Programming Web Graphics with Perl and GNU Softwar

Name

Crop( ) — crop an image

Synopsis

$image->Crop(geometry=>geometry,
                width=>integer,
                height=>integer,
                x=>integer, 
                y=>integer)

Crop( ) will extract a width by height portion of the image starting at the offset x,y, as shown in Figure 5.3. The geometry parameter is just shorthand for width and height. To crop a 100 × 100 region starting at 20, 20, useCrop('100x100+20+20'). Invoking Crop( ) with the parameter 0x0 will crop off excess “border color” from your image, where the border color is intelligently inferred by PerlMagick. Figure 5.4 and Figure 5.3 compare Crop( ) with Chop( ).

Figure 5-4. $image->Crop(’30x30+90+25')