination of sand and salt. The problem is more south-wards where ice and snow are much rarer, they tend to spray pure salt the minute a flock of snow hits their pavement. Further north, they don't even use salt until you get a few cm of snow (you just get mud slush).
Chains aren't a panacea either, you can only go ~30km/h (20mph) on them or risk destroying either the chains or the car and you lose a lot of grip if it hasn't quite snowed that much.
I thought the Internet was going to die at the hands of Trump. It seems with Obama's "Net Neutrality" gone, the FCC and various states are finally going after TWC/Comcast.
Governments: stay out of regulating the Internet Companies: stay into making a profit off it Individuals: don't demand any of the above to do anything for you.
The axiom is that the government is bad at everything. It is there to protect the nation and protect the fundamental rights to free speech, self defense and governmental overreach within society, everything else it does is by definition bad.
The riots in Paris are a result of stupid taxes on the middle class. Taxing fuel doesn't suddenly reduce the amount of fuel consumed, people still need to do the same things, the economy needs the same things today than it did yesterday. Eventually the market will indeed cut fuel spending, but this will be on "unnecessary" spending in research, development, science, education, healthcare etc. first (the things that don't directly impact your primary necessities of food, housing, fuel and sex).
Now the economy in France slows down because everything costs more and thus more people are out of a job, innovation is reduced because more energy/money is spent just keeping yourself alive. Nobody will innovate a way around the fuel tax, that would be considered tax evasion and truckers in France get prosecuted all the time for it (you can use much cheaper "heating" diesel fuel in their trucks, but the government mandates the "transportation" diesel to be much more expensive, likewise you could expand your tanks and fuel up at lower cost stations or at your own tank at home and buy in bulk, again, this is considered theft by the government).
It's why North Korea and Iran isn't the hotbed of innovation and why Europe's innovation has all but died and the US are seeing less and less of it.
If you'd like to breath cleaner, less carcinogenic air, perhaps wanting a semiconductor factory with arsenic and hydrofluoric acid in your backyard to produce a lead-leaching panel on your roof isn't a good idea.
A solar hot water heater is much cheaper, less polluting and can even be done DIY.
People generally always look at both short and long term gains. If we all lived for short term gains, we would not have such things as banks, savings or investment accounts.
Governments are the ones on a 4 year cycle (at best) and have to make short term gains in some particular area or risk being overthrown. If solar added incredible value and eliminated utility prices, we'd all have them by now, people aren't stupid (that's what the left and the government seems to think), actually landlords and corporations would be the first to have them.
The problem with government is that it's effectively limiting freedom. They are putting a gun to your head and telling you to install solar panels, whether it makes sense or not. If 5 years from now some new innovation gives us personal fusion reactors, solar panels will still be required in CA - at gunpoint. When solar panels will skyrocket in price because war with China, CA will at gunpoint require you to obtain them anyway. Even though solar hot water makes more sense, is ecologically better and is cheaper both short and long term than solar panels, CA will at gunpoint require you to remove that hot water boiler and put up a solar panel.
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FFmpeg can do PSNR calculations. The only problem with what you call 'sharpness' (in technical terms, we call it noise or signal-to-noise ratio) is you have to have something to compare it with. Movie and video makers often use 'blur' either as a proxy to indicate motion or to put emphasis on the thing in the story that the viewer should focus on. It's also natural for things that are in the 'focus' of the camera to be sharp and everything else to be blurry (unsharp). So measuring 'sharpness' of an image is kind of pointless since 75% of an image is typically blurry.
What you need is get a comparison stream (you could use XMLTV for live channels or a Content ID system for recorded things to identify eg. a movie scene) and then run it through ffmpeg's or avisynth's many calculators.
One of the few things that do happen during cable or satellite streams and which you could minimally calculate is duplicate frames, black frames and dropped audio. Ffmpeg has calculators for all of them.
