require Exporter;
require DynaLoader;
- $VERSION = '0.41';
+ $VERSION = '0.45';
@ISA = qw(Exporter DynaLoader);
bootstrap Imager $VERSION;
}
callsub => sub { my %hsh=@_; i_conv($hsh{image},$hsh{coef}); }
};
- $filters{gradgen} ={
- callseq => ['image', 'xo', 'yo', 'colors', 'dist'],
- defaults => { },
- callsub => sub { my %hsh=@_; i_gradgen($hsh{image}, $hsh{xo}, $hsh{yo}, $hsh{colors}, $hsh{dist}); }
- };
+ $filters{gradgen} =
+ {
+ callseq => ['image', 'xo', 'yo', 'colors', 'dist'],
+ defaults => { dist => 0 },
+ callsub =>
+ sub {
+ my %hsh=@_;
+ my @colors = @{$hsh{colors}};
+ $_ = _color($_)
+ for @colors;
+ i_gradgen($hsh{image}, $hsh{xo}, $hsh{yo}, \@colors, $hsh{dist});
+ }
+ };
$filters{nearest_color} ={
callseq => ['image', 'xo', 'yo', 'colors', 'dist'],
callsub =>
sub {
my %hsh = @_;
+
+ # make sure the segments are specified with colors
+ my @segments;
+ for my $segment (@{$hsh{segments}}) {
+ my @new_segment = @$segment;
+
+ $_ = _color($_) or die $Imager::ERRSTR."\n" for @new_segment[3,4];
+ push @segments, \@new_segment;
+ }
+
i_fountain($hsh{image}, $hsh{xa}, $hsh{ya}, $hsh{xb}, $hsh{yb},
$hsh{ftype}, $hsh{repeat}, $hsh{combine}, $hsh{super_sample},
- $hsh{ssample_param}, $hsh{segments});
+ $hsh{ssample_param}, \@segments);
},
};
$filters{unsharpmask} =
$self->{ERRSTR}=undef; #
$self->{DEBUG}=$DEBUG;
$self->{DEBUG} && print "Initialized Imager\n";
- if ($hsh{xsize} && $hsh{ysize}) { $self->img_set(%hsh); }
+ if (defined $hsh{xsize} && defined $hsh{ysize}) {
+ unless ($self->img_set(%hsh)) {
+ $Imager::ERRSTR = $self->{ERRSTR};
+ return;
+ }
+ }
return $self;
}
my $self = shift;
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "copy() called in void context - copy() returns the copied image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
my $newcopy=Imager->new();
$newcopy->{IMG}=i_img_new();
i_copy($newcopy->{IMG},$self->{IMG});
sub crop {
my $self=shift;
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
- my %hsh=(left=>0,right=>$self->getwidth(),top=>0,bottom=>$self->getheight(),@_);
+
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "crop() called in void context - crop() returns the cropped image at $caller[1] line $caller[2]\n";
+ return;
+ }
- my ($w,$h,$l,$r,$b,$t)=($self->getwidth(),$self->getheight(),
- @hsh{qw(left right bottom top)});
- $l=0 if not defined $l;
- $t=0 if not defined $t;
+ my %hsh=@_;
- $r||=$l+delete $hsh{'width'} if defined $l and exists $hsh{'width'};
- $b||=$t+delete $hsh{'height'} if defined $t and exists $hsh{'height'};
- $l||=$r-delete $hsh{'width'} if defined $r and exists $hsh{'width'};
- $t||=$b-delete $hsh{'height'} if defined $b and exists $hsh{'height'};
+ my ($w, $h, $l, $r, $b, $t) =
+ @hsh{qw(width height left right bottom top)};
- $r=$self->getwidth if not defined $r;
- $b=$self->getheight if not defined $b;
+ # work through the various possibilities
+ if (defined $l) {
+ if (defined $w) {
+ $r = $l + $w;
+ }
+ elsif (!defined $r) {
+ $r = $self->getwidth;
+ }
+ }
+ elsif (defined $r) {
+ if (defined $w) {
+ $l = $r - $w;
+ }
+ else {
+ $l = 0;
+ }
+ }
+ elsif (defined $w) {
+ $l = int(0.5+($self->getwidth()-$w)/2);
