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Arc text leaves streaks
Posted: 2013-03-12T09:08:54-07:00
by Marvin944
Hi, when I arc distort text, on certain characters/fonts (highest/lowest) it draws streaks from the center in the font's colour, as if those top/bottom pixels get dragged along. How can I avoid this?
Re: Arc text leaves streaks
Posted: 2013-03-12T09:52:28-07:00
by Marvin944
Fixed this myself by adding -bordercolor none -border 1x1 to the script.
Re: Arc text leaves streaks
Posted: 2013-03-12T10:22:52-07:00
by fmw42
try setting -virtual-pixel transparent
Re: Arc text leaves streaks
Posted: 2013-03-21T19:14:13-07:00
by anthony
Yes the default virtual pixel setting is "edge' when means replicate the images edges out to infinity for any pixel lookup that actually 'missed' the real image. that is lookups of pixels surrounding the real image.
See Virtual Pixels..
http://www.imagemagick.org/Usage/misc/#virtual-pixel
Edge is a good default, but when a object just touches the image edge, it produces the streaks you mention. This is actually used to good effect in some image processing. for example...
Arc Distortion Examples
http://www.imagemagick.org/Usage/distorts/#arc_examples