Explaining Image File Formats

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Image file formats and related concepts explained, including raster vs vector graphics, colour spaces and alpha channels, and bit depth. File formats covered include JPEG, PNG, GIF, TIFF, PSD, RAW, AI, SVG, EPS and PDF.
If you find this video useful, you may also like my episode “Explaining Digital Video: Formats, Codecs and Containers”: • Explaining Digital Vid...
Also of interest may be my latest video on the DaVinci Resolve free video editor:
• DaVinci Resolve 17: Th...
. . . on the Inkscape and Affinity Designer vector illustration packages:
• Adobe Illustrator Alte...
And on Linux Photopshop alternatives:
• Linux Photoshop Altern...
More videos on computing and related topics can be found at / explainingcomputers
You may also like my ExplainingTheFuture channel at: / explainingthefuture
Chapters:
00:00 Introduction
00:44 Key concepts
04:47 JPEG
05:59 PNG
06:57 GIF
07:33 TIFF
08:26 PSD
09:15 RAW
10:31 Other Raster Formats
11:06 Vector Formats
12:55 The Best Format
#ImageFormats #FileFormats #ExplainingComputers

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Опубликовано:

14 июл 2024

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Комментарии : 623

@mystarstudios 2 года назад

You have a god-given talent for breaking down the complicated into simpler conceptual parts. I have been working with image files for the past 50 years and although I understand the difference there is no way I could explain it as well as you have in this video. Thank you!

@MichelMorinMontreal 2 года назад

I agree wholeheartedly!

@Paddy_Roche 2 года назад

Perfectly put.

@thehappycoder3760 2 года назад

Yes

@KTHKUHNKK 2 года назад

He absolutely does explain it well. It is still very hard for me to understand all this. WOW But I am trying.

@003somnath 2 года назад

This guy's bucket is always full of content and it will never empty.. Thank you for sharing your never ending knowledge with us..😍😍

@mrkitty777 2 года назад

And he has a virtual cat 😸

@paulvanobberghen 2 года назад

Nice thing about SVG is it’s an XML text tag based document, which means it has a DOM that can be manipulated via scripting (JavaScript most likely) or even CSS. Very useful for the web. Several JavaScript libraries exists to do so.

@ExplainingComputers 2 года назад

Yes, agreed -- SVG is a really great format.

@dnoodspodu1159 2 года назад

Whenever I download a SVG and open it in CorelDRAW, I have to ungroup [unlock] it - and then have to remember to remove some empty objects [clutter]. Thus I really do not like that format, as I also had some issues exporting my Corel works to it

@WildWestDesigns 2 года назад

Bare in mind what vector program one uses to open files. Inkscape will ignore non spec svg-xml markup, while Ai and Draw will delete. I have add-ons that store info in the markup, if I open in Ai/Draw etc and re-save that info is lost. Inkscape will just ignore. Keep that in mind if using add-ons from Inkscape, but Ai and others are used in the pipeline as well.

@HPerrin 2 года назад

It’s also a really great format for icons, since you can embed an SVG image in an HTML document. No additional download required, and no data: URI needed.

@WildWestDesigns 2 года назад

@@HPerrin also can use JS for interactivity as well. I had created audio player controls once using SVG. So much better compared to the built in ones.

@Remington510 2 года назад

I wonder how many subscribers unsubscribed when they heard, that Chris is in the "GIF" camp, not "JIF" :P SVG is awesome, this format can do a lot of tricks that are not widely known, especially in web development. It's worth mentioning that SVG is basically a text file, you can open it with a notepad and embed in your website without using the file and later animate it by manipulating the data over time with scripts.

@alliejr 2 года назад

Chris is correct!

@TheRenHoek 2 года назад

@@alliejr No one is correct. The author of the GIF file format prefers jif, but the oxford english dictionary says both are acceptable.

