Question:
What is the difference between raw image files and jpeg image files?
Nimz
2019-07-31 05:18:55 UTC
Is there more information stored in a raw image file? What is the advantage of recording raw image files?
Eight answers:
2019-10-19 21:38:07 UTC
Gov't is killing you with high frequency electricity.Theotokos Virgin Mary gave prayers to "Schema-nun Antonia" on how to save aborted babies from hell. If you pray these prayers diligently, aborted babies are released from hell. On each painted nail there are 40 demons. Smoking is censer to the devil.Using foul language calls upon Pagan deities (aka demons); Holy Spirit departs on 7 meters. People who use drugs see demons who cleverly disguise themselves as ghosts and aliens.America will be last country to switch to Euro (antichrist's world currency). Contraceptives = abortion;using contraceptives for 1 year = 5 aborted kids.Miscarriages happen because of high heels; cesarean because of tight pants (second generation cesarean will be infertile).Unbaptized aborted/miscarried/unborn babies burn in hell for until Final Judgement; if pregnant, keep the kid and deliver at home because kids are chipped using IVs and vaccines in hospitals. Dentists and doctors chip patients secretly. Ultrasound leads to mark of the beast; don't do ultrasound, please. Abortion leads to breast cancer; a demon is released from hell for each aborted kid. Dogs can become possessed; don't keep dogs inside your home [Pelageya of Ryazan]. Walmart has technology to administer mark of the beast to those who have cat bacteria in their stomachs; stay away from cats [Athanasius III of Constantinople]. Next false flag is the Statue of Liberty. Above earth there is ice (hemisphere); when rockets go up they bring ice down from upper sky to lower sky; ice stuck in lower sky will fall on us during Apocalypse. Earth is flat; earth stands on 3 pillars (the Most Holy Trinity); pillars stand on water at zero Kelvin; underneath this ice there is a bubble; and then the abyss. Zodiac is planetary prison of demons; don't believe in horoscopes or you'll exhibit the traits of the trapped demons. Most thoughts and dreams are from demons; demons never do good. Sleep fully clothed; pray the Jesus prayer. Pray to your guardian angel to have normal sleep. Vyacheslav Krasheninnikov was the last prophet before Apostle John (who wrote the Book of Revelation), Enoch, Elijah, resurrected Seraphim of Sarov, and resurrected Sergius of Radonezh will preach against the antichrist. Humans were created about 7525 years ago. Birds participate in time creation. It's a sin to kill birds. Dinosaurs live under our level; they will get out through sinkholes and lakes; to kill them, go for their nerves. Save the birds; but kill the dinosaurs. First dinosaur will come out of Volga River in Russia. Scientists don't see dinosaurs under our level because of radiation. Sinkholes happen because people dig for resources underground and because earth is heating up. Demons grow human skin (from a sample taken during abduction) and put it on so as to look like us. Demons will invite people to be healed inside their UFOs; those who go will be like zombies after. Gov't provides demons with diamonds and allows demons to abduct people. If you're being abducted, slowly pray the Jesus prayer. Don't panic. Demons use diamonds and souls to power their UFO craft. The bigger the diamond, the more it lasts. Demons have 4 UFO bases: 1)moon 2)inside fake mountain Kailash (Tibet) 3)in lake Baikal in Russia 4)in Atlantis which is underneath double ocean floor of Mariana Trench (Pacific Ocean). There are no aliens. Nobody lives on other planets. Airplanes that go down are hit by demons because they need the airspace to fight Jesus. Antichrist is pale with red eyes. He's possessed by Satan since he's 12 years old [Lavrentiy Chernigovskiy]. He flies super fast; deceived people will say: "Christ is here; Christ is there" when he's flying from one city to the next very fast. He wears gloves to hide long nails. He's surrounded by demons who appear as angels of light. Antichrist will trick people that he can do mountain moving and resurrection using holograms/hypnosis; fire from the sky is real because of pollution gases in the atmosphere. Antichrist will have food only for 6 months; then he will feed his 666ed people flour from mashed up turtles (Tavrion Batozskiy), but this won't be enough because 666ed people are 10 times as angry and 7 times as hungry as normal people even though 666ed people became shorter (3-4 feet tall = 80 - 120 cm) because nanochips do function of organs (organs diminish) [Nilus Myrrhgusher]. If you have a lot of nanochips in your forearm, then you will not be able to make proper Orthodox sign of the cross (last mercy for you will be to cut your forearm off). Nanochips are sprayed by the gov't using chemtrails; they're also in gov't food and medicine; so, eat food from your own garden. In case garden is destroyed by ice from the sky, have chickens for eggs and goats for milk (Paisios). Lipstick contains