+ $r = $l + $w;
+ }
+ else {
+ $l = 0;
+ $r = $self->getwidth;
+ }
+ if (defined $t) {
+ if (defined $h) {
+ $b = $t + $h;
+ }
+ elsif (!defined $b) {
+ $b = $self->getheight;
+ }
+ }
+ elsif (defined $b) {
+ if (defined $h) {
+ $t = $b - $h;
+ }
+ else {
+ $t = 0;
+ }
+ }
+ elsif (defined $h) {
+ $t=int(0.5+($self->getheight()-$h)/2);
+ $b=$t+$h;
+ }
+ else {
+ $t = 0;
+ $b = $self->getheight;
+ }
($l,$r)=($r,$l) if $l>$r;
($t,$b)=($b,$t) if $t>$b;
- if ($hsh{'width'}) {
- $l=int(0.5+($w-$hsh{'width'})/2);
- $r=$l+$hsh{'width'};
- } else {
- $hsh{'width'}=$r-$l;
- }
- if ($hsh{'height'}) {
- $b=int(0.5+($h-$hsh{'height'})/2);
- $t=$h+$hsh{'height'};
- } else {
- $hsh{'height'}=$b-$t;
- }
+ $l < 0 and $l = 0;
+ $r > $self->getwidth and $r = $self->getwidth;
+ $t < 0 and $t = 0;
+ $b > $self->getheight and $b = $self->getheight;
-# print "l=$l, r=$r, h=$hsh{'width'}\n";
-# print "t=$t, b=$b, w=$hsh{'height'}\n";
+ if ($l == $r || $t == $b) {
+ $self->_set_error("resulting image would have no content");
+ return;
+ }
- my $dst=Imager->new(xsize=>$hsh{'width'}, ysize=>$hsh{'height'}, channels=>$self->getchannels());
+ my $dst = $self->_sametype(xsize=>$r-$l, ysize=>$b-$t);
i_copyto($dst->{IMG},$self->{IMG},$l,$t,$r,$b,0,0);
return $dst;
}
+sub _sametype {
+ my ($self, %opts) = @_;
+
+ $self->{IMG} or return $self->_set_error("Not a valid image");
+
+ my $x = $opts{xsize} || $self->getwidth;
+ my $y = $opts{ysize} || $self->getheight;
+ my $channels = $opts{channels} || $self->getchannels;
+
+ my $out = Imager->new;
+ if ($channels == $self->getchannels) {
+ $out->{IMG} = i_sametype($self->{IMG}, $x, $y);
+ }
+ else {
+ $out->{IMG} = i_sametype_chans($self->{IMG}, $x, $y, $channels);
+ }
+ unless ($out->{IMG}) {
+ $self->{ERRSTR} = $self->_error_as_msg;
+ return;
+ }
+
+ return $out;
+}
+
# Sets an image to a certain size and channel number
# if there was previously data in the image it is discarded
$self->{IMG}=Imager::ImgRaw::new($hsh{'xsize'}, $hsh{'ysize'},
$hsh{'channels'});
}
+
+ unless ($self->{IMG}) {
+ $self->{ERRSTR} = Imager->_error_as_msg();
+ return;
+ }
+
+ $self;
}
# created a masked version of the current image
$opts = shift;
}
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "to_paletted() called in void context - to_paletted() returns the converted image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
my $result = Imager->new;
$result->{IMG} = i_img_to_pal($self->{IMG}, $opts);
#print "Type ", i_img_type($result->{IMG}), "\n";
- $result->{IMG} or undef $result;
-
- return $result;
+ if ($result->{IMG}) {
+ return $result;
+ }
+ else {
+ $self->{ERRSTR} = $self->_error_as_msg;
+ return;
+ }
}
# convert a paletted (or any image) to an 8-bit/channel RGB images
my $self = shift;
my $result;
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "to_rgb8() called in void context - to_rgb8() returns the cropped image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
if ($self->{IMG}) {
$result = Imager->new;
$result->{IMG} = i_img_to_rgb($self->{IMG})
undef($self->{IMG});
}
- # FIXME: Find the format here if not specified
- # yes the code isn't here yet - next week maybe?
