PentaxForums.com

Go Back PentaxForums.com > Photography > Post Processing, Printing, Software, and Darkroom > Increasing image size (just a bit): Upsampling / Uprezzing

Post Processing, Printing, Software, and Darkroom Discuss photo printing, scanning, editing, and enchancement methods here.

Reply
 
Thread Tools Search this Thread Display Modes
05-30-2009, 07:55 PM   #1
Site Supporter
 
Location: Tsawwassen, BC, Canada
Gallery Photos: 14
Posts: 183
Increasing image size (just a bit): Upsampling / Uprezzing

I do apologize if this subject has been discussed ad nauseum, but after my research on the 'net I essentially haven't found an answer for my want.

For those of you who increase your image sizes, what is the better method for doing so with the obvious criteria of minimal detail loss and artifacts appearing. I'm looking at a small increase in file sizes of maybe 110% - 135% of the original image size.

Of course, if there's a freeware app out there that accomplishes this, I'd love to know about it.

Thanks.
kcmadr is online now  
05-30-2009, 10:57 PM   #2
Site Supporter
 
Location: The wheatfields of Canada
Gallery Photos: 0
Posts: 3,609
In Photoshop:

Image/Image Size

Either input a %, or the image size in inches or centimeters and ppi that you want.
Choose bicubic smoother and click OK.
Wheatfield is offline  
06-23-2009, 10:30 AM   #3
New Member
 
Location: Porto/Funchal; Portugal
Gallery Photos: 0
Posts: 22
My method of choice is upsampling in camera raw (I shoot RAW exclusively). You mention freeware, if you don't have photoshop and don't shoot raw you should try Irfanview. It gives you a few upsampling methods to choose from...
pedrojoper is offline  
06-23-2009, 12:32 PM   #4
Site Supporter
 
Location: chicago
Gallery Photos: 5
Posts: 894
Genuine Fractals is the best i've seen, better than photoshop. If you don't have photoshop it might be a good alternative. you can download a free trial from

onOne Software - Genuine Fractals 6

if you or a family member is a student its less expensive

Genuine Fractals by onOne Software at Academic Superstore
ivoire is online now  
06-23-2009, 01:10 PM   #5
Site Supporter
 
Location: Tsawwassen, BC, Canada
Gallery Photos: 14
Posts: 183
Originally Posted by pedrojoper View Post
My method of choice is upsampling in camera raw (I shoot RAW exclusively). You mention freeware, if you don't have photoshop and don't shoot raw you should try Irfanview. It gives you a few upsampling methods to choose from...

I have recently found that I get good results using ACR, doing my edits, going to CS4, doing further edits as required, and then sharpening and downsampling again.

ACR Seems to do the trick so far, and I already own it so I'll stick with it.

kcmadr is online now  
06-23-2009, 02:55 PM   #6
Site Supporter
 
Location: Canada eh!
Gallery Photos: 7
Posts: 526
Originally Posted by ivoire View Post
Genuine Fractals is the best i've seen, better than photoshop. If you don't have photoshop it might be a good alternative. you can download a free trial from

onOne Software - Genuine Fractals 6

if you or a family member is a student its less expensive

Genuine Fractals by onOne Software at Academic Superstore
Genuine Fractals was just tested in the June 2009 Shutterbug Magazine.

Click Here for the article.
Leaf Fan is online now  
06-23-2009, 03:15 PM   #7
Site Supporter
 
Location: chicago
Gallery Photos: 5
Posts: 894
Originally Posted by kcmadr View Post
I have recently found that I get good results using ACR, doing my edits, going to CS4, doing further edits as required, and then sharpening and downsampling again.

ACR Seems to do the trick so far, and I already own it so I'll stick with it.

if you have CS4, try this: open image size, enter 375 for the resolution and increase the size (height/width) by 20-30%, select Bicubic Sharper (best for reduction) and click ok. it does a pretty good job at increasing the image size. Bicubic Sharper (best for reduction) may seem like an odd choice, but it works

Last edited by ivoire; 06-24-2009 at 07:38 AM.
ivoire is online now  
06-26-2009, 01:51 PM   #8
Senior Member
 
Location: Grimsby, Ontario, Canada
Gallery Photos: 9
Posts: 145
I like to print at 300dpi so my method is as follows:

Open JPEG in PS
Choose crop tool
Set width and height to final print dimensions
Select 300 DPI resolution
Crop
Sharpen
Save
Lazaruscomeout is offline  
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
1.53× vs. 1.54× (or even 1.57×) and actual image size mattdm Pentax DSLR Discussion 0 05-23-2009 07:44 PM
Actual RAW file size and recordable image number Matjazz Pentax DSLR Discussion 12 04-01-2009 05:33 PM
Photo image size from my K200D fractal Pentax Beginner's Corner Q&A 7 01-11-2009 09:51 AM
K10D Image Sensor Size rormeister Site Suggestions and Forum Help 1 12-02-2007 11:27 AM
Maximum Printed Image Size vs ISO - Successful or Not? Sideways Post Processing, Printing, Software, and Darkroom 6 08-08-2007 12:00 PM


All times are GMT -7. The time now is 02:15 PM.