cells of aborted fetuses, dog fat, and placenta; human flesh is in McDonalds, Pepsi, toothpaste, antiaging, anticancer, vaccines, perfume, etc.; that's why you should not be using anything that modern society has to offer. You're better off hiding within a 10-12 people group in order to escape Apocalypse. During Apocalypse, Chrtistians will eat dirt from under pussywillowtree as it's filled with tears of Theotokos Virgin Mary; this water will flee if a 666ed person tries to get it. Barcode is Druid black magic curse; QRcode is Mayan curse; when food is scanned, it becomes dead because laser is a substance from demons. Don't go into a UFO to be healed by demons. Green 666 is given by isotope rays on wrist or forehead when people stretch hands to receive small plastic grey card with no name on it (World Passport). It doesn't just have to be during this procedure (could be anything you sign up for or anywhere where there is a secret scanner); biometrics (fingerprints, eyes scan) or getting picture for passport are very dangerous because they could mark you secretly. Gabriel Urgebadze said that they do it on index finger when they scan your finger. Basically, try to avoid new documents at all cost. Police will microchip and isotope ray people on highways. Chipped people will be influenced by computers to take grey plastic card; but when they do, green mark by isotope rays is given on forehead/wrist. Food stores will isotope ray people too. Antichrist will also release prisoners to mark people. Reject 666 at all cost because it leads to permanent hell. If you're about to be marked, pray the Jesus prayer. Hide with Orthodox Christians to escape 666; leave all electronics behind so that antichrist's minions can't track you; burn documents because they're from Satan. The Most Holy Trinity gives you a name during baptism; devil gives an antiname during antibaptism (ex. Social Security Number). People who die with these Satanic documents go to concentration camp in hell to await Final Judgement; once the BEAST Computer is burned down, souls will be released for Final Judgement. That's why you should give back documents of your deceased relatives back to the gov't so that the gov't cancels these digital antichristian names given during antibaptism by the beast system; or just burn these documents because gov't could get upset and could send demons to mark you because of this outright act of defiance. Prophecy from half a millennium ago describes Final Judgement like this: Jesus was very upset with people who had little boards (plastic cards) in their hands because they wanted discount from the antichrist. Give to charity in the name of Archangel Michael; he rescues people from temporary hell twice a year [at midnight September 18-19 and similarly on November 20-21; pray at these times on your knees remembering the deceased by names (adding "and relatives by flesh up to Adam") so that they are rescued if they're in hell] (or brings them up a level, that is, to a level with less punishment; eventually, people are freed). Feed the pigeons; when pigeons bow down, people are saved from temporary hell. It's a big sin to remember the dead with wreaths (because demons put these wreaths on their necks if they're in hell with their hands tied up behind their back while hanging by their hands), meat, alcohol, sweets, and worldly music. Demons print icons of saints in newspapers so that you throw these newspapers in the trash blaspheming these saints. Crosses on soles of shoes and back of pants are blasphemy. Demons make carpets with crosses and put them on sidewalks so that people walk on crosses. Playing cards mock how Jesus suffered on the cross: clubs (cross on which Jesus was crucified), diamonds (four nails Jesus was crucified with), hearts (sponge with vinegar that Jesus was given to drink),spades (spear with which Jesus was pierced).Cremation is devil worship; only blasphemers such as Lenin should be burned; if Lenin is buried, earth will be polluted, and China will attack Russia because of this.After China attacks Russia, Ruski Orthodox Tsar (shown by resurrected Seraphim of Sarov) will come to power in Russia;this Tsar will slay traitors inside church and gov't; as a result, Russia will be the only country not under the antichrist.Ecumenism = 263 heresies;each heresy leads to hell. In 2006 in Moscow (that's why Moscow will sink),representatives from most religions signed a document where it says that all religions worship the same Supreme Being [aka the devil]. Priests who participate in ecumenism will have Pagans walking on their heads in hell. Arkhimandrite Antonin Kapustin left a prophecy that Church of All Russian Saints in Gorny Monastery, Ein Karem, Israel will be blessed by forerunner of antichrist; Patriarch Kirill of Russia and Mark of Berlin blessed this church in 2007. When priests pray for current gov't (instead of praying for future Tsar),Jesus gets up from His throne and turns His back to them. Forgive me.
?
2019-08-06 17:50:06 UTC
Raw is what the camera sees noise details,



