downscaling images for web

BazEP

BazEP

Messages
590
Name
Chris
Edit My Images
Yes
help please
What's the best way of downscaling my images to post on here or other sites? I have no problems with the full res images either in basic jpeg or raw/tif but when I get them down to a size acceptable to this and other sites the image looks sh!te.

At the moment I am either (12mp pics from a D300):
1 - opening the raw with UFRaw in to the Gimp then save as jpeg either at 85% or 50%. Then opening with PictureIt to save for web and defining the max pixels and ensuring it is under 200kb.
2 - opening the basic jpeg with PictureIt and doing the same as the second part of 1 above.

I also have CaptureNX but find it slower than gimp so have tended not to use it.

any suggestions?

cheers
 
You could try a much easier way and use eazy thumbnail for the resizing. I suspect your final images don't look so good because they are not downsized with the best method (don't know what system picture it uses) but you could try resharpening slightly after downsizing, that somethimes helps.
 
Depending on how critical you are, it may not be helping that you're downsizing from a JPEG original, especially one that's saved at 50% quality. In so doing, you're re-compressing a previously compressed file, both times with lossy compression.

Try exporting as a TIFF from your RAW converter initially.

You are saving with an sRGB colour space tag for posting to the web? (not knowing exactly what it is that you're unhappy about - sharpness? colour? unwanted artefacts?).
 
Last edited:
Thanks Rob, I'll try going from .tif in future. It's specifically the sharpness.
 
I resize the jpegs once processed, resize to 800 px wide and in PS save them at level 7 out of 12 for quality (56-60%)
 
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