- # Next week? Are you high or something? That comment
- # has been there for half a year dude.
- # Look, i just work here, ok?
-
my ($IO, $fh) = $self->_get_reader_io(\%input) or return;
unless ($input{'type'}) {
- $input{'type'} = i_test_format_probe($IO, -1);
- }
+ $input{'type'} = i_test_format_probe($IO, -1);
+ }
unless ($input{'type'}) {
$self->_set_error('type parameter missing and not possible to guess from extension');
return undef;
}
+ unless ($formats{$input{'type'}}) {
+ $self->_set_error("format '$input{'type'}' not supported");
+ return;
+ }
+
# Setup data source
if ( $input{'type'} eq 'jpeg' ) {
($self->{IMG},$self->{IPTCRAW}) = i_readjpeg_wiol( $IO );
if ( !defined($self->{IMG}) ) {
- $self->{ERRSTR}='unable to read jpeg image'; return undef;
+ $self->{ERRSTR}=$self->_error_as_msg(); return undef;
}
$self->{DEBUG} && print "loading a jpeg file\n";
return $self;
}
if ( $input{'type'} eq 'tiff' ) {
- $self->{IMG}=i_readtiff_wiol( $IO, -1 ); # Fixme, check if that length parameter is ever needed
+ my $page = $input{'page'};
+ defined $page or $page = 0;
+ # Fixme, check if that length parameter is ever needed
+ $self->{IMG}=i_readtiff_wiol( $IO, -1, $page );
if ( !defined($self->{IMG}) ) {
$self->{ERRSTR}=$self->_error_as_msg(); return undef;
}
if ( $input{'type'} eq 'png' ) {
$self->{IMG}=i_readpng_wiol( $IO, -1 ); # Fixme, check if that length parameter is ever needed
if ( !defined($self->{IMG}) ) {
- $self->{ERRSTR}='unable to read png image';
+ $self->{ERRSTR} = $self->_error_as_msg();
return undef;
}
$self->{DEBUG} && print "loading a png file\n";
$self->{ERRSTR} = "option 'colors' must be a scalar reference";
return undef;
}
- if ($input{colors}) {
- my $colors;
- ($self->{IMG}, $colors) =i_readgif_wiol( $IO );
- if ($colors) {
- ${ $input{colors} } = [ map { NC(@$_) } @$colors ];
+ if ($input{'gif_consolidate'}) {
+ if ($input{colors}) {
+ my $colors;
+ ($self->{IMG}, $colors) =i_readgif_wiol( $IO );
+ if ($colors) {
+ ${ $input{colors} } = [ map { NC(@$_) } @$colors ];
+ }
+ }
+ else {
+ $self->{IMG} =i_readgif_wiol( $IO );
}
}
else {
- $self->{IMG} =i_readgif_wiol( $IO );
+ my $page = $input{'page'};
+ defined $page or $page = 0;
+ $self->{IMG} = i_readgif_single_wiol( $IO, $page );
+ if ($input{colors}) {
+ ${ $input{colors} } =
+ [ i_getcolors($self->{IMG}, 0, i_colorcount($self->{IMG})) ];
+ }
}
+
if ( !defined($self->{IMG}) ) {
$self->{ERRSTR}=$self->_error_as_msg();
return undef;
$input{make_colors} = 'webmap'; # ignored
$input{translate} = 'giflib';
}
- $rc = i_writegif_wiol($IO, \%input, $self->{IMG});
+ if (!i_writegif_wiol($IO, \%input, $self->{IMG})) {
+ $self->{ERRSTR} = $self->_error_as_msg;
+ return;
+ }
}
if (exists $input{'data'}) {
}
}
- &{$filters{$input{'type'}}{callsub}}(%hsh);
+ eval {
+ local $SIG{__DIE__}; # we don't want this processed by confess, etc
+ &{$filters{$input{'type'}}{callsub}}(%hsh);
+ };
+ if ($@) {
+ chomp($self->{ERRSTR} = $@);
+ return;
+ }
my @b=keys %hsh;
my $img = Imager->new();
my $tmp = Imager->new();
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "scale() called in void context - scale() returns the scaled image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
if ($opts{xpixels} and $opts{ypixels} and $opts{'type'}) {
my $self=shift;
my %opts=(scalefactor=>0.5,@_);
