Legacy ImageMagick Discussions Archive

Hello there

When I use ImageMagick with decorate option

The result seems wrong when I compare Photoshop or MS Word result

The problem is that the line width of underline or throughline is too thin than which I expected

Even ImageMagick uses depending on the OTF font information

The line is extremely thin and there seems an issue of line position (y and x as well)

Check the below result for your understanding

Font name -> Noto Sans CJK JP Medium (OTF version)

Photoshop result

MS Word result

ImageMagick result(7.0.8-50 Q16 x86_64)

Below is a command snippet

Code: Select all

convert \
    -size 320x120 xc:white -draw \
    "fill black font-size 64 font '/Users/user/Downloads/NotoSansCJKjp-hinted/test.otf' decorate LineThrough gravity center text 0,0 'test'" linethrough.gif

Hmmm, There seems no one is interested in this issue...

So I tried to fix this issue by my self by changing the source file in MagickCore

And below is the result (this case I used NotoSerifCJK JP)

Underline

LineThrough

There seem two issues in the code

1. skip some condition when PolygonPrimitive uses stroke width
2. A calculation logic for underline_thickness which FreeType gave includes an issue

I will make PR for solving this issue very soon

There seems still an issue in annotating process (line through position is not correct accurately)

I will fix that issue as well, and then you can check the source code from PR in GitHub

We were about to investigate this issue but you saved us the time. Looking forward to your PR.

I just sent a PR at https://github.com/ImageMagick/ImageMagick/pull/1619

Legacy ImageMagick Discussions Archive

text_decoration (underline, line_through) is too thin than the font default from the other render result

text_decoration (underline, line_through) is too thin than the font default from the other render result

Re: text_decoration (underline, line_through) is too thin than the font default from the other render result

Re: text_decoration (underline, line_through) is too thin than the font default from the other render result

Re: text_decoration (underline, line_through) is too thin than the font default from the other render result

Re: text_decoration (underline, line_through) is too thin than the font default from the other render result