“MagickWand”的版本间的差异
来自Blueidea
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*[http://www.magickwand.org/ MagickWand For PHP Manual] | *[http://www.magickwand.org/ MagickWand For PHP Manual] | ||
*[[MagickWand/Manual]] | *[[MagickWand/Manual]] | ||
+ | |||
+ | |||
+ | == 代码示例 == | ||
+ | |||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower.jpg -quality 80% flower_quality.jpg | ||
+ | $resource = NewMagickWand(); | ||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | MagickSetFormat($resource, 'JPG'); | ||
+ | MagickSetImageCompression($resource, MW_JPEGCompression); | ||
+ | MagickSetImageCompressionQuality($resource, 80.0); | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | ?> | ||
+ | </source> | ||
+ | |||
+ | '''在图片上写文字:''' | ||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower.jpg -font courier -fill white -pointsize 20 -annotate +50+50 Flower flower_annotate1.jpg | ||
+ | |||
+ | $resource = NewMagickWand(); | ||
+ | $dwand = NewDrawingWand(); | ||
+ | $pwand = NewPixelWand(); | ||
+ | |||
+ | PixelSetColor($pwand, "white"); | ||
+ | DrawSetFont($dwand, "/usr/share/fonts/default/TrueType/cour.ttf");//指定字体 | ||
+ | DrawSetFontSize($dwand, 20); | ||
+ | DrawSetFillColor($dwand, $pwand); | ||
+ | |||
+ | DrawSetGravity($dwand, MW_SouthGravity); | ||
+ | |||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | |||
+ | if( MagickAnnotateImage( $resource, $dwand, 0, 0, 0, "Flower" ) ){ | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | }else{ | ||
+ | echo MagickGetExceptionString($resource); | ||
+ | } | ||
+ | |||
+ | ?> | ||
+ | </source> | ||
+ | |||
+ | '''裁切:''' | ||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower.jpg -crop 128×128+50+50 flower_crop.jpg | ||
+ | $resource = NewMagickWand(); | ||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | if( MagickCropImage( $resource, 128, 128, 50, 50 ) ){ | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | }else{ | ||
+ | echo MagickGetExceptionString($resource); | ||
+ | } | ||
+ | ?> | ||
+ | </source> | ||
+ | |||
+ | '''旋转图片:''' | ||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower.jpg -rotate 45 flower_rotate45.jpg | ||
+ | $resource = NewMagickWand(); | ||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | MagickRotateImage( $resource, null, 45 ); | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | ?> | ||
+ | </source> | ||
+ | |||
+ | '''调整大小:''' | ||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower_original.jpg -resize 640×480 flower.jpg | ||
+ | $resource = NewMagickWand(); | ||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | MagickResizeImage( $resource, 100, 100, MW_QuadraticFilter, 1.0 ); | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | ?> | ||
+ | </source> | ||
+ | |||
+ | '''锐化:''' | ||
+ | <source lang="PHP"> | ||
+ | <?php | ||
+ | // convert flower.jpg -unsharp 1.5×1.0+1.5+0.02 flower_unsharp.jpg | ||
+ | $resource = NewMagickWand(); | ||
+ | MagickReadImage( $resource, 'small_flower.jpg' ); | ||
+ | MagickUnsharpMaskImage( $resource, 1.5, 1.0, 1.5, 0.02 ); | ||
+ | header( 'Content-Type: image/gif' ); | ||
+ | MagickEchoImageBlob( $resource ); | ||
+ | ?> | ||
+ | </source> | ||
[[Category:ImageMagick]][[Category:PHP Extensions]] | [[Category:ImageMagick]][[Category:PHP Extensions]] |
2008-10-21T05:43:40的版本
MagickWand 是PHP的一个扩展程序,通过它建立起与ImageMagick的交互,进行图片的处理。它是默认的GD图象函数库的绝佳替代方案。从安全性和易用性来说,在PHP中使用MagickWand比使用命令行ImageMagick要安全快捷的多。另外 imagick也可用于PHP中作为ImageMagick的替代方案。
MagickWand 有两种形式,
- 只是建立与ImageMagick的交互,这种情况必须先安装ImageMagick,优势是扩展程序文件小(一般几百K),可以快速升级ImageMagick版本。
- 扩展程序本身包含了ImageMagick,优势是不需要额外安装ImageMagick,但扩展程序文件比较大(一般4M以上)。
MagickWand 默认并没有在PHP的安装包里,需要去PHP网站上下载,并在PHP.INI中打开此扩展。
相关链接:
代码示例
<?php // convert flower.jpg -quality 80% flower_quality.jpg $resource = NewMagickWand(); MagickReadImage( $resource, 'small_flower.jpg' ); MagickSetFormat($resource, 'JPG'); MagickSetImageCompression($resource, MW_JPEGCompression); MagickSetImageCompressionQuality($resource, 80.0); header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); ?>
在图片上写文字:
<?php // convert flower.jpg -font courier -fill white -pointsize 20 -annotate +50+50 Flower flower_annotate1.jpg $resource = NewMagickWand(); $dwand = NewDrawingWand(); $pwand = NewPixelWand(); PixelSetColor($pwand, "white"); DrawSetFont($dwand, "/usr/share/fonts/default/TrueType/cour.ttf");//指定字体 DrawSetFontSize($dwand, 20); DrawSetFillColor($dwand, $pwand); DrawSetGravity($dwand, MW_SouthGravity); MagickReadImage( $resource, 'small_flower.jpg' ); if( MagickAnnotateImage( $resource, $dwand, 0, 0, 0, "Flower" ) ){ header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); }else{ echo MagickGetExceptionString($resource); } ?>
裁切:
<?php // convert flower.jpg -crop 128×128+50+50 flower_crop.jpg $resource = NewMagickWand(); MagickReadImage( $resource, 'small_flower.jpg' ); if( MagickCropImage( $resource, 128, 128, 50, 50 ) ){ header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); }else{ echo MagickGetExceptionString($resource); } ?>
旋转图片:
<?php // convert flower.jpg -rotate 45 flower_rotate45.jpg $resource = NewMagickWand(); MagickReadImage( $resource, 'small_flower.jpg' ); MagickRotateImage( $resource, null, 45 ); header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); ?>
调整大小:
<?php // convert flower_original.jpg -resize 640×480 flower.jpg $resource = NewMagickWand(); MagickReadImage( $resource, 'small_flower.jpg' ); MagickResizeImage( $resource, 100, 100, MW_QuadraticFilter, 1.0 ); header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); ?>
锐化:
<?php // convert flower.jpg -unsharp 1.5×1.0+1.5+0.02 flower_unsharp.jpg $resource = NewMagickWand(); MagickReadImage( $resource, 'small_flower.jpg' ); MagickUnsharpMaskImage( $resource, 1.5, 1.0, 1.5, 0.02 ); header( 'Content-Type: image/gif' ); MagickEchoImageBlob( $resource ); ?>