how to resize a photo

Are you having technical problem, computer playing up, post your problems here and we will help solve them
User avatar
birdy
Beginner! Talk to me!
Posts: 7
Joined: Tue Mar 26, 2013 5:25 pm

how to resize a photo

Postby birdy » Thu Mar 28, 2013 3:40 pm

Hi guys, I need to send something off to print but my printer has told me the resolution is too low :/ how do I fix this? I have photoshop on my computer but no idea how to use it :lol: :lol: :lol:

Please help! :roll:

User avatar
PlasticAnnArbor
Evangelist
Posts: 468
Joined: Wed Jul 02, 2008 7:23 am

Re: how to resize a photo

Postby PlasticAnnArbor » Tue Apr 02, 2013 7:11 am

if the original image is to small
use a bigger version of the original image

i do image enhancing for a living ( normally for USA & ESA spacecraft imaging data )
unless you have a very strong background in software and imaging theory and coding

you do not increase it's size
or if you do the results are rather BAD

That said

for just doubling the size there is a gimp plugin called "Resynthesizer"
http://www.logarithmic.net/pfh/resynthesizer
PHD theses code ( http://www.logarithmic.net/pfh/thesis )
it synthetically "inpaints" parts of the original to build up a sharper and larger image
but it will require you to build the software from source code and on a Linuix operating system ( not on Microsoft Windows)
-- it will build in Mingw on windows but not all of the scripts will work

some options

if it is a photo you scanned at 150 ppi ( pixels per inch ) AKA "Dots per inch " DPI
use 1200 ppi
or
any good photo lab can scan it at 1200 ppi or 2400 ppi
Linux
http://www.tldp.org/

alicePerry
Beginner! Talk to me!
Posts: 15
Joined: Fri Jun 21, 2013 7:30 am
Contact:

Re: how to resize a photo

Postby alicePerry » Tue Jun 25, 2013 8:24 am

these are cheaper when compared to the cost provided around brick and mortar stores.

ParthDhudhagra
Beginner! Talk to me!
Posts: 3
Joined: Thu Dec 03, 2015 11:55 am

Re: how to resize a photo

Postby ParthDhudhagra » Thu Dec 03, 2015 12:36 pm

For low quality printing at 150 dpi or maybe 300 dpi on an office printer, our 72 dpi Web graphic might just be OK, at a squeeze. For a magazine or brochure printed at 100% dpi, it's unlikely to be OK. The mismatch by a factor of eight or so is too big. When the Quark page goes through the RIP (Raster Image Processor) to make film for printing, the graphic is likely to get mangled and finish up looking very sorry for itself.

To get high quality output, these older RIPs must be spoonfed with higher resolution images. They want something of the order of 200 to 300 dpi to start with. So to get our graphic printed properly, somehow we have to boost its dpi to this kind of figure.

hoangbo93
Beginner! Talk to me!
Posts: 3
Joined: Fri Feb 26, 2016 7:24 pm
Location: Ho Chi Minh, Vietnam
Contact:

Re: how to resize a photo

Postby hoangbo93 » Fri Feb 26, 2016 7:37 pm

You can use GIMP or Photoshop

Meandmyself
Private Dancer (can now PM!)
Posts: 88
Joined: Mon Dec 12, 2016 12:36 pm

Re: how to resize a photo

Postby Meandmyself » Fri Dec 16, 2016 11:53 am

I like to use gimp too, it's free and pretty powerful

bidaddy
Beginner! Talk to me!
Posts: 2
Joined: Tue Apr 11, 2017 11:35 am
Contact:

Re: how to resize a photo

Postby bidaddy » Tue Apr 11, 2017 11:41 am

Click Image -> Image Size to resize it!


Return to “Computer Problem Solver”

Who is online

Users browsing this forum: No registered users and 2 guests