Image::Info::BMP(3) User Contributed Perl Documentation Image::Info::BMP(3)NAME
Image::Info:BMP - Windows Device Indepdent 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 modules 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 color available is 2 ^ BitsPerSample.
METHODSprocess_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, the filesize does not match the
internally stored value.
BUGS
The current implementation only function 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 v5.14.2 2006-03-03 Image::Info::BMP(3)
