| Author | Thread |
|
|
10/21/2002 10:28:25 AM · #1 |
I have realized with this weeks submittal that I need some help with Post-Processing of my shot. My entry is only about 75kb this week and with the low light and such it shows in the quality of the shot. I use a Kodak DX3900 which shoots in 3.1 MP resolution. I use Paint Shop Pro 7.0 for processing. I've learned a lot since coming to DP CHallenge but I need to be able to compress or save with a higher resoloution, nearer the 150 kb allowed. Could someone help me with this?
My shot this week was shot at highest resoloution. It was originally at 499 kb. I used "Image" and "resize" to get it to 640 X 427. I don't know what to use to keep the compression quality high. I am open to any help. |
|
|
|
10/21/2002 10:46:30 AM · #2 |
Originally posted by DougPaz:
I have realized with this weeks submittal that I need some help with Post-Processing of my shot. My entry is only about 75kb this week and with the low light and such it shows in the quality of the shot. I use a Kodak DX3900 which shoots in 3.1 MP resolution. I use Paint Shop Pro 7.0 for processing. I've learned a lot since coming to DP CHallenge but I need to be able to compress or save with a higher resoloution, nearer the 150 kb allowed. Could someone help me with this?
My shot this week was shot at highest resoloution. It was originally at 499 kb. I used "Image" and "resize" to get it to 640 X 427. I don't know what to use to keep the compression quality high. I am open to any help.
Once you've finished editing it, do this:
File menu- save as
Then select 'Save as Type ': JPEG - JFIF Compilant'
Then select 'Options' and you'll get the 'quality slider' box
In that select 'Run Optimizer'
This will show you a 'before and after' version of your shot.
Change the compression value in the 'quality' tab until the
file size shown beside 'Compressed' is close to but below 150,000 bytes.
The higher the compression number, the more compression and the
lower the quality.
Hope that helps. Also try really hard to avoid saving something as
a JPEG more than once, as the compression errors build up. If you
want to save your work in the middle and come back to it, save as a
TIFF file - and never write over the original if you can avoid it.
I can see the problems in your shot - particularly around the knee
on the pink clothes and the water bottle on the ground - both show
blocky artifacts from over-compression of JPEGs.
* This message has been edited by the author on 10/21/2002 10:46:51 AM. |
|
|
|
10/21/2002 11:05:11 AM · #3 |
Thanks a bunch, that seems to help a lot. I'm playing around with it now to learn more. I sure wish I had asked this before I submitted my current shot.
That is what is great about DPC is the ability to learn things so quickly with all of the helpful folks around here!! |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 08/26/2025 01:34:50 PM EDT.
