Legacy ImageMagick Discussions Archive

Thanks for the reply. I built it with "./configure --disable-openmp" but I had no luck. Width/height are: 720x1280, 300x400, 700x600 :) I tested many images. There's no any problem with those images :) BUT: It looks like the problem with my system only. Looks like CUDA driver in MacOS is broken. So ...

I'm using: Mac OS X 10.12.5 NVidia GTX 980 CUDA-Z sees my GPU without any problem. $ magick --version Version: ImageMagick 7.0.6-7 Q16 x86_64 2017-08-12 http://www.imagemagick.org Copyright: © 1999-2017 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher ...

Well I can use another ttf file for setting italic style of setting new font weight but what to do with the TextInterlineSpacing? It doesn't work in both cases...

Magick::Image image( Magick::Geometry( 300, 300 ), Magick::Color( "white" ) ); std::vector < Magick::Drawable > textArr; textArr.push_back( Magick::DrawablePointSize( 70 ) ); textArr.push_back( Magick::DrawableTextInterlineSpacing( 0.1f ) ); textArr.push_back( Magick::DrawableGravity( MagickCore ...

snibgo wrote: ↑2017-04-28T20:46:23-07:00 For drawing text, as opposed to other methods, I suppose you should use methods on http://www.imagemagick.org/Magick++/Drawable.html such as DrawableFont.

Well maybe. But for what purposes developers created those methods such as fontStyle(), fontWeight(), textInterlineSpacing()?

Here is my code: Magick::Image image( Magick::Geometry( 700, 700 ), Magick::Color( "white" ) ); image.font( "verdana" ); image.fontPointsize( 70 ); image.fontWeight( 900 ); image.fontStyle( Magick::ItalicStyle ); image.textInterlineSpacing( 0.1f ); image.textGravity( MagickCore::CenterGravity ...

If I use just:
I see the generated thumbnail (yellow background) for that file in my OS.

I've just updated my IM to 7.0.5-4 (previously I used 7.0.5-2) and now I see the code: Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); testImg.fx( "i/w" ); testImg.write( "images/test-img.png" ); generates a vertical gradient from black to white (from left to right ...

Oh finally I've got it. You mean simply masks technique. Now I understand what did you mean. Here is the way for doing this: Magick::Image gradImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); gradImg.read( "gradient:red-blue" ); Magick::Image maskImg( Magick::Geometry( 500, 500 ...

For translating between command-line and C (or C++), a very useful source is MagickCore\option.c. This file translates command-line options to the internals. Search that file for "CopyOpacity". Thanks, it's very useful file! :) Didn't know about it. Now I know that ColorizeCompositeOp is the ...

1. What do the "-alpha off" command do? Is it just remove the alpha channel from an image? 2. I try to convert it to C++ so I did: Magick::Image gradImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); gradImg.read( "gradient:red-blue" ); Magick::Image testImg( Magick::Geometry( 500, 500 ...

Wow that works really cool but how to convert it to Magick++ format? :) The first problem is with the colorize function. I see two definitions of colorize function: // Colorize image with pen color, using specified percent alpha. void colorize(const unsigned int alpha_,const Color &penColor ...

Not directly. It can be made transparent, and the image then composited over a gradient image. Such an interesting technique. You mean I can draw a primitive with a transparent fill and put that primitive over the gradient image? Do I need to have a white background outside the primitive? Then how ...

I suggest you upload the broken PNG file so someone can take a look. Sure. This my broken png file: https://ufile.io/vv7ya Code: Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); testImg.fx( "i/w" ); testImg.write( "images/test-img.png" ); I don't know what you expect ...