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "scaleX() called in void context - scaleX() returns the scaled image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
my $img = Imager->new();
my $self=shift;
my %opts=(scalefactor=>0.5,@_);
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "scaleY() called in void context - scaleY() returns the scaled image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
my $img = Imager->new();
sub rotate {
my $self = shift;
my %opts = @_;
+
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "rotate() called in void context - rotate() returns the rotated image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
if (defined $opts{right}) {
my $degrees = $opts{right};
if ($degrees < 0) {
my $amount = $opts{radians} || $opts{degrees} * 3.1415926535 / 180;
my $result = Imager->new;
- if ($result->{IMG} = i_rotate_exact($self->{IMG}, $amount)) {
+ if ($opts{back}) {
+ $result->{IMG} = i_rotate_exact($self->{IMG}, $amount, $opts{back});
+ }
+ else {
+ $result->{IMG} = i_rotate_exact($self->{IMG}, $amount);
+ }
+ if ($result->{IMG}) {
return $result;
}
else {
}
}
else {
- $self->{ERRSTR} = "Only the 'right' parameter is available";
+ $self->{ERRSTR} = "Only the 'right', 'radians' and 'degrees' parameters are available";
return undef;
}
}
my $self = shift;
my %opts = @_;
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "copy() called in void context - copy() returns the copied image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
if ($opts{matrix}) {
my $xsize = $opts{xsize} || $self->getwidth;
my $ysize = $opts{ysize} || $self->getheight;
my $result = Imager->new;
- $result->{IMG} = i_matrix_transform($self->{IMG}, $xsize, $ysize,
- $opts{matrix})
- or return undef;
+ if ($opts{back}) {
+ $result->{IMG} = i_matrix_transform($self->{IMG}, $xsize, $ysize,
+ $opts{matrix}, $opts{back})
+ or return undef;
+ }
+ else {
+ $result->{IMG} = i_matrix_transform($self->{IMG}, $xsize, $ysize,
+ $opts{matrix})
+ or return undef;
+ }
return $result;
}
$self;
}
+sub getscanline {
+ my $self = shift;
+ my %opts = ( type => '8bit', x=>0, @_);
+
+ defined $opts{width} or $opts{width} = $self->getwidth - $opts{x};
+
+ unless (defined $opts{'y'}) {
+ $self->_set_error("missing y parameter");
+ return;
+ }
+
+ if ($opts{type} eq '8bit') {
+ return i_glin($self->{IMG}, $opts{x}, $opts{x}+$opts{width},
+ $opts{y});
+ }
+ elsif ($opts{type} eq 'float') {
+ return i_glinf($self->{IMG}, $opts{x}, $opts{x}+$opts{width},
+ $opts{y});
+ }
+ else {
+ $self->_set_error("invalid type parameter - must be '8bit' or 'float'");
+ return;
+ }
+}
+
+sub setscanline {
+ my $self = shift;
+ my %opts = ( x=>0, @_);
+
+ unless (defined $opts{'y'}) {
+ $self->_set_error("missing y parameter");
+ return;
+ }
+
+ if (!$opts{type}) {
+ if (ref $opts{pixels} && @{$opts{pixels}}) {
+ # try to guess the type
+ if ($opts{pixels}[0]->isa('Imager::Color')) {
+ $opts{type} = '8bit';
+ }
+ elsif ($opts{pixels}[0]->isa('Imager::Color::Float')) {
+ $opts{type} = 'float';
+ }
+ else {
+ $self->_set_error("missing type parameter and could not guess from pixels");
+ return;
+ }
+ }
+ else {
+ # default
+ $opts{type} = '8bit';
+ }
+ }
+
+ if ($opts{type} eq '8bit') {
+ if (ref $opts{pixels}) {
+ return i_plin($self->{IMG}, $opts{x}, $opts{'y'}, @{$opts{pixels}});
+ }
+ else {
