(Sorry was meant to reply to the list as well) Thanks Nadav. I'll try the %90 and %95 option. Trouble is that I need to hand the disk-on-key over to the courier in a couple of hours so might just stick to un-recompressed if it still fits.
> On 20 June 2012 16:37, Nadav Har'El <n...@math.technion.ac.il> wrote: > >> On Wed, Jun 20, 2012, Amos Shapira wrote about "Re: Digikam image >> re-compression - is it reliable?": >> > They are in JPG, not RAW. exif is copied over. >> > Minimal compression setting (whatever that means on the camera's user >> > interface). >> >> It is possible that the "minimal compression" option exists not because >> it is recommended, but because the marketing people demanded it, and >> you're actually supposed to use the better compressed options named >> something like "fine" or "normal" or something. >> >> Just as an example of what you might be wasting, I took a 12 megapixel >> (3000x4000) family photo, and saw the following sizes: >> >> 8.9 MB - lossless compression (PNG) >> 4.2 MB - JPEG at 100% setting >> 3.5 MB - JPEG at 99% setting >> 2.4 MB - JPEG at 95% setting >> 1.8 MB - JPEG at 90% setting >> 1.4 MB - JPEG at 85% setting >> 1.1 MB - JPEG at 80% setting >> 0.8 MB - JPEG at 75% setting >> >> So as you can see, you can indeed significantly reduce your file size by >> not insisting on "minimal compression" (if that means lossless >> compression, or JPEG at 100% or 99% setting) you can achieve a much >> better compression. I'd go with 95% or even 90% and don't think you'll >> ever notice a difference (though I don't presume to be an expert on the >> subject). I wouldn't go down to 75% unless you're really short on space- >> remember that in 10 years, you'd be laughing at these sizes which you >> once thought were large ;-) >> >> Nadav. >> >> -- >> Nadav Har'El | Wednesday, Jun 20 >> 2012, >> n...@math.technion.ac.il >> |----------------------------------------- >> Phone +972-523-790466, ICQ 13349191 |A fine is a tax for doing wrong. A >> tax is >> http://nadav.harel.org.il |a fine for doing well. >> > > > > -- > [image: View my profile on LinkedIn] > <http://www.linkedin.com/in/gliderflyer> > > -- [image: View my profile on LinkedIn] <http://www.linkedin.com/in/gliderflyer>
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