@Rationalific 2 года назад

@@TheRenHoek You're right that both ways are acceptable, but personally, I don't really care what that author of the GIF file format prefers. Some people think that whatever he says is the law. However, in my opinion, there are two even greater laws that supersede what he prefers, and those are the fact that "Graphics" has that "hard G" sound, and the "hard G" also agrees with general English phonology. Thus, I find it nonsensical to veer from that and make it sound like a "J", despite what the author thinks. I could come up with the "Conscious Algorithm Technique", or "CAT" for short, and if I try to get people to pronounce "CAT" as "Sat" ("C" as in "Cindy"), then I'm the weirdo.

@michaelwright2986 2 года назад

@@Rationalific People are always right about how their own names are pronounced, and so by extension you could say the giver of a name is also always right. But if you expect consistency in English spelling, and so consistency in the pronunciation of words that start in written form, I'm afraid you're making a giant mistake, as gigantic as putting ginger in your gin.

@dnoodspodu1159 2 года назад

@bfapple 2 года назад

Fantastic to finally understand the typical use cases for each file format. I work with pngs a lot, it's good to finally understand what the "alpha channel" actually means.

@andrekz9138 2 года назад

This video is timeless. People will continue seeking this particular condensed, informative content for years to come

@SiphesihleKhoza 2 года назад

I missed these explaining videos... Please make more and more :) They are one of the reasons i fell in love with the channel some 7 years ago :)

@ExplainingComputers 2 года назад

Thanks! I always like returning to this type of content.

@JendaLinda 2 года назад

Very informative video! PNG format is very versatile, it actually supports 16 bits per channel. Additionally, it supports low bit depths down to 1 bit per pixel for images consisting of fewer colours. TIFF provides some interesting features too. For the most interesting feature, TIFF may include more pictures (pages) in a single file.

@MichaelGustavsonArchitect Год назад

I think .png supports layers. This wasn't mentioned in the video.

@aaa-os3pj Год назад

@@MichaelGustavsonArchitect it was mentioned

@djzio 2 года назад

Professor Barnatt, this content not only was as informative on a grand scale as always, but gave me a good start to my day. I've needed to engage my brain. Despite being in the imaging industry for over 40 years, I had never heard image file formats explained so well. Thank you.

@Ynhockey 2 года назад

My favorite part in these videos is that even when I know everything, it's still interesting and deserves watching until the end. Great job as usual with this video. Surprised that Webp wasn't mentioned, given that it's the only relatively-common format, as far as I know, that has been invented recently.

@JosephXFS 2 года назад

Thanks for being the most straight to the point tech tuber.

@brentlaube568 2 года назад

Mr. Scissors always gets a moment in the spotlight. Love it!

@RoyNeeraye 2 года назад

My favourite moment of the day! Thanks again for another awesomely instructive and entertaining video, Chris.

@otakuribo 2 года назад

You're like the Techmoan of computer topics, thank you so much for putting out basic explainers like this!

@elementbr 2 года назад

A perfect way to relax on a Sunday evening, an Explaining Computers video. :) I always look forward to these.

@anthonymccarthy4164 2 года назад

Everything you ever wanted to know about image file formats but were to intimidated to ask. Very useful for we the confused.

@davidhardaker192 2 года назад

A great collection of information that is hard to find in one place - thanks Chris

@kyoudaiken 2 года назад

As always a nice video that I can send around friends who were wondering what the difference of all those file formats actually are! Thank you Chris and please stay healthy in those weird times!

@nin6246 2 года назад

This channel is absurdly useful and informative. Thanks for the great and important content!

@jamesdinsmore9022 2 года назад

What an excellent and understandable presentation of such a complex subject!

@MicrobyteAlan 2 года назад

Excellent, interesting and well presented. Information I needed right about now. Thanks from my 3D printer lab in Orlando Florida 👍👍

@ExplainingComputers 2 года назад

I take is that 3D printing is going well then?! :)

@MicrobyteAlan 2 года назад

@@ExplainingComputers- yes thank you. I’ve even printed a design I created in fusion 360.

@ExplainingComputers 2 года назад

@@MicrobyteAlan Cool. I'm starting to work on my photogrammetry video (photos to 3D models) -- I think you may well experiment with this too!

@MicrobyteAlan 2 года назад

@@ExplainingComputers - excellent, looking forward to that. 😊

@Pekitos 2 года назад

@@MicrobyteAlan @ExplainingComputers I will follow by near to see what you will be creating. A good subject to working on is more 3d printing.