+ return i_plin($self->{IMG}, $opts{x}, $opts{'y'}, $opts{pixels});
+ }
+ }
+ elsif ($opts{type} eq 'float') {
+ if (ref $opts{pixels}) {
+ return i_plinf($self->{IMG}, $opts{x}, $opts{'y'}, @{$opts{pixels}});
+ }
+ else {
+ return i_plinf($self->{IMG}, $opts{x}, $opts{'y'}, $opts{pixels});
+ }
+ }
+ else {
+ $self->_set_error("invalid type parameter - must be '8bit' or 'float'");
+ return;
+ }
+}
+
+sub getsamples {
+ my $self = shift;
+ my %opts = ( type => '8bit', x=>0, @_);
+
+ defined $opts{width} or $opts{width} = $self->getwidth - $opts{x};
+
+ unless (defined $opts{'y'}) {
+ $self->_set_error("missing y parameter");
+ return;
+ }
+
+ unless ($opts{channels}) {
+ $opts{channels} = [ 0 .. $self->getchannels()-1 ];
+ }
+
+ if ($opts{type} eq '8bit') {
+ return i_gsamp($self->{IMG}, $opts{x}, $opts{x}+$opts{width},
+ $opts{y}, @{$opts{channels}});
+ }
+ elsif ($opts{type} eq 'float') {
+ return i_gsampf($self->{IMG}, $opts{x}, $opts{x}+$opts{width},
+ $opts{y}, @{$opts{channels}});
+ }
+ else {
+ $self->_set_error("invalid type parameter - must be '8bit' or 'float'");
+ return;
+ }
+}
+
# make an identity matrix of the given size
sub _identity {
my ($size) = @_;
my ($self, %opts) = @_;
my $matrix;
+ unless (defined wantarray) {
+ my @caller = caller;
+ warn "convert() called in void context - convert() returns the converted image at $caller[1] line $caller[2]\n";
+ return;
+ }
+
# the user can either specify a matrix or preset
# the matrix overrides the preset
if (!exists($opts{matrix})) {
return $self;
}
+my @file_limit_names = qw/width height bytes/;
+
+sub set_file_limits {
+ shift;
+
+ my %opts = @_;
+ my %values;
+
+ if ($opts{reset}) {
+ @values{@file_limit_names} = (0) x @file_limit_names;
+ }
+ else {
+ @values{@file_limit_names} = i_get_image_file_limits();
+ }
+
+ for my $key (keys %values) {
+ defined $opts{$key} and $values{$key} = $opts{$key};
+ }
+
+ i_set_image_file_limits($values{width}, $values{height}, $values{bytes});
+}
+
+sub get_file_limits {
+ i_get_image_file_limits();
+}
+
# Shortcuts that can be exported
sub newcolor { Imager::Color->new(@_); }
my $format;
my $img = Imager->new();
- $img->open(file=>$file) or die $img->errstr();
+ # see Imager::Files for information on the read() method
+ $img->read(file=>$file) or die $img->errstr();
$file =~ s/\.[^.]*$//;
# Create smaller version
+ # documented in Imager::Transformations
my $thumb = $img->scale(scalefactor=>.3);
# Autostretch individual channels
if ($Imager::formats{$format}) {
$file.="_low.$format";
print "Storing image as: $file\n";
+ # documented in Imager::Files
$thumb->write(file=>$file) or
die $thumb->errstr;
last SAVE;
}
}
-
-
-
=head1 DESCRIPTION
Imager is a module for creating and altering images. It can read and
=over
-=item Imager
+=item *
-This document - Synopsis Example, Table of Contents and Overview.
+Imager - This document - Synopsis Example, Table of Contents and
+Overview.
-=item Imager::ImageTypes
+=item *
-Basics of constructing image objects with C<new()>:
-Direct type/virtual images, RGB(A)/paletted images, 8/16/double
-bits/channel, color maps, channel masks, image tags, color
-quantization. Also discusses basic image information methods.
+L<Imager::Tutorial> - a brief introduction to Imager.
-=item Imager::Files
+=item *
-IO interaction, reading/writing images, format specific tags.
