Image::Info::BMP - phpMan

Image::Info::BMP(3pm)          User Contributed Perl Documentation          Image::Info::BMP(3pm)

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 AT mit.edu>/<webmaster AT pthbb.org>

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

perl v5.30.0                                2019-11-24                      Image::Info::BMP(3pm)

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