@SLATEB0Y 2 года назад

Another great video. Been dealing with these formats since windows 95 and you still educate me with clarity and thorough explanation . Thank you

@Oharafolk 2 года назад

So nice explanation! Thanks so much every time is a joy to see a video from you!

@captainkeyboard1007 Год назад

This forum about digital imaging makes me appreciate the microcomputer more and more. I am beginning to acquire some desire to work with photographs like I do working with text. Thank you for presenting this forum on RU-vid.

@_Digitalguy 2 года назад

So glad I could learn several new things from this video, despite believing I already knew this stuff pretty well!

@LMacNeill 2 года назад

Thank you for pronouncing GIF correctly. 😊

@jxchamb 2 года назад

I feel so much smarter after watching your videos. Thanks for the knowledge!

@senior_ranger 2 года назад

Outstanding overview --- much thanks. This should be required viewing for every visual artist.

@robertdocherty6127 2 года назад

Just so glad that I found your channel. Thanks again. Now I'm going to get a coffee and watch another of your video tutorials. Great stuff

@damonbombino1237 2 года назад

Thank you for taking the time to teach us the wonderful world of computers

@reggiep75 2 года назад

It's been a long time since I did my graphic design training and then work (starting in 1992), but from working at a printers, that did its own design work and processing of customers work, you soon learnt which raster & vector formats were industry standard and favoured. If a customer was supplying photos or vector images, you indicated that it would be best to supply them as a specific format for reasons like CMYK for full colour printing and having the alpha channel which was often used to make masks if there was further processing needed. I'm a general RAW, PNG and SVG user these days when I do work as they can be processed or converted all across the board by a number of programs with no further quality losses. Another great vid 👍

@hassanlearning4086 8 месяцев назад

I found understanding image formats on different platforms challenging, but your tutorial made it easy. Thank you.

@arazriel 2 года назад

Another great video from Chris, thank you so much!

@ciokas 2 года назад

For educational purposes XPM and PPM file formats are great. They both can be opened by text editors one can easily inspect and alter the color of every single pixel. XPM has an added bonus that one can easily create ASCII art with it.

@Mixesha001 2 года назад

Always a pleasure to learn with such clear explanations. Thanks as always for your content.

@Martin_from_SC 2 года назад

Very well explained and accurate - I've been a digital prepress tech for over 20 years and have come in contact with all of those and more!

@rexjuggler19 2 года назад

Excellent overview of file formats and a very good selection to narrow down the important points. I could easily use this video as a reference starting point for new hires. Having worked in the print industry for over 20 years and now healthcare (radiology IT) for the past 15, a good understanding of image file formats and lossless vs lossy compression as well as RGB vs CMYK knowledge is indispensable. Well done, Chris!

@ExplainingComputers 2 года назад

Thanks for this. :)

@johnbaldwin143 2 года назад

well explained in a non-complicated way. I am an old IT tech but still learned some details I had not considered. Thank you for offering a layman's description of file formats!

@jls9225 2 года назад

Another great video as usual, this time on photo extensions. Thank You, As Always, Be Smart and Stay Safe.

@robinbrowne5419 2 года назад

A great Explaining Computers episode. I always wondered about these different file formats 🤔 Thank you 😊

@PS_Tube 2 года назад

Interesting video Chris. As someone who works with images, it's nice to see this topic greatly explained particularly the lossy compression. BTW, isn't it Leica and not *Lecia* ?

@ExplainingComputers 2 года назад

Thanks for this. Looks like I got Lecia wrong -- I think there is a law that whenever I make one of these types of video, a typo sneaks in somewhere.

@monchiabbad 2 года назад

@@ExplainingComputers well we're all a bit dyslexic due to video creation stress ;-)

@ShinobiDiabolik 2 года назад

Hello Christopher, Thank you for the excellent explanation. It is sad that such good quality and informative videos like yours are rare, but your videos offer superb value.