+L<Imager::Cookbook> - how to do various things with Imager.
-=item Imager::Draw
+=item *
-Drawing Primitives, lines, boxes, circles, arcs, flood fill.
+L<Imager::ImageTypes> - Basics of constructing image objects with
+C<new()>: Direct type/virtual images, RGB(A)/paletted images,
+8/16/double bits/channel, color maps, channel masks, image tags, color
+quantization. Also discusses basic image information methods.
-=item Imager::Color
+=item *
-Color specification.
+L<Imager::Files> - IO interaction, reading/writing images, format
+specific tags.
-=item Imager::Fill
+=item *
-Fill pattern specification.
+L<Imager::Draw> - Drawing Primitives, lines, boxes, circles, arcs,
+flood fill.
-=item Imager::Font
+=item *
-General font rendering, bounding boxes and font metrics.
+L<Imager::Color> - Color specification.
-=item Imager::Transformations
+=item *
-Copying, scaling, cropping, flipping, blending, pasting, convert and
-map.
+L<Imager::Fill> - Fill pattern specification.
-=item Imager::Engines
+=item *
-Programmable transformations through C<transform()>, C<transform2()>
-and C<matrix_transform()>.
+L<Imager::Font> - General font rendering, bounding boxes and font
+metrics.
-=item Imager::Filters
+=item *
-Filters, sharpen, blur, noise, convolve etc. and filter plugins.
+L<Imager::Transformations> - Copying, scaling, cropping, flipping,
+blending, pasting, convert and map.
-=item Imager::Expr
+=item *
-Expressions for evaluation engine used by transform2().
+L<Imager::Engines> - Programmable transformations through
+C<transform()>, C<transform2()> and C<matrix_transform()>.
-=item Imager::Matrix2d
+=item *
-Helper class for affine transformations.
+L<Imager::Filters> - Filters, sharpen, blur, noise, convolve etc. and
+filter plugins.
-=item Imager::Fountain
+=item *
-Helper for making gradient profiles.
+L<Imager::Expr> - Expressions for evaluation engine used by
+transform2().
-=back
+=item *
+
+L<Imager::Matrix2d> - Helper class for affine transformations.
+=item *
+L<Imager::Fountain> - Helper for making gradient profiles.
+
+=back
=head2 Basic Overview
Examples:
$img=Imager->new(); # create empty image
- $img->open(file=>'lena.png',type=>'png') or # read image from file
+ $img->read(file=>'lena.png',type=>'png') or # read image from file
die $img->errstr(); # give an explanation
# if something failed
In cases where no image object is associated with an operation
C<$Imager::ERRSTR> is used to report errors not directly associated
-with an image object.
+with an image object. You can also call C<Imager->errstr> to get this
+value.
+
+The C<Imager-E<gt>new> method is described in detail in
+L<Imager::ImageTypes>.
+
+=head1 METHOD INDEX
+
+Where to find information on methods for Imager class objects.
