DPI and resizing.

[Keyare]

DPI and resizing (http://www.graphicdesignforum.com/articles/DPI_resizing.htm)

[Driliquid]

whoa...... Now that was interesting.. and awesome..

Thank you

http://www.graphicdesignforum.com//emoticons/thumbsup.gif


Driliquid Studio (http://www.driliquid.com)- IdeasToReality
http://www.driliquid.com/images/devportlogo.jpg (http://www.driliquid.com)

[ampeter]

okay, awesome, but how did you do it?

just a new drawing?

[morea]

redraw it as a vector image.

I haven't lost my mind... it's backed up on disk somewhere.

LMAO @ everyone wondering how you did it keyare. Keyare and his mysteries.

http://www.cbcamerica.com/images/webshots/benjobanner.jpg
Graphic Design Heroes! Call me Captain Type Caster. I’ve fought off “The Evil Cosmic Sans” for year but it seems “Dr. Extreme Untalent” keeps bringing him back. I must find a way to defeat this evil creature.

Capt. Creative bring me those comps…

[Keyare]

LOL -Yup! It's redrawn in vector.

NowI have to clean up this thread!

[PrintDriver]

Key, and I was expecting you to say, Well, Photoshop has no 'convert to this' button but the Alien Version you have does. LOL.

PrintDriver is a grande format digital print dude. His advice/opinions may not apply to the 4color/offset/web world of printing

[Keyare]

LOL!

The 'Heal' brush was the latest improvement to photoshop based on Alien technology.
The 'Make a Cool Logo' and ''Convert Crappy Bitmap to Vector' were supposed to be
the next ones leaked to Adobe but they're still having problems with the
'Enhance Photo Like They Do In Cop Shows' feature.

I was watching Enemy of the state and saw the part where they did that. I was like WTF? I worked for a CCTV camera company and there is no such thing in the market. I belive they just crossed the 1 megapixel barrier. Holywood...

http://www.cbcamerica.com/images/webshots/benjobanner.jpg
Graphic Design Heroes! Call me Captain Type Caster. I’ve fought off “The Evil Cosmic Sans” for year but it seems “Dr. Extreme Untalent” keeps bringing him back. I must find a way to defeat this evil creature.

Capt. Creative bring me those comps…

[stockaphoto]

Is there a graphic designer that do not know this :confused:

[DavidLieb]

Here's a tip that may be handy:

A lot of digital cameras and stock photo sites give you images that are 72 dpi, but have very large dimensions. Here's how you shrink the dimensions and raise the DPI in PhotoShop:

1. In PhotoShop, click Image > Image Size
2. Un-check "Resample Image"
3. Change the Resolution to 300
4. Click OK

This will produce the largest image you can safely use for print publishing.

Take note that this trick will not produce satisfactory results on a regular image you take from the web. Even if its dimensions are large enough, the process of compressing an image for fast web download will mess up the way it looks when you get the final job back from the professional printer.

Have fun!

[PrintDriver]

Unchecking Resample is basic design knowledge.
Taking photos from the web (aka Google-images or client website) for print design is not proper practice anyway.
This thread was mostly to point non-design people to or for print newbs to illustrate that you can't upsample images for print.

[derekteixeira]

I am beyond confused... ugh. is there an easier way that someone can explain resolution/DPI to me?

[morea]

I'll give it a whirl... hope I can convey this properly.

DPI = dots per inch.

A graphic designed for the web displays the image using 72 dots (pixesl) per inch of graphic. That's the resolution monitors are set up to display.

If you take an image off the web and print it, looks all choppy (pixellated) because the recommended resolution for printing is (typically) 300 dots per inch.

So if the printer is trying to print with 72 dots what would normally be printed using 300, the image is going to look bad.

Does that make any sense?

[derekteixeira]

I'll give it a whirl... hope I can convey this properly.

DPI = dots per inch.

A graphic designed for the web displays the image using 72 dots (pixesl) per inch of graphic. That's the resolution monitors are set up to display.

If you take an image off the web and print it, looks all choppy (pixellated) because the recommended resolution for printing is (typically) 300 dots per inch.

So if the printer is trying to print with 72 dots what would normally be printed using 300, the image is going to look bad.

Does that make any sense?

this does make sense, but it leads me to my next question .. what then would you use for images for something like a magazine advertisement? or in the case of my autumn picture. if i want to get an image to use in it? cuase if i take it off a site like jupiterimages or a stock photo site, or google it will obviously be 72 DPI, but then again according to this thread a camera's photos will typically have 72 DPI also.. so what do you do? and how does resolution tie into all of this.

(i'm sorry i am asking really really stupid questions, i am just trying to learn)

[morea]

first of all, you can't just take images off the web and use them in your projects... they are not public domain, and are subject to copyright. It's a bad idea, so don't get in the habit.

If you need "stock photos" - i.e., images for an advertisement that you do not create yourself, there are cheap and free resources out there, but bear in mind that you get what you pay for. If you are designing an ad for a high end magazine, it's worth paying for a quality photo (you can normally pass the cost on to your client, in that case).

Here are some links to The Ultimate Resource Thread (http://www.graphicdesignforum.com/forum/showthread.php?t=42) and Free Stock Photo Sites (http://www.graphicdesignforum.com/forum/showthread.php?t=2830).

There are more helpful links in our resources section, which can be found here:
http://www.graphicdesignforum.com/forum/forumdisplay.php?f=23

[morea]

Now, I presume that you are using Photoshop to size and modify your photos, then placing them into a layout program like Quark or InDesign.

When you pull the stock photo into Photoshop, go to Image > Image Size
uncheck "resample bicubic" and change the resolution to 300 pixels/inch. (You can usually get away with a little less than 300 if you have to, but 300 is a good rule of thumb.)

That will show you what "finished" size your image can print, with as little math involved as possible. ;)

[derekteixeira]

Now, I presume that you are using Photoshop to size and modify your photos, then placing them into a layout program like Quark or InDesign.

When you pull the stock photo into Photoshop, go to Image > Image Size
uncheck "resample bicubic" and change the resolution to 300 pixels/inch. (You can usually get away with a little less than 300 if you have to, but 300 is a good rule of thumb.)

That will show you what "finished" size your image can print, with as little math involved as possible. ;)

okay cool. so then if i am working on a poster i should do.

New document>300 ppi
then i can just drag the image that i have now made 300 also into that poster and that's how it'll come out, right? what about if i try resizing the image will it become distorted dramatically? i assume it's much easier and safer to downsize then upsize... right? (this is really helping me out a lot.)

[morea]

It would probably be better to create the new document and then go File > Place.

Yes, it is typically better to go down than up when resizing an image, to avoid pixallation... but here, check out these threads:

http://www.graphicdesignforum.com/forum/showpost.php?p=144656&postcount=6

[MisterClips]

Talking more about the resolution thing. There are people at work today building interpolation algorithms based on reversing the process. Basically the idea is to take a clear photo at high resolution, downsample it and write an algorithm or series of algorithms that compares the differences. The goal is to later use those algorithms on a low res photo and have it build a few high res versions to choose from. It's not science fiction, I read the article on this in the early 90's. Who knows how far they've come since then.

[handsdown]

Just wondering where everyone goes to get there printing done. I do alot of Freelance and am looking for suggestions on great printers!

[morea]

The Reality of Resizing: Changing Image Resolution without Changing Quality

http://tinyurl.com/sutxh

[U2P_Matt]

I can't tell you how many times I have explained this. That is the clearest explanation I have seen.