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

NAME  SYNOPSIS  DESCRIPTION  METHODS  process_file()  SEE ALSO  NOTES  DIAGNOSTICS  BUGS  AUTHOR 

---

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 ˆ 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 <[email protected]>/<[email protected]>

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

---