On 30 Apr, 15:35, "Roy G" <roy.gibs...@[EMAIL PROTECTED]
> wrote:
> Exactly why do you want to store these "Blurry" images at a low res.
As I said, in order to save disc space. It is also about memory and
processor usage. Of course, many things can be solved by using
hardware power but that is really not elegant. Why should I store and
work with images at an uanppropriately high resolution?
> I presume that, making them low res means you do not intend to use them
> again.
Yes, I am going to use them again. I am not storing them at low res
(whatever that means) but at lower res. Simply at the highest
resolution that makes sense. This has nothing to do with the intended
use or output technology. It is simply a matter of what information is
actually contained within the image.
> It strikes me that if they are not worth keeping at a usableresolution,
> they are not worth keeping.
They are not totally blurry, just a bit. In fact, almost all images
that come out of a digital camera or scanner at a high resolution are
slightly blurry (in relation to the pixel size). This means that they
can be downsampled without ant loss of visual information
On 1 May, 03:57, Joe <j...@[EMAIL PROTECTED]
> wrote:
> For displaying then sure you may be able to reduce the size but
keep
> quality acceptable for viewing, for printing you may be able to boost
the
> pixel (using some trick *not* by increasing either W, H, or PPI) for
> *little* better or larger print etc.. other than that we have to live
with
> whatever the original may be.
Sorry, I am not able to make any sense of that.
I am a bit surprised that it is so difficult to explain what my
concern is. To me it is only natural that you do not want to work with
images that are at an unreasonably high resolution. Here
"unreasonably" means that the resolution does not correspond to the
actual sharpness of the image. I do not mean unreasonable in respect
to the intended use. This is purely a matter of information
processing. Even though we have pretty big hard drives and fast
computers now, I believe it is wrong to have too much junk data on
your system. If have an 8 megapixel image on my computer that I can
downsample to 2 megapixels without a loss then I should definitely do
so. This does not mean that the image is so blurry that it is totally
useless, sharp 2 megapixels are quite useful and preferable over
slightly blurred 8 megapixels.
|
