What is Effective Resolution? Understanding Resolution and Pixel Density

Рет қаралды 3,284

Күн бұрын

What is effective resolution? When is resolution irrelevant, and more importantly, what is resolution in Photoshop? Understanding resolution and pixels should be simple enough, but actually, having the highest resolution isn't the be-all-and-end-all of image resolution. More than lines per inch, dots per inch, pixel per inch, and pixel density resolution, effective resolution explained should include the rationale behind these pixel density decisions and area resolution issues.
So, what is resolution? John Ross from the Art of Retouching talks about understanding resolution in Photoshop in the most clear-cut way. Learn all about pixel count, LPI, PPI, DPI, and anti aliasing in Photoshop and how they all come together in the real world depending on the kind of images you're working on - math, pizza, and bricks included.
0:00 What is Effective Resolution
0:24 Different Kinds of Resolution
2:10 Think of Pixels as Bricks
3:35 Effective Resolution: Crap! Now what’s this?!?
5:21 Enlarging Images
7:14 Think of Pixels as Pizza
8:52 When Resolution is Irrelevant
Part 1: The 300 DPI Myth - DPI, PPI and LPI
• 300 DPI Myth | What Ar...
Part 2: Bit Depth and Tonal Range
• What is the Bit Depth ...
Part 3: Resolution
• What is Effective Reso...
Part 4: Color Modes and Color Profiles
• What are Color Profile...
Digital Fundamentals Playlist
• Digital Fundamentals
Website: www.TheArtofRetouching.com
Finance on a Budget / @financeonabudget
Facebook Page: / theartofretouching
Instagram: / johnrossphoto

Пікірлер: 17

@TheArtofRetouching 3 жыл бұрын

Dont just watch this video. Add comments, and help us grow!

@animator---noob8939 Жыл бұрын

That pizza analogy was so good and really hit the hammer. Kudos

@PortableFun 3 жыл бұрын

So much research is done on these videos. Like and subscribe everybody.

@alseveron6558 3 жыл бұрын

Truly excellent - thank you! Liked and subscribed!

@cemmer1295 3 жыл бұрын

Too lucky to find you. Subscribed

@TheArtofRetouching 3 жыл бұрын

Thank you! Be sure to take a look at the videos I've released before this one. They all are part of the same Digital Fundamentals series, and each is a wealth of information. 😜

@nathanielscott6159 3 жыл бұрын

This guy is awesome

@BeeCreekPhotographySpicewood Жыл бұрын

Great info! I just wish the designers I was working with would understand this. Do you have any presentations about how to make images for really large prints for wall murals? 15' to 40' in size.

@hungtrieu9918 2 жыл бұрын

The video sound is pretty good, beyond my imagination

@riverlife5803 3 жыл бұрын

love the show but what i am looking for is a comparison of inkjets under $300 and which provides the best resolution. I am trying to buy and cannot determine which is best. any chance you do product comparisons and define which item produces the best quality pic? thanks!

@TheArtofRetouching 3 жыл бұрын

Thanks for asking. It's pretty easy to pick, as these days the Printer landscape is pretty barren for innovative products. As with Scanners, nothing new worth a damn is coming from either Epson nor Canon. As such, first I recommend Epson Expression Photo XP-970 as that's the only current 11 x 17 model. It still uses the same ink as my printer from 13 years ago, that I still use. It's also within budget. Please note: It SHOULD support papers of 13 x 19, but it doesn't, which is garbage. For that, you need to go over budget at $350 for Epson Expression Photo HD XP-15000. Only one more option left, is to go with Canon PIXMA iP8720 at $250 which is more reasonably priced with 13x19 paper support. Though, I've never owned a Canon. I would not even consider any other current models that I did not just mention. Other brands like Brother are more in the Laser Printer industry, and less in the Photography Printer industry.

@jerzyquintana252 3 жыл бұрын

Hi. I want to buy a scanner to scan many photos and my question is: more DPI = more quality ???????

@TheArtofRetouching 3 жыл бұрын

I'm sure someone will disagree with me (because, you know, internet) but they lie right on the box by saying 48bit, when that breaks down to being 16bit CMYK (16x4=48bit). Optical quality matters so much more. My scanner is 19 years old, and it's not like it's garbage, right? I see Epson has a v600 which is a throwback to a model 600 I had like 25 years ago (which was 17"x22"). It's only $230, so I say get that one, as the $1200 v850 may be a bit costly. I would say stay away from Canon, as all of theirs are under $100, which means the quality is likely not there. In fact, I may just pickup that v600 to see how well it does.

@RynaxAlien 2 ай бұрын

Lower resolution can and is better than higher

@TheArtofRetouching 2 ай бұрын

Alright, I'll bite.... Why?!?

@thedarkslide 9 ай бұрын

Equating resolution with pixel count is problematic. Why? Because all pixels are not created equally when taking an image. A camera with a color array filter featuring a 24MP sensor will resolve less than half the details a camera with 15MP without a color array filter (like a Foveon camera or a black&white camera) can resolve. My Sigma sd Quattro has a nominal pixel dimension of 20MP but it easily outresolves the details my 50MP Canon 5DsR can take. The resolution of a camera system should be measured in how many line pairs per mm of capture area it can resolve. My other comment on this three year old video: the statements on upscaling images are now basically outdated. With AI based upscaling, you can blow up older images to insane sizes without noticeable image quality loss.