@MrMoonpie001 2 года назад

While it seems very easy and simple, understanding these concepts and how they work often are the cornerstone if a project is going to work or not!! I recently got a new monitor, using most of my computer time editing photos. The monitor I chose was the BenQ3200 which has a 10 bit depth RGB perfect for me to see as close as I can the product before it prints. Now this monitor is no good at all for a gamer of someone who watches lots of streaming it has been spectacular at representing my printed product to a very high degree. I also want to congratulate you for giving "Mr. Scissors" a staring role in this video!!!!!! Thank you Chris for all you do!!!! Rich

@rudge3speed 2 года назад

You just touched the surface, but who can watch a seven hour video that explains the history of digital image generation starting from the first pixel! I hope this video gets more people interested in digging deeper, and thank you for making it.

@jehd2954 2 года назад

Another great video. So much information in a great format. Thanks.

@ahah8797 2 года назад

Chris. Excellent presentation, as always. I did not have an epiphany about image formats, however congratulations on a well researched presentation. I have taught image processing to graduate students for 13 years (I'm now retired) and one of the lectures covered image formats. Had i access to this presentation, I would have given my students the link. Best

@midnightwind8067 2 года назад

Well that explained a great deal. Another great one Chris. Thank You!

@johngangemi1361 2 года назад

Excellent concise guide on image file formats.

@kurtweber162 2 года назад

Very clear and interesting. I always enjoy your content.

@watchreadplayretro 2 года назад

Fantastic depth yet easy to follow and a joy to watch. And yes agree, you have a true talent. Your videos remind me of the early to mid 80s Computer courses on tv, yet with modern technology; whilst still mentioning core/origin tech which is handy too! There's a clear knowledge and passion in your delivery and on reading your about section, I can see that your ease of knowledge comes from a thorough grounding in it all as a longterm teacher and author. It's truely amazing to not be overloaded with facts but just to soak up so much information duing easy listening. I knew some of this but this was so concise and flowed it all together in a fascinating way. Thanks again for a wonderful channel, instant sub and will from now on will most likely just thumbs-up, but I did want to post this thanks.

@ExplainingComputers 2 года назад

Thanks for the sub -- and welcome aboard! :)

@WorldWorrier3273 Год назад

I am Really really Happy 😃 & satisfied 😌 to see 👀 that u don't miss anything at all in your video 🎥

@SyberPrepper 2 года назад

So much information. So many questions answered. Thank you.

@kevinshumaker3753 2 года назад

One of the first programs I ever wrote took an RLE encoded file from compuserve and displayed it in my 'wrapper', and converted RLEs into sprites on my C64. It was fun learning about the magic of images.

@Shawclough 2 года назад

Another great video I need to watch several times and share with colleagues.

@ExplainingComputers 2 года назад

Thanks -- and share away! :)

@walts555 2 года назад

👍Excellent summary and personal story at the end. I had a similar png epiphany years ago.

@srtcsb 2 года назад

Really excellent Chris. You've covered video file formats and now this for graphics... The two together make a 'can't miss' reference for content creation. Thanks for another great video. 👍

@ExplainingComputers 2 года назад

Thanks Steve. At some point I'll add audio formats, and maybe 3D ones too.

@JamsODonnell100 11 месяцев назад

@@ExplainingComputersYes, please!!

@Alifrom-Texas 2 года назад

Mr Christopher, just wanted to say you always bring very interesting videos here on RU-vid ! I am hooked on your channel !

@ExplainingComputers 2 года назад

Great to hear - thanks! :)

@ianperkins8812 2 года назад

Incredibly useful and well done!

@sid_gm1949 2 года назад

I learnt about image format in Photoshop school . Thank you for going in depth I appreciate that .

@thaernejem7317 2 года назад

Extremely useful information! Thanks Chris!

@joeg3950 2 года назад

Good to know information. Thank you for having it all in one video.

@KowboyUSA 2 года назад

Always the best computer oriented content 👌😃

@badisheffey4550 Год назад

Thank you for another great video. This is very helpful for us non-computer people!

@ProjectPhysX 2 года назад

Thank you! This video is an excellent overview on the image formats out there!

@saladamista8226 2 года назад

Very helpful video as always!

