how to implement colortone with magick++ (code)

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qztt
Posts: 1
Joined: 2012-04-25T02:35:57-07:00
Authentication code: 13

how to implement colortone with magick++ (code)

Post by qztt » 2012-04-25T20:40:11-07:00

hi ~
i want implement colortone method .
and test command with command line tool . is ok!
but my code is faild. help me plz !!

convert source.jpg ( -clone 0 -fill "#330000" -colorize 100% )
( -clone 0 -colorspace gray -negate ) -compose blend -define compose:args=100,0
-composite dest.jpg


my code

Code: Select all


void ImageFilterHelper::colortone( Magick::Image * image_obj , const Magick::Color & color , int level, int type )
{
    if( !image_obj )
        return ;

    MagickCore::ExceptionInfo exceptinfo;
    MagickCore::Image * clone_1 = MagickCore::CloneImage( image_obj->image() , 0 , 0 , MagickCore::MagickTrue ,  &exceptinfo );
    MagickCore::Image * clone_2 = MagickCore::CloneImage( image_obj->image() , 0 , 0 , MagickCore::MagickTrue ,  &exceptinfo );

    Magick::Image  image_bk( clone_1 );
    Magick::Image  image_bk2( clone_2 );

    image_bk.fillColor( color );
    image_bk.colorize( 100 ,color );

    image_bk2.quantizeColorSpace( GRAYColorspace );
    image_bk2.quantize( );

    /*
    MagickCore::Image * image_core = image_bk2.image();
    TransformImageColorspace( image_core , MagickCore::GRAYColorspace);
    */

    if( type == 0 )
    {
        image_bk2.negate();
    }

    char define_args[256];
    _snprintf( define_args , sizeof(define_args) , "%d,%d" ,  level , 100 - level ); 

    image_obj->compose( BlendCompositeOp );
    image_bk.compose( BlendCompositeOp );
    image_bk2.compose( BlendCompositeOp );


    image_obj->defineValue("compose" , "args" , define_args );
    image_bk.defineValue("compose" , "args" , define_args );
    image_bk2.defineValue("compose" , "args" , define_args );

    image_obj->write("debug_result.jpg");
}


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