Gecko [ www.finalhopeacademy.com ]

Name	Size	Permission
Makefile	360 B	-rw-r--r--
README	124 B	-rw-r--r--
Turtle.pm	868 B	-rw-r--r--
annotate.pl	1.41 KB	-rw-r--r--
annotate_words.pl	1.96 KB	-rw-r--r--
button.pl	397 B	-rw-r--r--
compose-specials.pl	5.38 KB	-rw-r--r--
composite.pl	1.55 KB	-rw-r--r--
demo.pl	11.86 KB	-rw-r--r--
dst.png	437 B	-rw-r--r--
lsys.pl	2.34 KB	-rw-r--r--
model.gif	22.88 KB	-rw-r--r--
piddle.pl	1.9 KB	-rw-r--r--
pink-flower.gif	544 B	-rw-r--r--
pixel-fx.pl	1.56 KB	-rw-r--r--
red-flower.gif	694 B	-rw-r--r--
settings.pl	782 B	-rw-r--r--
shadow-text.pl	521 B	-rw-r--r--
shapes.pl	1.21 KB	-rw-r--r--
single-pixels.pl	1.16 KB	-rw-r--r--
smile.gif	1.32 KB	-rw-r--r--
src.png	400 B	-rw-r--r--
steganography.pl	682 B	-rw-r--r--
tile.gif	1.53 KB	-rw-r--r--
tree.pl	829 B	-rw-r--r--
yellow-flower.gif	565 B	-rw-r--r--

Name

Size

Permission

Action

Makefile

360 B

-rw-r--r--

README

124 B

-rw-r--r--

Turtle.pm

868 B

-rw-r--r--

annotate.pl

1.41 KB

-rw-r--r--

annotate_words.pl

1.96 KB

-rw-r--r--

button.pl

397 B

-rw-r--r--

compose-specials.pl

5.38 KB

-rw-r--r--

composite.pl

1.55 KB

-rw-r--r--

demo.pl

11.86 KB

-rw-r--r--

dst.png

437 B

-rw-r--r--

lsys.pl

2.34 KB

-rw-r--r--

model.gif

22.88 KB

-rw-r--r--

piddle.pl

1.9 KB

-rw-r--r--

pink-flower.gif

544 B

-rw-r--r--

pixel-fx.pl

1.56 KB

-rw-r--r--

red-flower.gif

694 B

-rw-r--r--

settings.pl

782 B

-rw-r--r--

shadow-text.pl

521 B

-rw-r--r--

shapes.pl

1.21 KB

-rw-r--r--

single-pixels.pl

1.16 KB

-rw-r--r--

smile.gif

1.32 KB

-rw-r--r--

src.png

400 B

-rw-r--r--

steganography.pl

682 B

-rw-r--r--

tile.gif

1.53 KB

-rw-r--r--

tree.pl

829 B

-rw-r--r--

yellow-flower.gif

565 B

-rw-r--r--

Code Editor : single-pixels.pl

#!/usr/bin/perl

eval 'exec /usr/bin/perl  -S $0 ${1+"$@"}'
    if 0; # not running under some shell
#
# Methods for to Get and Set single pixels in images using PerlMagick
#
use strict;
use Image::Magick;

# read image
my $im=Image::Magick->new();
$im->Read('logo:');

# ---

# Get/Set a single pixel as a string
my $skin=$im->Get('pixel[400,200]');
print "Get('pixel[x,y]') = ", $skin, "\n";

$im->Set('pixel[1,1]'=>'0,0,0,0');
$im->Set('pixel[2,1]'=>$skin);
$im->Set('pixel[3,1]'=>'green');
$im->Set('pixel[4,1]'=>'rgb(255,0,255)');

# ---

# More direct single pixel access
my @pixel = $im->GetPixel( x=>400, y=>200 );
print "GetPixel() = ", "@pixel", "\n";

# modify the pixel values (as normalized floats)
$pixel[0] = $pixel[0]/2;      # darken red value
$pixel[1] = 0.0;              # junk green value
$pixel[2] = 0.0;              # junk blue value

# write pixel to destination
# (quantization and clipping happens here)
$im->SetPixel(x=>5,y=>1,color=>\@pixel);

# ---

# crop, scale, display the changed pixels
$im->Crop(geometry=>'7x3+0+0');
$im->Set(page=>'0x0+0+0');
$im->Scale('1000%');

# Output the changed pixels
$im->Write('win:');
$im->Write('single-pixels.gif');

${this.title}

Code Editor : single-pixels.pl