Bug 140473 - SVG to PNG export is kind of fuzzy/blurred without with compression at 1, 999 DPI, 30cm width (and does export at 309)
Summary: SVG to PNG export is kind of fuzzy/blurred without with compression at 1, 999...
Status: UNCONFIRMED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: graphics stack (show other bugs)
Version:
(earliest affected)
7.2.0.0.alpha0+
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-17 14:26 UTC by Telesto
Modified: 2024-02-19 00:25 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


Attachments
test results in 7.1, 7.2 and 7.5 (312.37 KB, application/vnd.oasis.opendocument.text)
2023-07-21 15:52 UTC, Stéphane Guillou (stragu)
Details
PNG export in Windows (185.53 KB, image/png)
2024-02-18 12:43 UTC, Telesto
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Telesto 2021-02-17 14:26:25 UTC
Description:
SVG to PNG export is kind of fuzzy/blurred without with compression at 1, 600 DPI, 30cm width

Steps to Reproduce:
1. Open attachment 169804 [details] and select the image
2. File -> Export -> PNG
3. Pick filename & select "selection0  & click save
4. Take a resolution of 600 DPI (or more). Set compression to 1 and height to 30
5. Press OK
6. Open the export file. Zoom in 200 or 300% and compare with SVG

The text has compression artifacts. All the colored perf graph boxes have blurry borders (not as crisp and crystal clear as the SVG)

And somehow the DPI does seem to matter.. Typing 999 DPI and 30 cm.. and still getting 309 DPI 

Actual Results:
Bad quality and export doesn't match settings

Expected Results:
Compliance to the input given


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.2.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 28555fc345ac2ccdda0e4e0f3c812c646befe68b
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: default; VCL: win
Locale: nl-NL (nl_NL); UI: en-US
Calc: CL
Comment 1 Stéphane Guillou (stragu) 2023-07-21 15:48:04 UTC
I tested exporting the selection as PNG with 30 cm width and 600 DPI.

In 7.1.0.3, LO outputs a 15-mb file that is very blurry.

In 7.2.7.2 and 7.4.7.2, same result: I get a 3-mb file with good results. Can you check if it is also resolved for you, Telesto?

Version: 7.4.7.2 / LibreOffice Community
Build ID: 723314e595e8007d3cf785c16538505a1c878ca5
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

In 7.5.5.2 and 24.2, I get no text whatsoever on selection export (and misplaced text in full page export). But that's a different issue, maybe related to bug 153672. 

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 77fca616e0bd79e0b405fd0b3543cf8e94e15df3
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded
Comment 2 Stéphane Guillou (stragu) 2023-07-21 15:52:04 UTC
Created attachment 188513 [details]
test results in 7.1, 7.2 and 7.5
Comment 3 QA Administrators 2024-01-18 03:13:44 UTC Comment hidden (obsolete)
Comment 4 QA Administrators 2024-02-18 03:12:48 UTC Comment hidden (obsolete)
Comment 5 Telesto 2024-02-18 12:43:28 UTC
Created attachment 192619 [details]
PNG export in Windows
Comment 6 Telesto 2024-02-18 13:21:12 UTC
(In reply to Stéphane Guillou (stragu) from comment #1)
> In 7.5.5.2 and 24.2, I get no text whatsoever on selection export (and
> misplaced text in full page export). But that's a different issue, maybe
> related to bug 153672. 

Still a thing: bug 159759