Legacy ImageMagick Discussions Archive

Is it possible that there is no repage available in PerlMagick's Crop()?

I do not see a repage operator in the PerlMagick doc, so I tried forcing the issue using the geometry string (!) Ã¡ la the command line.

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use Image::Magick;

$image1 = new Image::Magick;

$image1->Read('logo:');
$image2 = $image1->Clone();

$image1->Crop("300x200+50+75");
$image1->Write(filename=>'logocrop1.png');

$image2->Crop("300x200+50+75!");
$image2->Write(filename=>'logocrop2.png');

Executing the above gives two files. But identify shows the trouble - the second file is not +repaged:

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> identify logocrop1.png

logocrop1.png PNG 300x200 640x480+50+75 DirectClass 16-bit  31.3926kb

> identify logocrop2.png

logocrop2.png PNG 300x200 640x480+50+75 DirectClass 16-bit 31.3926kb

The command line versions, of course, are fine:

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> convert logo: -crop 300x200+50+75 logocrop1.png

> convert logo: -crop 300x200+50+75! logocrop2.png

>identify logocrop1.png

logocrop1.png PNG 300x200 640x480+50+75 DirectClass 16-bit 31.3926kb

>identify logocrop2.png

logocrop2.png PNG 300x200 300x200+0+0 DirectClass 16-bit 31.373kb

So how do I (or can I) force a repage in PerlMagick?

Rick

$image->Set( page=>'0x0+0+0' );

is equivalent to the +repage command-line option.

magick wrote:
$image->Set( page=>'0x0+0+0' );
is equivalent to the +repage command-line option.

Fabulous, Mr. Wizard!

I appreciate your speedy replies but worry that you never sleep.

Rick

magick wrote:
$image->Set( page=>'0x0+0+0' );
is equivalent to the +repage command-line option.

Now I'm just curious - shouldn't / couldn't the commandline-style geometry work with Crop(), if for no other reason than to make code a bit more compact (and maybe faster)? Or perhaps another option to Crop() to force a repage? I'll probably be calling Set( page=>'0x0+0+0' ) after every crop, which is fine but seems excessive. Of course I can write a sub, but still...

Rick

Operations are typically more atomic with an API than on the command-line. The burden is on the programmer. In the case of PerlMagick, since its object oriented, you could always write a class to support crop with repage.

Legacy ImageMagick Discussions Archive

No repage in PerlMagick Crop()?

No repage in PerlMagick Crop()?