jonnyhough
asked on
Image Optimisation
Hi,
One of our clients has asked us to try and reduce file sizes on some of their pages.
One area we are going to aim at doing this is by further reducing the size of the gifs/jpegs used on the site.
We work from PSD's which we cut up where necessary then optimise using the save for web functionality.
In an effort to get the best results we have done a few tests using Fireworks (1.0) and have noticed that it seems to produce better results than Photoshop. For example a jpeg with quality set at 60 in Photoshop and 60 in Fireworks is dramatically smaller.
I was wondering if this is correct or if what Fireworks refers to as quality 60 Photoshop refers to as quality 40?
Put simply is Fireworks more efficient at image optimisation - it would be great if someone could provide hard evidence as for us to start using Fireworks for image optimisation would add to our development time.
Many Thanks in advance.
One of our clients has asked us to try and reduce file sizes on some of their pages.
One area we are going to aim at doing this is by further reducing the size of the gifs/jpegs used on the site.
We work from PSD's which we cut up where necessary then optimise using the save for web functionality.
In an effort to get the best results we have done a few tests using Fireworks (1.0) and have noticed that it seems to produce better results than Photoshop. For example a jpeg with quality set at 60 in Photoshop and 60 in Fireworks is dramatically smaller.
I was wondering if this is correct or if what Fireworks refers to as quality 60 Photoshop refers to as quality 40?
Put simply is Fireworks more efficient at image optimisation - it would be great if someone could provide hard evidence as for us to start using Fireworks for image optimisation would add to our development time.
Many Thanks in advance.
ASKER
Hi Weed,
Many thanks for the information.
Do you know if there exists any documentation to back up your points?
I want to be able to explain to my company why I don't think the extra time required to export to fireworks is a worthwhile investment.
Thanks again.
jonny
Many thanks for the information.
Do you know if there exists any documentation to back up your points?
I want to be able to explain to my company why I don't think the extra time required to export to fireworks is a worthwhile investment.
Thanks again.
jonny
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ASKER
we are basically using all the features i am aware of in photoshop (as you listed above) and i've always been happy with the results. the problem i have is that from my naked eye i find it hard to compare the quality of photos and any comparison is fairly subjective. my thinking on the subject is that when it comes down to it both programs have to use the same math/algorithms so i therefore find it hard to believe that one can perform better than the other.
thanks for the information
thanks for the information
They dont have to use the same methods. Theyre probably close but Adobe likes to play with that kind of stuff to squeeze just a little more out of it. Probably wont make any real difference for you in the long run.
2) Photoshop is probably better at image optimizing but you do need to play with the other options in the Save For Web dialog to get there. Number of colors, compression slider, progressive, etc etc.