One of the few proxies you could try but which would be very hard to quantize is simply calculating how 'hard' a frame or set of frames is to compress. Blurry video is more complex and thus harder to compress, you can easily calculate these peaks if your stream is expected to be very homogenous (eg. streaming of a static image). My idea here would be to use MythTV's commercial detection algorithm and/or use OpenCV to detect and focus in on the logo. If the encoding difficulty of the logo changes significantly for periods shorter than the length of a commercial, you may just have detected a frame where the quality dropped.
I think the primary problem is the provider and in-between boxes lying about the bitrates. You can output 4K HDR on your cable box but your provider may be streaming 240p which the box up converts.
A video is a set of images. Sharp images = sharp video.
What the poster is asking for is not a measure of "sharpness" but a measure of quality.
The entire dataset (~50TB) is open to search and download right now. There will be bi-yearly releases of both MR and psychological testing, a great starter set for those willing to have their hand at Big Data analysis.
Disclaimer: I work in close proximity and collaboration with a DOE-funded fusion research center.
Fusion research has progressed significantly scientifically speaking, we can repeatedly trigger fusion reactions now, the only problem is input v. output (we still put more in than out) but everything else, containment etc. is pretty much figured out. The power differential is a hard problem made only harder by regulations on the fuels necessary. There are various fusion sites in the US that can't even get their hands on the fuels that have been delivering higher yields and if you've never worked with DOE - trying to hire or replace an employee can take 2-3 years, everything else that's done (hey we think we'll get better yields with a $10,000 modification or "let's replace that computer") can take ages as well.
So a government/NGO should step in and fix this? It's a gross underestimation of people's intelligence which is exactly what leads to fascist/socialist/communist media control policies.
Some surgical instruments cost a lot of money. A simple micro instrument could cost ~$1000. If you need to throw them out, you're looking at padding the bill by another $50-100k.
Too bad that this side you describe is running the news media and Facebook/Google these days. Being one sided indeed isn't a concern if you're on the "right" side.
Microsoft's Linux will only run on Windows/Azure and can only be changed with Visual Studio. You can fork it but you're still locked into the Microsoft platform.
They've already together with VMWare effectively taken over the Linux Foundation; they became members at a few million dollars and suddenly the free seats for key community developers got rescinded. They've already purchased the keynotes at various conferences. Together with IBM (RedHat) pretty much all these conferences now cost $2k+ to attend so the industry is trending towards a closed, commercial interest-only Linux and they couldn't care less what a few neckbeards have to say about it.
Basically if you're partnering with institutions like Politifact, Vox and Snopes then you'll get a very one sided narrative and everything else will be labeled fake news. Perhaps censoring content isn't that great of an idea and these reporters are just mad Facebook isn't listening to their ideas on what should be censored.
News and information should be free, even if it's fake, people can do the fact checking for themselves. The problem here is that these journalists are basically saying "everyone else is dumb, we need to filter the information they get". It's a dangerous proposition.
Embrace, extend, extinguish is Microsoft culture (that is how it was described in a court case). They're already well on their way with that process, the Linux foundation opened a seat for Microsoft and VMware and a few weeks later seats that were offered free to community leaders got cancelled. They recently purchased the keynotes at big Linux conferences. They now have a Linux version that only works on Windows or Azure and can only be used with Visual Studio. I don't know if you realize how big it is to have a soon to be mainstream Linux distro that isn't open.
The question is: what version, does it have Microsoft-specific extension and what shell do you end up getting (Bash would be nice).
The problem will be when (not if) Microsoft refuses to patch just to point out how 'insecure' Open is.
Refurbs don't work quite that fast and typically are offered through different channels. Also, good refurbs are generally for sale right away but not at 10% of the cost.
If a 30y lifespan is necessary on both hardware and software, why would you go with Windows at all? How easy is it to run Windows 2.x and MsDOS 3 on modern hardware?
Now how easy is it to run and compile simple software under any version of Linux, even if it came from something arcane like SunOS or SCO Unix.
TV's actually have quite a different color space and are also a lot brighter than the professional monitors which would make the settings for the AdobeRGB or sRGB ratings kind of moot since nobody uses a TV at 35-40% of the brightness (to get to the 160 cd/sqm).
You really don't want an "HDR TV" as a monitor and vice versa, hence the ratings are pointless.
