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- #!/usr/bin/perl
-
- # slightly edited by pcg@goof.com
-
- use Gimp qw(:auto);
- use Gimp::Fu;
-
- sub warp_sharp {
- my ($img, $drw, $edge_strength, $blur_strength,
- $bump_depth, $displace_amount)=@_;
- my $drawable_width=$drw->width;
- my $drawable_height=$drw->height;
- my $drawable_type=($drw->type);
- my $edge_layer=gimp_layer_copy($drw,0);
- my $x_displace_layer=
- $img->layer_new($drawable_width, $drawable_height,
- $drawable_type, "Displace X", 100, 0);
- my $y_displace_layer=
- $img->layer_new($drawable_width, $drawable_height,
- $drawable_type, "Displace Y", 100, 0);
- my @selection_info=$img->selection_bounds;
- my $has_selection=$selection_info[0];
- my $old_selection;
- my $bump_xoff;
- my $bump_yoff;
- my $version=1;
-
- # Gimp::set_trace(TRACE_ALL);
- $img->undo_push_group_start;
- if ($has_selection) {
- $old_selection=$img->gimp_selection_save;
- $img->selection_grow($blur_strength + $bump_depth + $displace_amount);
- $bump_xoff=$selection_info[1];
- $bump_yoff=$selection_info[2];
- }
- $x_displace_layer->fill(1 + $version);
- $y_displace_layer->fill(1 + $version);
- $img->add_layer($edge_layer,-1);
- $img->add_layer($x_displace_layer,-1);
- $img->add_layer($y_displace_layer,-1);
-
- plug_in_edge($img,$edge_layer,$edge_strength,1);
-
- plug_in_gauss_iir($img, $edge_layer, $blur_strength, 1, 1)
- if ($blur_strength >= 1);
-
- plug_in_bump_map($img,$x_displace_layer,$edge_layer, 0, 30,
- $bump_depth, $bump_xoff,$bump_yoff, 0,0,0,0,0);
-
- plug_in_bump_map($img,$y_displace_layer,$edge_layer, 270, 30,
- $bump_depth, $bump_xoff,$bump_yoff, 0,0,0,0,0);
-
- if ($has_selection) {
- $old_selection->gimp_selection_load;
- $old_selection->remove_channel;
- # will cause a crash:
- # $old_selection->gimp_channel_delete;
- }
-
- plug_in_displace($img,$drw, $displace_amount, $displace_amount, 1,1,
- $x_displace_layer, $y_displace_layer, 1);
-
- $img->remove_layer($edge_layer);
- $img->remove_layer($x_displace_layer);
- $img->remove_layer($y_displace_layer);
- $img->undo_push_group_end;
- gimp_displays_flush();
- return undef;
- }
-
-
- register
- "plug_in_warp_sharp",
- "Sharpen the current drawable",
- "Sharpen the current drawable by squeezing unsharp edges. Algorithm described by Joern Loviscach in c't 22/1999, p 236.",
- "Simon Budig <simon\@gimp.org>, Peter Daum <gator\@cs.tu-berlin.de>",
- "Simon Budig, Peter Daum",
- "2000-05-11",
- N_"<Image>/Filters/Enhance/Warp Sharp...",
- "RGB*, GRAY*",
- [
- [PF_SLIDER, "edge_detection", "Edge detection", 7, [1, 10, 0.1]],
- [PF_SLIDER, "blur_radius", "Blur radius", 3, [0, 10, 0.1]],
- [PF_SLIDER, "bump_depth", "Bump depth", 2, [1, 10, 1]],
- [PF_SLIDER, "intensity", "Displace Intensity", 2.5, [0.1, 10, 0.1]]
- ],
- [],
- ['gimp-1.1'],
- \&warp_sharp;
-
-
- exit main;
-