+
+addcolors() - L<Imager::ImageTypes>
+
+addtag() - L<Imager::ImageTypes> - add image tags
+
+arc() - L<Imager::Draw/arc>
+
+bits() - L<Imager::ImageTypes> - number of bits per sample for the
+image
+
+box() - L<Imager::Draw/box>
+
+circle() - L<Imager::Draw/circle>
+
+colorcount() - L<Imager::Draw/colorcount>
+
+convert() - L<Imager::Transformations/"Color transformations"> -
+transform the color space
+
+copy() - L<Imager::Transformations/copy>
+
+crop() - L<Imager::Transformations/crop> - extract part of an image
+
+deltag() - L<Imager::ImageTypes> - delete image tags
+
+difference() - L<Imager::Filters/"Image Difference">
+
+errstr() - L<Imager/"Basic Overview">
+
+filter() - L<Imager::Filters>
+
+findcolor() - L<Imager::ImageTypes> - search the image palette, if it
+has one
+
+flip() - L<Imager::Transformations/flip>
+
+flood_fill() - L<Imager::Draw/flood_fill>
+
+getchannels() - L<Imager::ImageTypes>
+
+getcolorcount() - L<Imager::ImageTypes>
+
+getcolors() - L<Imager::ImageTypes> - get colors from the image
+palette, if it has one
+
+get_file_limits() - L<Imager::Files/"Limiting the sizes of images you read">
+
+getheight() - L<Imager::ImageTypes>
+
+getpixel() - L<Imager::Draw/setpixel and getpixel>
+
+getsamples() - L<Imager::Draw/getsamples>
+
+getscanline() - L<Imager::Draw/getscanline>
+
+getwidth() - L<Imager::ImageTypes>
+
+img_set() - L<Imager::ImageTypes>
+
+line() - L<Imager::Draw/line>
+
+map() - L<Imager::Transformations/"Color Mappings"> - remap color
+channel values
+
+masked() - L<Imager::ImageTypes> - make a masked image
+
+matrix_transform() - L<Imager::Engines/"Matrix Transformations">
+
+maxcolors() - L<Imager::ImageTypes/maxcolor>
+
+new() - L<Imager::ImageTypes>
+
+open() - L<Imager::Files> - an alias for read()
+
+paste() - L<Imager::Transformations/paste> - draw an image onto an image
+
+polygon() - L<Imager::Draw/polygon>
+
+polyline() - L<Imager::Draw/polyline>
+
+read() - L<Imager::Files> - read a single image from an image file
+
+read_multi() - L<Imager::Files> - read multiple images from an image
+file
+
+rotate() - L<Imager::Transformations/rotate>
+
+rubthrough() - L<Imager::Transformations/rubthrough> - draw an image onto an
+image and use the alpha channel
+
+scale() - L<Imager::Transformations/scale>
-The C<Imager-E<gt>new> method is described in detail in the
-Imager::ImageTypes manpage.
+setscanline() - L<Imager::Draw/setscanline>
+
+scaleX() - L<Imager::Transformations/scaleX>
+
+scaleY() - L<Imager::Transformations/scaleY>
+
+setcolors() - L<Imager::ImageTypes> - set palette colors in a paletted image
+
+setpixel() - L<Imager::Draw/setpixel and getpixel>
+
+set_file_limits() - L<Imager::Files/"Limiting the sizes of images you read">
+
+string() - L<Imager::Font/string> - draw text on an image
+
+tags() - L<Imager::ImageTypes> - fetch image tags
+
+to_paletted() - L<Imager::ImageTypes>
+
+to_rgb8() - L<Imager::ImageTypes>
+
+transform() - L<Imager::Engines/"transform">
+
+transform2() - L<Imager::Engines/"transform2">
+
+type() - L<Imager::ImageTypes> - type of image (direct vs paletted)
+
+virtual() - L<Imager::ImageTypes> - whether the image has it's own
+data
+
+write() - L<Imager::Files> - write an image to a file
+
+write_multi() - L<Imager::Files> - write multiple image to an image
+file.
+
+=head1 CONCEPT INDEX
+
+animated GIF - L<Imager::File/"Writing an animated GIF">
+
+aspect ratio - L<Imager::ImageTypes/i_xres>,
+L<Imager::ImageTypes/i_yres>, L<Imager::ImageTypes/i_aspect_only>
+
+blur - L<Imager::Filters/guassian>, L<Imager::Filters/conv>
+
+boxes, drawing - L<Imager::Draw/box>
+
+color - L<Imager::Color>
+
+color names - L<Imager::Color>, L<Imager::Color::Table>
+
+combine modes - L<Imager::Fill/combine>
+
