https://bugs.kde.org/show_bug.cgi?id=408222
2wxsy5823...@opayq.com changed:
What|Removed |Added
See Also||https://bugs.kde.org/show_b
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #23 from Tobias Deiminger ---
(In reply to Tobias Deiminger from comment #22)
> $ compare -metric SSIM test-1-original.jpg test-1-cairo-200dpi.png null: 2>&1
> 0.826331
There was a mistake in the example. The compare tool needs two
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #22 from Tobias Deiminger ---
Found a quite on-topic paper [0], where it's suggested to compute local indexes
for luminance comparison, contrast comparison and structural comparison to
assess the quality of downsampling algorithm.
If I
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #21 from David Hurka ---
(In reply to Tobias Deiminger from comment #20)
> But that impression is subjective, can we try to
> quantize a bit what "better" means? E.g., we could measure "densitiy of
> black" in a histogram, right? Any other
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #20 from Tobias Deiminger ---
(In reply to yousifjkadom from comment #14)
> Created attachment 120583 [details]
> test-1b-okular
Can you tell us the resolution of your display, and the Okular zoom level at
which you observe bad behavior?
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #19 from Albert Astals Cid ---
By the way, i guess this is due to cultural barriers/translation issues, but
your tone is way out of line.
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Albert Astals Cid changed:
What|Removed |Added
Status|NEEDSINFO |REPORTED
Resolution|WAITINGFORINFO
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #17 from yousifjka...@yahoo.com ---
Created attachment 120586
--> https://bugs.kde.org/attachment.cgi?id=120586=edit
test-2-xreader
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--- Comment #16 from yousifjka...@yahoo.com ---
Created attachment 120585
--> https://bugs.kde.org/attachment.cgi?id=120585=edit
test-2-okular
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--- Comment #15 from yousifjka...@yahoo.com ---
Created attachment 120584
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test-1b-xreader
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--- Comment #14 from yousifjka...@yahoo.com ---
Created attachment 120583
--> https://bugs.kde.org/attachment.cgi?id=120583=edit
test-1b-okular
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--- Comment #13 from yousifjka...@yahoo.com ---
Created attachment 120582
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test-1a-xreader
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--- Comment #12 from yousifjka...@yahoo.com ---
Created attachment 120581
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test-1a-okular
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--- Comment #11 from yousifjka...@yahoo.com ---
Take screenshots that you asked me for.
I have to add that NOT ONLY SCANNED PDF affected by this ! Even formatted PDF
(text based PDF) also affected when black tone is lower in Okular & characters
less
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #10 from David Hurka ---
Created attachment 120580
--> https://bugs.kde.org/attachment.cgi?id=120580=edit
Pixels
Using Albert’s screenshot, one could say that Evince and Okular draw slightly
different. Indeed, where the arrow points,
https://bugs.kde.org/show_bug.cgi?id=408222
Tobias Deiminger changed:
What|Removed |Added
CC||haxti...@posteo.de
--- Comment #9 from
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #8 from yousifjka...@yahoo.com ---
Created attachment 120519
--> https://bugs.kde.org/attachment.cgi?id=120519=edit
test-2
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--- Comment #7 from yousifjka...@yahoo.com ---
Created attachment 120518
--> https://bugs.kde.org/attachment.cgi?id=120518=edit
test-1
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--- Comment #6 from yousifjka...@yahoo.com ---
Hi.Sorry for delay in response, it was at night in my country & I went to sleep
just after posting this bug.
Dear, I attach 2 PDF files, each composed from single page. In each page (each
PDF file) there
https://bugs.kde.org/show_bug.cgi?id=408222
Albert Astals Cid changed:
What|Removed |Added
Resolution|--- |WAITINGFORINFO
Status|REPORTED
https://bugs.kde.org/show_bug.cgi?id=408222
Albert Astals Cid changed:
What|Removed |Added
CC||aa...@kde.org
--- Comment #4 from Albert
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #3 from David Hurka ---
Created attachment 120507
--> https://bugs.kde.org/attachment.cgi?id=120507=edit
Page 188 in Okular
A friend just told me that this is readable.
However, how does it look different in Evince? It uses the same
https://bugs.kde.org/show_bug.cgi?id=408222
--- Comment #2 from yousifjka...@yahoo.com ---
Please take care for this issue because it is very important for those users
that live in 3rd world countries where most of PDF books are scanned not
formatted
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--- Comment #1 from yousifjka...@yahoo.com ---
Created attachment 120506
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scanned-pdf
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yousifjka...@yahoo.com changed:
What|Removed |Added
Summary|Okular is bad in|Okular is bad in displaying
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