png in light table after export from original jpg is not the same size

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png in light table after export from original jpg is not the same size

Gary Wilson Jr.
The original jpg photo downloaded from camera:
dimensions: 5184x3456
size: 11.0 MiB

If I load this picture into the image editor, then export to png,
compression 9, I get:
dimensions: 5184x3456
size: 30.7 MiB

For comparison, if I open the original jpg in gimp, then export to
png, compression 9, I get:
dimensions: 5184x3456
size: 30.3 MiB

Now, the issue I'm seeing is that if I open the original jpg and the
png created with digikam into digikam's light table, both scaled to
fit, the jpg is at 31% scaled and the png is at 63% scaled; however,
if I add the png created with gimp into the light table it scales at
the same 17% as the original image.

Any ideas as to why the digikam png file is acting like it shrank?  If
I open all three files in gimp they all scale to the same size when at
the same scale percentage.

Thanks,
Gary
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Re: png in light table after export from original jpg is not the same size

Gilles Caulier-4
You display the IPTC preview jpeg embeded in PNG. Go to Setup  LT and
turn on Load Full Image Size option...

Gilles Caulier

2011/3/29 Gary Wilson Jr. <[hidden email]>:

> The original jpg photo downloaded from camera:
> dimensions: 5184x3456
> size: 11.0 MiB
>
> If I load this picture into the image editor, then export to png,
> compression 9, I get:
> dimensions: 5184x3456
> size: 30.7 MiB
>
> For comparison, if I open the original jpg in gimp, then export to
> png, compression 9, I get:
> dimensions: 5184x3456
> size: 30.3 MiB
>
> Now, the issue I'm seeing is that if I open the original jpg and the
> png created with digikam into digikam's light table, both scaled to
> fit, the jpg is at 31% scaled and the png is at 63% scaled; however,
> if I add the png created with gimp into the light table it scales at
> the same 17% as the original image.
>
> Any ideas as to why the digikam png file is acting like it shrank?  If
> I open all three files in gimp they all scale to the same size when at
> the same scale percentage.
>
> Thanks,
> Gary
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
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Re: png in light table after export from original jpg is not the same size

Gary Wilson Jr.
On Tue, Mar 29, 2011 at 12:14 AM, Gilles Caulier
<[hidden email]> wrote:
> You display the IPTC preview jpeg embeded in PNG. Go to Setup  LT and
> turn on Load Full Image Size option...

So, once I enable the "load full-sized image" light table option, the
photo still seems to have a yellowish tint to it.  This only seems to
be visible in the light table and not in the main window or if I open
the image in the image editor.

Screenshot is available on dropbox:
http://www.dropbox.com/gallery/24684296/1/digikam%20screenshots?h=36c50e

Gary
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Re: png in light table after export from original jpg is not the same size

Gilles Caulier-4
Do you use color managent with eimage editor ?

Can you share your original RAW file and your generated PNG file to
test in local ?

Gilles Caulier

2011/3/30 Gary Wilson Jr. <[hidden email]>:

> On Tue, Mar 29, 2011 at 12:14 AM, Gilles Caulier
> <[hidden email]> wrote:
>> You display the IPTC preview jpeg embeded in PNG. Go to Setup  LT and
>> turn on Load Full Image Size option...
>
> So, once I enable the "load full-sized image" light table option, the
> photo still seems to have a yellowish tint to it.  This only seems to
> be visible in the light table and not in the main window or if I open
> the image in the image editor.
>
> Screenshot is available on dropbox:
> http://www.dropbox.com/gallery/24684296/1/digikam%20screenshots?h=36c50e
>
> Gary
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
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