JPEG is what the camera edits, and so is



Compressed, photoshop can fix both within



Reason.



Thanks



Very best wishes



Mars



Source:) Photography School
?
2019-07-31 18:25:02 UTC
RAW files are files that have not been adjusted. The data flows from the sensor to the camera's CPU and is saved as a RAW file. There many different RAW file types such as DNG, Pentax's PEF, Canon's CF2 and Nikon's NEF. All are RAW files.



RAW files, as stated earlier, have not been processed or adjusted. Therefore they must be processed in some way in order to get the most out of the file. This is usually done by adjusting the color, contrast, white balance, sharpness and noise reduction as needed. For this reason, a RAW file will almost always look less appealing than a JPEG file even when shooting RAW+JPEG.



RAW files can be adjusted in ways not possible with JPEGs. For example, color balance is fixed with JPEGs, but not so with RAW files. IF you shoot outside under daylight conditions while the camera's white balance has been set for, say, fluorescent, you'll end up with a heavy magenta color cast on all of your shots that cannot be removed. Do the same thing with a RAW file and you can easily adjust the image to perfect color every time. This is due to the fact that RAW files save color and brightness data as separate values while JPEGs combine them into just one.



RAW files do not have to be compressed while all JPEGs must be compressed to some degree. And when you do decide to compress a RAW file, the compression algorithm is lossless - not so with JPEGs. To make matters worse, every time you edit a JPEG, the image is re-compressed reducing image quality (albeit very slightly).



All JPEGs must be 8-bit files which means that they must have 256 tones from pure black to pure white per RGB channel. RAW files can be as high as 32-bit files, but usually they're 12-14 bits with some cameras shooting at 16 bits. Going from 8 to 14 bits may not sound like a lot, but consider that each bit doubles the number of tones per RGB channel. So while an 8-bit file has 256 tones (2^8 = 256), a 14-bit file has 16,384 (2^14 = 16,384) tones. That means simply by shooting the scene as a JPEG, you're throwing away 98% of the data that the sensor collected compared to a 14-bit RAW file.



So where is all of this "extra" data, you may ask? It's in the ability to color correct as I had stated, but it's primarily in the your capability to open up shadows and pull down the highlights. The bulk of the data is actually in the ability to open up shadows. Once converted to JPEG, all of that data is gone and you can no longer edit the file to anywhere near the same degree as a RAW file.



Now, once you edit your RAW files to the best that they can be, converting them to a JPEG so that they can be printed does not necessarily mean that you'll have a noticeably lower-quality image. This is providing that the amount of compression used is the lowest possible setting, along with the algorithm used to do the compressing is a good one. For example, the algorithm used by Facebook and Flickr is pretty bad when compared to what's used in Adobe Photoshop or Lightroom. This is why so many people complain about their images looking horrible once uploaded to social media even though they looked good on their computers.



Whether to shoot RAW or JPEG is a personal choice. Many professionals shoot RAW for the massive increase in control of editing their images. Others prefer to shoot JPEG so as to not to have to spend time editing the images in post. Photojournalists and high-volume portrait photographers often will shoot JPEG simply to avoid spending time in front of a computer; time that they would rather spend behind a camera making money.
?
2019-07-31 17:04:54 UTC
Speaking more from graphic arts than photography. Jpegs are compressed, as they say. More accurately, they are "trimmed" and how and how much depends on the file type - jpg, bmp, png and all the others. Mostly it's done by interpolation - every other pixel is removed and the colors of the surrounding pixels are toned to compensate. For some files many pixels are removed and the others are adjusted. You can't cut the file size in half, or more, without something going into the garbage can.
Steve P
2019-07-31 13:33:55 UTC
BriaR already gave you a good explanation of the differences between raw and jpeg, but I want to add this. You cannot shoot in raw and POOF, have better photos. Raw gives you the CAPABILITY of having much better photos than jpeg. The raw file is just the first step. YOU have to learn to use raw conversion software to pull the best from the raw data. This takes time and effort to learn to use this software. Any camera that has the ability to shoot in raw also will come with software to adjust and convert those files to jpeg or tiff as a finished product, however, most manufacturer's raw software is typically not all it should be. Better alternatives exist from 3rd party software, Lightroom and Photoshop and Capture One being 3 of those alternatives. I have been a long time user of Capture One and it is by far my favorite. I have tried the Canon "Digital Photo Professional" raw software and find it can do a decent job, but still not capable of giving the results of Capture One.



So, keep in mind that if you want to try shooting raw, it also entails a learning process and considerably more time and effort than shooting jpeg... but... in my opinion, totally worth the effort.
BriaR
2019-07-31 11:36:47 UTC
When you take a photo with a digital camera a huge amount of data is captured.

Software in the camera applies preset parameters to this data to generate a jpg image file and then throws away the raw data.

BUT if you save that RAW data you can manipulate it to improve the quality of the final jpg image. Because changes like white balance adjustment, contrast, sharpness etc are done on the original data the results are much better quality images.

Additionally, you can correct operator errors! Example...

I was shooting in black and white, put the camera away and went out to shoot wildlife. After the first few shots I realised that I had forgotten to switch back to colour. Because I had saved the RAW files I still had all the colour data but it just wasn't being shown. So when I processed the RAW files I could switch the colour back on and save the shots! Believe me Kingfishers are much better in colour than black and white!!
keerok
2019-07-31 08:48:46 UTC
RAW is what the digital sensor has captured, ideally unaltered. RAW files are huge (filesize-wise). Not everyone needs such huge files though so cameras offer to compress the pictures to JPEG to make it smaller and easier to handle. In small screens, both pictures may look alike but when blown up and zoomed in on larger monitors, you will see the differences.
Jubby
2019-07-31 05:24:16 UTC
Raw=raw

JPEG=jpeg


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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