Search found 3 matches

by ramaglabs
2015-07-27T07:47:37-07:00
Forum: Users
Topic: How to draw text antialiased on alpha channel only
Replies: 7
Views: 6950

Re: How to draw text antialiased on alpha channel only

Looks like the old sRGB versus linear problem is contributing to this. With 6.9.1-9 on Windows convert -background transparent -resize 1024x768 -fill '#000000B8' -font Arial -pointsize 50 label:'Test Stamp' -type 'TrueColorAlpha' -alpha off -fill '#AAAAAA' -opaque black -alpha on test.png seems to ...
by ramaglabs
2015-07-21T08:02:12-07:00
Forum: Users
Topic: How to draw text antialiased on alpha channel only
Replies: 7
Views: 6950

Re: How to draw text antialiased on alpha channel only

Thanks, but not quite. That produces text that's the correct colour (#AAAAAA) but has a hard outline and is not semi transparent. What I am looking for is the pixels to be '#AAAAAAB8' except around the glyph edges where they should blend with the transparent background, so have varying alpha values ...
by ramaglabs
2015-07-21T06:16:56-07:00
Forum: Users
Topic: How to draw text antialiased on alpha channel only
Replies: 7
Views: 6950

How to draw text antialiased on alpha channel only

We are upgrading from an old version of ImageMagick and finding that a command we have previously used now produces different results. In ImageMagick 6.7.3-9 the following produces greyscale text on a transparent background, where the text is a solid colour (#AAAAAA) and is antialiased against the ...