On Fri, 2012-03-23 at 17:17 +0100, Olivier wrote:
> The quality rate of JPEG is not a percentage, simply a rate between 0 and 100.
A number in the range 0 to 100 is actually by definition a
percentage ;-)
GIMP tries to detect the compression that was used for the original
image and uses those set
2012/3/23 Liam R E Quin :
> On Fri, 2012-03-23 at 21:52 +0100, Olivier wrote:
>
>> Considering the quality rating in JPEG as a percentage would mean that
>> a quality equal to 100 would be perfect, i.e. no loss at all.
> Nonsense. A "quality" of 100% means you have chosen 100 out of a
> possible 10
On 03/24/2012 12:50 AM, Patrick Shanahan wrote:
* Ofnuts [01-01-70 12:34]:
On 03/23/2012 09:20 PM, Liam R E Quin wrote:
every time you load and
save a JPEG file the quality is reduced and information is lost.
Not true... if nothing changes the algorithm is stable (decoded values get
re-encode
* Ofnuts [01-01-70 12:34]:
> On 03/23/2012 09:20 PM, Liam R E Quin wrote:
> >every time you load and
> >save a JPEG file the quality is reduced and information is lost.
> Not true... if nothing changes the algorithm is stable (decoded values get
> re-encoded to the same values). You lose quality i
On 03/23/2012 09:20 PM, Liam R E Quin wrote:
every time you load and
save a JPEG file the quality is reduced and information is lost.
Not true... if nothing changes the algorithm is stable (decoded values
get re-encoded to the same values). You lose quality if you recompute
something different;
> I've noticed that every time I save an image in GIMP as JPG the
> quality
> slider bar defaults to 85. Even though I keep changing it to 75. If
> this
> numeric value is a Photoshop equivalent like other GIMP features, then
> 85
> is probably a wasted effort. The research* I'm aware of* (note
>
Keith Purtell wrote:
I suppose the reason I didn't go the preview route is that I'm a bit
annoyed that GIMP doesn't remember that I've changed that setting to 75
every single time I've made a JPG. Now that you suggest it, I could run
a test and see if GIMP's apparent 85 default really does/doesn'
On Fri, Mar 23, 2012 at 4:31 PM, Liam R E Quin wrote:
> Maybe it would be less confusing to make the numbers go from 0 to 255 or
> something. Then 255 would be 100% of the allowed value.
I can hear the wailing and gnashing of users now: "I followed the
tutorial exactly and saved the final JPEG at
I suppose the reason I didn't go the preview route is that I'm a bit
annoyed that GIMP doesn't remember that I've changed that setting to 75
every single time I've made a JPG. Now that you suggest it, I could run a
test and see if GIMP's apparent 85 default really does/doesn't make a
significant di
On Fri, 2012-03-23 at 21:52 +0100, Olivier wrote:
> Considering the quality rating in JPEG as a percentage would mean that
> a quality equal to 100 would be perfect, i.e. no loss at all.
Nonsense. A "quality" of 100% means you have chosen 100 out of a
possible 100. "per cent" means "out of 100" in
2012/3/23 Liam R E Quin :
> On Fri, 2012-03-23 at 17:17 +0100, Olivier wrote:
>> The quality rate of JPEG is not a percentage, simply a rate between 0 and
>> 100.
>
> A number in the range 0 to 100 is actually by definition a
> percentage ;-)
That's a weird definition of a percentage!
Considerin
On Fri, 2012-03-23 at 17:17 +0100, Olivier wrote:
> The quality rate of JPEG is not a percentage, simply a rate between 0 and 100.
A number in the range 0 to 100 is actually by definition a
percentage ;-)
GIMP tries to detect the compression that was used for the original
image and uses those set
The quality rate of JPEG is not a percentage, simply a rate between 0 and 100.
To my knowledge, the suggested quality rate is a part of the
photograph. My camera suggests 90, my daughter's camera suggests 93,
and I always decrease it to 85, or export to PNG.
Olivier Lecarme
__
On 03/23/2012 10:39 AM, Keith Purtell wrote:
> I've noticed that every time I save an image in GIMP as JPG the
> quality slider bar defaults to 85. Even though I keep changing it to
> 75.
That's odd. Every version of the GIMP I have ever used defaulted to
the legacy Photoshop value of "75" for
On Fri, 23 Mar 2012 20:09:37 +0530, Keith Purtell
wrote:
I've noticed that every time I save an image in GIMP as JPG the quality
slider bar defaults to 85. Even though I keep changing it to 75. If this
numeric value is a Photoshop equivalent like other GIMP features, then 85
is probably a was
I've noticed that every time I save an image in GIMP as JPG the quality
slider bar defaults to 85. Even though I keep changing it to 75. If this
numeric value is a Photoshop equivalent like other GIMP features, then 85
is probably a wasted effort. The research* I'm aware of* (note emphasis)
says th
16 matches
Mail list logo