@wolfcrossing2734 2 года назад

Very informative, concise, Excellent! Thanks.

@PeteVanDemark 2 года назад

This video lit up a few LEDs in my mind. Thanks again!

@dodg3rii 2 года назад

I confess I came for the pronunciation of 'GIF'. I was not disappointed 😁😁 As a bonus, I learned a lot of stuff I thought I already knew. This guy is amazing!

@121Pal 2 года назад

…another fantastic video…thanks again, Chris…

@gusdanvaz 2 года назад

Very nice video. Thanks for the simplicity.

@jda20001 2 года назад

Outstandingly well done!

@ExplainingComputers 2 года назад

Thanks!

@davideloi9176 Год назад

Love your channel. I’m learning so many things!

@ExplainingComputers Год назад

Thanks for watching!

@MdFahimMuntasir 2 года назад

It's very helptful to learn File Format the way easily understand and without putting any effort. Thank you, Christ to showing us and teach us like a guidelines that is much appreciated and delivered certain knowledge with us. 😊😍😍

@geoffreynicholls2991 2 года назад

Excellent. Well done. Certainly shed more light on my images.

@One-Eyed-Willly 2 года назад

Thanks for the video. Keep up with the great work.

@MDNH 2 года назад

Thanks for sharing the knowledge ! Thanks

@davidmusk9605 2 года назад

Wonderful simple explanations of a difficult topic. Always enjoy the videos and have learnt a lot about the digital world. Keep up the good work.

@oliverbatt3559 2 года назад

Great video as usual, Chris. What would be fantastic at some point would be a video dedicated to looking at various open file formats and codecs for images, audio and video.

@AMDRADEONRUBY 2 года назад

Yay finally Sunday I'm ready have a nice week.

@fuselage03 2 года назад

Thank you for the lecture Chris, you are always awesome 😎

@lesliedeana5142 2 года назад

Thanks for another great explanation video - nicely broken down.

@ExplainingComputers 2 года назад

Hi Lesie. I hope all is OK with you.

@Colin_Ames 2 года назад

Excellent video as always, with clear explanation of the various formats. I ran afoul of the CDR format some years ago, when the Italian parent company of my UK, and then US, employer decided to produce drawings using Corel. Unfortunately, my employer wouldn’t spring for multiple copies of Corel Draw, so I was reduced to begging every time I needed something edited or printed.

@rogerkoh1979 2 года назад

Nice way to explain different formats. I use lots of SVG as we need the image to be sharp when zoom in. Most of my email i use jpg or png as email tend to limited attachment size. Thanks for another great show.

@pravatiacharya5921 2 года назад

I was waiting for this video after the video on Explaining Video formats and this video finally came :-)

@ExplainingComputers 2 года назад

I always get there in the end! :) Audio formats remains on the list. And then maybe 3D file formats.

@judsonleach5248 2 года назад

GREAT EPISODE! As Always! HOWEVER i really missed getting to see "Stanley, The Knife" today! lol Best Sidekick EVER !!! hahaha! - Cheers! - Judson & Buddy!!!

@S-I-T 2 года назад

Great resource. Thank you.

@Paddy_Roche 2 года назад

Fantastic information as always, very interesting thank you.

@path3359 2 года назад

Really excellent explanation.

@michaelmiller641 2 года назад

Thankyou, very useful! I've been using alpha channels without realising what they are!

@SJM2 2 года назад

Great overview Chris. I'm au fait with the minutiae of the audio world but graphics file formats were always a bit of a mystery - until now! Cheers.

@rpsmith 2 года назад

Excellent Video! Thanks!

@alanthornton3530 2 года назад

Thank you for another informative & interesting video, a good subject to help us expand our knowledge further.

@borja4015 Год назад

Wonderful explanations, I learned a lot. Thank you

@ExplainingComputers Год назад

@hassanrozh6579 2 года назад

Excellent video, thanks so much

@OldieBugger 2 года назад

Thanks for all this info. I've used files in most of these formats, but never knew the differences. Now I do (forgetfulness coming in 9,...8,...7,...). Well, anyway, I can (and probably will) use this as a reference manual later on.