Perl Image::Magick 创建阴影的方法(非命令行)
我发现这个 PHP 版本似乎是我需要的结果。
<?php
try
{
/*** a new Imagick object ***/
$im = new Imagick('images/spork.jpg');
/*** set the image format to png ***/
$im->setImageFormat('png');
/*** an object for the drop shadow ***/
$shadow = $im->clone();
/*** an object for the drop shadow ***/
$drop_shadow = $im->clone();
/*** set shadow color to black ***/
$drop_shadow->setImageBackgroundColor( new ImagickPixel( 'black' ) );
/*** Create the shadow ***/
$drop_shadow->shadowImage( 80, 3, 5, 5 );
/*** stick them together ***/
$drop_shadow->compositeImage( $im, Imagick::COMPOSITE_OVER, 0, 0 );
/*** write image to disk ***/
$drop_shadow->writeImage( '/tmp/dropshadow.png' );
echo 'Wrote Image';
}
catch(Exception $e)
{
echo $e->getMessasge();
}
?>
(试图发布图片,不让我。) 示例如下: 带阴影的 spork
现在,我已经取得了我需要在 Perl 中使用它的结果(使用另一张图像):
#!/usr/bin/perl -w
use strict;
my imageurl='http://nonprofit.org/images/someimage.jpg';
my $contact='[email protected]';
system("montage $imageurl -geometry 476x356 -background '#F7F7F7' -quality 90 -fill '#ffffff' -shadow \ -stroke '#000C' -strokewidth 2 -gravity SouthWest -font Candice -pointsize 14 -annotate +2+1 '$contact' \ -stroke none -fill white -gravity SouthWest -font Candice -pointsize 14 -annotate +2+2 '$contact' \ -gravity center $new");
system("montage $new -geometry 480x360 -background '#F7F7F7' -quality 90 -fill '#F7F7F7' $new");
这给了我一个很好的阴影长宽比(编辑)图像,以 480x360 框/画布为中心,与页面 bgcolor f7f7f7 匹配。
现在,我希望不使用系统方法来做到这一点。
所以,我尝试了这个:
#!/usr/bin/perl -w
use Image::Resize;
use Image::Magick;
use strict;
my imageurl='http://nonprofit.org/images/someimage.jpg';
my $contact='[email protected]';
my $ibig = Image::Magick->new;
$ibig->Read("$imageurl");
$ibig->Resize(geometry=>'476x356');
$ibig->Montage(geometry=>'476x356',
background=>'#F7F7F7',
quality=>90,gravity=>'center',
shadow=>80x4+4+4);
#tried shadow=>'true' and '1' and many other variations.
$ibig->Annotate(text=>$contact,
x=>2,y=>1,
font=>'Candice',
pointsize=>14,
stroke=>'#000C',
strokewidth=>2,
gravity=>'SouthWest');
$ibig->Annotate(text=>$contact,
x=>2,y=>2,
font=>'Candice',
pointsize=>14,
fill=>'#ffffff',
stroke=>'none',
gravity=>'SouthWest');
$ibig->Montage(geometry=>'480x360',
background=>'#F7F7F7',
quality=>90,
fill=>'#F7F7F7');
$ibig->Write("$new");
这不起作用。注释可以工作,但是没有阴影,并且图像通常最终为 479x360。
系统方法工作完美,但是,我真的想学习如何使用我的 Image::Magick 示例来做到这一点。
我花了两天时间研究这个并阅读 man.
当我想不通的时候,我就去 stackoverflow,总能找到解决方案!
提前致谢。
(抱歉格式问题。我尝试清理它。)
I found this PHP version that seems to be the result I need.
<?php
try
{
/*** a new Imagick object ***/
$im = new Imagick('images/spork.jpg');
/*** set the image format to png ***/
$im->setImageFormat('png');
/*** an object for the drop shadow ***/
$shadow = $im->clone();
/*** an object for the drop shadow ***/
$drop_shadow = $im->clone();
/*** set shadow color to black ***/
$drop_shadow->setImageBackgroundColor( new ImagickPixel( 'black' ) );
/*** Create the shadow ***/
$drop_shadow->shadowImage( 80, 3, 5, 5 );
/*** stick them together ***/
$drop_shadow->compositeImage( $im, Imagick::COMPOSITE_OVER, 0, 0 );
/*** write image to disk ***/
$drop_shadow->writeImage( '/tmp/dropshadow.png' );
echo 'Wrote Image';
}
catch(Exception $e)
{
echo $e->getMessasge();
}
?>
(Tried to post image, would not let me.)
Example here: spork with drop shadow
Now, I have achieved results I need using this in Perl (with another image):
#!/usr/bin/perl -w
use strict;
my imageurl='http://nonprofit.org/images/someimage.jpg';
my $contact='[email protected]';
system("montage $imageurl -geometry 476x356 -background '#F7F7F7' -quality 90 -fill '#ffffff' -shadow \ -stroke '#000C' -strokewidth 2 -gravity SouthWest -font Candice -pointsize 14 -annotate +2+1 '$contact' \ -stroke none -fill white -gravity SouthWest -font Candice -pointsize 14 -annotate +2+2 '$contact' \ -gravity center $new");
system("montage $new -geometry 480x360 -background '#F7F7F7' -quality 90 -fill '#F7F7F7' $new");
Which gives me a nice drop shadowed aspect ratio(ed) image centered in a 480x360 box/canvas that matches the pages bgcolor f7f7f7.
Now, I desire to do this without using system method.
So, I tried this:
#!/usr/bin/perl -w
use Image::Resize;
use Image::Magick;
use strict;
my imageurl='http://nonprofit.org/images/someimage.jpg';
my $contact='[email protected]';
my $ibig = Image::Magick->new;
$ibig->Read("$imageurl");
$ibig->Resize(geometry=>'476x356');
$ibig->Montage(geometry=>'476x356',
background=>'#F7F7F7',
quality=>90,gravity=>'center',
shadow=>80x4+4+4);
#tried shadow=>'true' and '1' and many other variations.
$ibig->Annotate(text=>$contact,
x=>2,y=>1,
font=>'Candice',
pointsize=>14,
stroke=>'#000C',
strokewidth=>2,
gravity=>'SouthWest');
$ibig->Annotate(text=>$contact,
x=>2,y=>2,
font=>'Candice',
pointsize=>14,
fill=>'#ffffff',
stroke=>'none',
gravity=>'SouthWest');
$ibig->Montage(geometry=>'480x360',
background=>'#F7F7F7',
quality=>90,
fill=>'#F7F7F7');
$ibig->Write("$new");
Which does not work. The annotate works but, no drop shadow and the image usually ends up 479x360.
The system method works flawlessly but, I really want to learn how to do this with my Image::Magick example.
I spent two days researching this and reading man.
When I can't figure it out, I come to stackoverflow and ALWAYS get a solution!
Thanks in advance.
(Sorry about formatting issues.. I tried to clean it up.)
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Montage()
返回一个新图像。尝试:
不幸的是,文档没有明确提到这一点,但有本页上的一些示例说明了这一点。
Montage()
returns a new image.Try:
The documentation doesn't explicitly mention this, unfortunately, but there are some examples on this page which show this.