Perhaps you should invest in the data center SSD or even SLC if you have that many problems. I had the same problems with various brands but the Intel DC solved most of the problems.
And here I thought all innovation was done by (white) male privilege and they invented everything to keep the subjugation of woman in place.
If you want to know the details, learn about the subject at hand. The thing is, electronics wear out, there is a reason these wear out faster than other "solid state technology" like transistors and a lot of it has to do with scaling down the chip.
Obviously there could be other issues at hand too such as firmware failures which then you have to know why SSD's are so much more complex than a hard drive to begin with (hint: it has primarily to do with the above wearing).
Airport slots aren't free. And the battery + engine weight scales up exponentially as you grow unless you can find a new manufacturing process. This plane's battery pack already has three times the weight than it has cargo capacity and it could only power its engines for ~1 hour.
Flights across a nation are often 2-4h, international 8-20h. So you have to double the plane's batteries and engines just to take the same load on your average flight. 20x ($600M) to start comparing with a regular small $30M commuter plane.
Most municipalities already use a combination of sand and salt. The problem is more south-wards where ice and snow are much rarer, they tend to spray pure salt the minute a flock of snow hits their pavement. Further north, they don't even use salt until you get a few cm of snow (you just get mud slush).
Chains aren't a panacea either, you can only go ~30km/h (20mph) on them or risk destroying either the chains or the car and you lose a lot of grip if it hasn't quite snowed that much.
I thought the Internet was going to die at the hands of Trump. It seems with Obama's "Net Neutrality" gone, the FCC and various states are finally going after TWC/Comcast.
Governments: stay out of regulating the Internet
Companies: stay into making a profit off it
Individuals: don't demand any of the above to do anything for you.
The axiom is that the government is bad at everything. It is there to protect the nation and protect the fundamental rights to free speech, self defense and governmental overreach within society, everything else it does is by definition bad.
The riots in Paris are a result of stupid taxes on the middle class. Taxing fuel doesn't suddenly reduce the amount of fuel consumed, people still need to do the same things, the economy needs the same things today than it did yesterday. Eventually the market will indeed cut fuel spending, but this will be on "unnecessary" spending in research, development, science, education, healthcare etc. first (the things that don't directly impact your primary necessities of food, housing, fuel and sex).
Now the economy in France slows down because everything costs more and thus more people are out of a job, innovation is reduced because more energy/money is spent just keeping yourself alive. Nobody will innovate a way around the fuel tax, that would be considered tax evasion and truckers in France get prosecuted all the time for it (you can use much cheaper "heating" diesel fuel in their trucks, but the government mandates the "transportation" diesel to be much more expensive, likewise you could expand your tanks and fuel up at lower cost stations or at your own tank at home and buy in bulk, again, this is considered theft by the government).
It's why North Korea and Iran isn't the hotbed of innovation and why Europe's innovation has all but died and the US are seeing less and less of it.
If you'd like to breath cleaner, less carcinogenic air, perhaps wanting a semiconductor factory with arsenic and hydrofluoric acid in your backyard to produce a lead-leaching panel on your roof isn't a good idea.
A solar hot water heater is much cheaper, less polluting and can even be done DIY.
People generally always look at both short and long term gains. If we all lived for short term gains, we would not have such things as banks, savings or investment accounts.
Governments are the ones on a 4 year cycle (at best) and have to make short term gains in some particular area or risk being overthrown. If solar added incredible value and eliminated utility prices, we'd all have them by now, people aren't stupid (that's what the left and the government seems to think), actually landlords and corporations would be the first to have them.
The problem with government is that it's effectively limiting freedom. They are putting a gun to your head and telling you to install solar panels, whether it makes sense or not. If 5 years from now some new innovation gives us personal fusion reactors, solar panels will still be required in CA - at gunpoint. When solar panels will skyrocket in price because war with China, CA will at gunpoint require you to obtain them anyway. Even though solar hot water makes more sense, is ecologically better and is cheaper both short and long term than solar panels, CA will at gunpoint require you to remove that hot water boiler and put up a solar panel.