+contrast - L<Imager::Filter/contrast>, L<Imager::Filter/autolevels>
+
+convolution - L<Imager::Filter/conv>
+
+cropping - L<Imager::Transformations/crop>
+
+dpi - L<Imager::ImageTypes/i_xres>
+
+drawing boxes - L<Imager::Draw/box>
+
+drawing lines - L<Imager::Draw/line>
+
+drawing text - L<Imager::Font/string>, L<Imager::Font/align>
+
+error message - L<Imager/"Basic Overview">
+
+files, font - L<Imager::Font>
+
+files, image - L<Imager::Files>
+
+filling, types of fill - L<Imager::Fill>
+
+filling, boxes - L<Imager::Draw/box>
+
+filling, flood fill - L<Imager::Draw/flood_fill>
+
+flood fill - L<Imager::Draw/flood_fill>
+
+fonts - L<Imager::Font>
+
+fonts, drawing with - L<Imager::Font/string>, L<Imager::Font/align>,
+L<Imager::Font::Wrap>
+
+fonts, metrics - L<Imager::Font/bounding_box>, L<Imager::Font::BBox>
+
+fonts, multiple master - L<Imager::Font/"MULTIPLE MASTER FONTS">
+
+fountain fill - L<Imager::Fill/"Fountain fills">,
+L<Imager::Filters/fountain>, L<Imager::Fountain>,
+L<Imager::Filters/gradgen>
+
+GIF files - L<Imager::Files/"GIF">
+
+GIF files, animated - L<Imager::File/"Writing an animated GIF">
+
+gradient fill - L<Imager::Fill/"Fountain fills">,
+L<Imager::Filters/fountain>, L<Imager::Fountain>,
+L<Imager::Filters/gradgen>
+
+guassian blur - L<Imager::Filter/guassian>
+
+hatch fills - L<Imager::Fill/"Hatched fills">
+
+invert image - L<Imager::Filter/hardinvert>
+
+JPEG - L<Imager::Files/"JPEG">
+
+limiting image sizes - L<Imager::Files/"Limiting the sizes of images you read">
+
+lines, drawing - L<Imager::Draw/line>
+
+matrix - L<Imager::Matrix2d>,
+L<Imager::Transformations/"Matrix Transformations">,
+L<Imager::Font/transform>
+
+metadata, image - L<Imager::ImageTypes/"Tags">
+
+mosaic - L<Imager::Filter/mosaic>
+
+noise, filter - L<Imager::Filter/noise>
+
+noise, rendered - L<Imager::Filter/turbnoise>,
+L<Imager::Filter/radnoise>
+
+posterize - L<Imager::Filter/postlevels>
+
+png files - L<Imager::Files>, L<Imager::Files/"PNG">
+
+pnm - L<Imager::Files/"PNM (Portable aNy Map)">
+
+rectangles, drawing - L<Imager::Draw/box>
+
+resizing an image - L<Imager::Transformations/scale>,
+L<Imager::Transformations/crop>
+
+saving an image - L<Imager::Files>
+
+scaling - L<Imager::Transformations/scale>
+
+sharpen - L<Imager::Filters/unsharpmask>, L<Imager::Filters/conv>
+
+size, image - L<Imager::ImageTypes/getwidth>,
+L<Imager::ImageTypes/getheight>
+
+size, text - L<Imager::Font/bounding_box>
+
+text, drawing - L<Imager::Font/string>, L<Imager::Font/align>,
+L<Imager::Font::Wrap>
+
+text, wrapping text in an area - L<Imager::Font::Wrap>
+
+text, measuring - L<Imager::Font/bounding_box>, L<Imager::Font::BBox>
+
+tiles, color - L<Imager::Filter/mosaic>
+
+unsharp mask - L<Imager::Filter/unsharpmask>
+
+watermark - L<Imager::Filter/watermark>
+
+writing an image - L<Imager::Files>
=head1 SUPPORT
where you can also find the mailing list archive.
If you're into IRC, you can typically find the developers in #Imager
-on irc.rhizomatic.net. As with any IRC channel, the participants
-could be occupied or asleep, so please be patient.
+on irc.perl.org. As with any IRC channel, the participants could be
+occupied or asleep, so please be patient.
+
+You can report bugs by pointing your browser at:
+
+ https://rt.cpan.org/NoAuth/ReportBug.html?Queue=Imager
+
+Please remember to include the versions of Imager, perl, supporting
+libraries, and any relevant code. If you have specific images that
+cause the problems, please include those too.
=head1 BUGS
Imager::Expr(3), Imager::Matrix2d(3), Imager::Fountain(3)
Affix::Infix2Postfix(3), Parse::RecDescent(3)
-http://www.eecs.umich.edu/~addi/perl/Imager/
+http://imager.perl.org/
=cut
-
-
-
-
projects / imager.git / blobdiff