The FreeType Project - Bugs: bug #42406, OTF and TTF versions of the same...
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bug #42406: OTF and TTF versions of the same font render small type differently
Submitter: | Jerome <jeromeka> | ||
Submitted: | Fri 23 May 2014 01:10:22 AM UTC | ||
Severity: | 3 - Normal | Item Group: | None |
Status: | Invalid | Privacy: | Public |
Assigned to: | wl | Open/Closed: | Closed |
Planned Release: | None |
Jump to the original submission
Tue 25 Feb 2020 09:26:35 AM UTC, comment #6: |
Werner LEMBERG <wl> |
Tue 10 Jun 2014 06:18:40 PM UTC, comment #5:
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Jerome <jeromeka> |
Wed 28 May 2014 06:05:32 AM UTC, comment #4: That's helpful.
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Jerome <jeromeka> |
Tue 27 May 2014 11:38:25 PM UTC, comment #3: I suspect your system is not using gamma to blend the glyph density maps into the page background. This is the equivalent of using gamma 1.0. It has the general effect of making black text on a white background look darker, but it has numerous negative side-effects. The CFF rasterizer implements a stem darkening algorithm that assumes a blending gamma close to 1.8. That will give small text more contrast but without the negative effects. However, if you apply stem darkening and also blend with gamma 1.0, the CFF text will appear too dark. This is not intended!
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Dave Arnold <darnold> |
Sun 25 May 2014 11:12:16 PM UTC, comment #2: Thank you.
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Jerome <jeromeka> |
Sat 24 May 2014 12:24:51 PM UTC, comment #1: This is a known issue, and we are working on it. Maybe Dave Arnold can give more comments.
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Werner LEMBERG <wl> |
Fri 23 May 2014 01:10:22 AM UTC, original submission:
Originally at https://bugs.kde.org/show_bug.cgi?id=335058 And then at
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Jerome <jeromeka> |
Depends on the following items: None found
Items that depend on this one: None found
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Follow 9 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2020-02-25 | wl | Status | Confirmed | Invalid | |
Open/Closed | Open | Closed | |||
2014-05-24 | wl | Status | None | Confirmed | |
Assigned to | None | wl | |||
Carbon-Copy | - | Added darnold | |||
2014-05-23 | cloos | Carbon-Copy | - | Added cloos | |
2014-05-23 | jeromeka | Attached File | - | Added giveusahint-b.png, #31417 | |
Attached File | - | Added ftview_comparison.png, #31418 | |||
Attached File | - | Added giveusahint.png, #31419 |
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Corresponding source code
I'm closing this bug as invalid; the suggestion to apply stem darkening to the TrueType engine is issue #42446.