Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
Image::Info::BMP(3)   User Contributed Perl Documentation  Image::Info::BMP(3)

NAME
       Image::Info::BMP	- Windows Device Independent Bitmap support for
       Image::Info

SYNOPSIS
	use Image::Info	qw(image_info dim);

	my $info = image_info("image.bmp");
	if (my $error =	$info->{error})	{
	    die	"Can't parse image info: $error\n";
	}
	my $color = $info->{color_type};

	my($w, $h) = dim($info);

DESCRIPTION
       This module supplies the	standard key names except for Gamma,
       Interlace, LastModificationTime,	as well	as:

       BMP_ColorsImportant
	   Specifies the number	of color indexes that are required for
	   displaying the bitmap. If this value	is zero, all colors are
	   required.

       BMP_Origin
	   If true the bitmap is a bottom-up DIB and its origin	is the lower-
	   left	corner.	 Otherwise, the	bitmap is a top-down DIB and its
	   origin is the upper-left corner.

       ColorPalette
	   Reference to	an array of all	colors used.  This key is only present
	   if "image_info" is invoked as "image_info($file, ColorPalette=>1)".

       ColorTableSize
	   The number of colors	the image uses.	 If 0 then this	is a true
	   color image.	 The number of colors available	is 2 ^ BitsPerSample.

METHODS
   process_file()
	       $info->process_file($source, $options);

       Processes one file and sets the found info fields in the	$info object.

SEE ALSO
       Image::Info

NOTES
       For more	information about BMP see <http://msdn.microsoft.com>.

       Random notes:

	 warn if height	is negative and	compress is not	RGB or BITFILEDS (0 or 3)
	 ICO and CUR support?
	 ### v5
	 If bit	depth is 0, it relies upon underlying JPG/PNG :-(
	 Extra Information
	   DWORD	bV5RedMask;
	   DWORD	bV5GreenMask;
	   DWORD	bV5BlueMask;
	   DWORD	bV5AlphaMask;
	   DWORD	bV5CSType;
	   CIEXYZTRIPLE	bV5EndPoints; #3*CIEXYZ	#CIEXYZ	= 3*FXPT2DOT30#FXPT2DOT30 = long
	   DWORD	bV5GammaRed;
	   DWORD	bV5GammaGreen;
	   DWORD	bV5GammaBlue;
	   DWORD	bV5Intent;
	   DWORD	bV5ProfileData;
	   DWORD	bV5ProfileSize;

DIAGNOSTICS
       Size mismatch
	   The image may be correct, but the filesize does not match the
	   internally stored value.

BUGS
       The current implementation only functions on little-endian
       architectures.  Consequently erroneous data concerning compression
       (including file_ext and file_mime_type) may be reported.

AUTHOR
       Jerrad Pierce <belg4mit@mit.edu>/<webmaster@pthbb.org>

       This library is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

perl v5.32.0			  2015-04-03		   Image::Info::BMP(3)

NAME | SYNOPSIS | DESCRIPTION | METHODS | SEE ALSO | NOTES | DIAGNOSTICS | BUGS | AUTHOR

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=Image::Info::BMP&sektion=3&manpath=FreeBSD+12.1-RELEASE+and+Ports>

home | help