* Carlos E. R. <robin.listas@telefonica.net> [11-05-21 09:08]:
On 05/11/2021 13.25, Anton Aylward wrote:
On 2021-11-05 00:48, Douglas McGarrett wrote:
Done with a high quality Panasonic digital camera. If I have to reduce the pixel count, how do I do that?
Well you're using JPG which has already reduced the quality compared to RAW or TIFF. You don't say what the size of the image is, it's pixel-count dimensions, only the file size.
He said it on another thread. It turns out it is not 36 GiB but about 100MiB. Then on another post here he said:
D> Here's a typical file: D> 2545345 Dec 31 2005 samsung tv.JPG D> So, you're right. I miscounted. It's more like 100 MiB--maybe a little less. D> There are 18 files.You do the math.
So 18 files at 2.5 MB makes 45 MB. *Some* mail servers can accept that size, but even if they do the recipient might reject it. So no guarantee.
My camera uses JPG as most, but not very much compressed; gimp compresses the same photo significantly more at the same Q factor. Must be a limit of the camera processor. Or a compromise (speed vs power).
has to do with sensor size and the degree of professionalism to which the camera is intended. My cameras offer multiple jpg and raw sizes and size of image on sensor, so somewhat complex. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet freenode What sort of day was it? A day like all days, filled with those events that alter and illuminate our times... all things are as they were then, but were you there?