Sveiki, ar esat kas domejesi nutrauku filtrais su php? Zinau, kad yra ne vienas budas, bet konkreciai noriu suzinot apie si, kuris man ne velnio neveikia. Kodel apie si? Todel kad gal but sitas budas funkcionalesnis? Tai ir noriu suzinoti. Radau dokumentacija internete, bet niekur nerandu placiau. Gal kas suprantat kas cia vyksta, nes man tai kazkodel sugeneruoja tokia pacia nuotrauka(nepakitusia). Galvojau kad nuotrauka bet kokia netinka, bet isbandziau as ju begale ir vistiek nieko nepakito.
Taigi pasakoju. Idedu tik esme.
<?php
$instagraph = new Instagraph;
$instagraph->setInput($filepath); //Kelias iki norimos nuotraukos
$instagraph->setOutput($output); //Kelias iki busimos nuotraukos
$instagraph->process($_GET['filter']); //vyksta procesas kurio metu sukriamas tmp failas jam priskiriamas jpg nuotraukos turinys ir jis redaguojamas. Tada redaguotas tmp issaugomas kaip naujas jpg
?>
ir klase:
<?php
class Instagraph
{
public $_input = null;
public $_output = null;
public $_prefix = 'IMG';
private $_width = null;
private $_height = null;
private $_tmp = null;
public function setInput($path)
{
if (file_exists($path))
{
$this->_input = $path;
list($this->_width, $this->_height) = getimagesize($path);
if($this->_width > 720)
{
$this->resize(720, 480);
}
return true;
}
return false;
}
public function setOutput($path)
{
$this->_output = $path;
return true;
}
public function process($filter)
{
$method = 'filter' . $filter;
if (method_exists($this, $method))
{
$this->tempfile();
$this->{$method}();
$this->output();
return true;
}
return false;
}
public function tempfile()
{
# copy original file and assign temporary name
$this->_tmp = tempnam('/tmp', 'INST');
copy($this->_input, $this->_tmp);
}
public function output()
{
# rename working temporary file to output filename
copy($this->_tmp, $this->_output);
}
public function execute($command)
{
# remove newlines and convert single quotes to double to prevent errors
$command = str_replace(array("\n", "'"), array('', '"'), $command);
# replace multiple spaces with one
$command = preg_replace('#(\s){2,}#is', ' ', $command);
# escape shell metacharacters
$command = escapeshellcmd($command);
# execute convert program
return shell_exec($command);
}
/** ACTIONS */
public function resize($w, $h)
{
$this->execute("convert $this->_input -resize {$w}x{$h} -unsharp 1.5×1.0+1.5+0.02 $this->_input");
}
public function colortone($color, $level, $type = 0)
{
$args[0] = $level;
$args[1] = 100 - $level;
$negate = $type == 0 ? '-negate' : '';
$this->execute("convert
{$this->_tmp}
( -clone 0 -fill $color -colorize 100% )
( -clone 0 -colorspace gray $negate )
-compose blend -define compose:args=$args[0],$args[1] -composite
{$this->_tmp}");
}
public function border($color = 'black', $width = 20)
{
$this->execute("convert $this->_tmp -bordercolor $color -border {$width}x{$width} $this->_tmp");
}
public function frame($frame)
{
$frame = dirname(realpath(__FILE__)) . '/' . $frame;
$this->execute("convert $this->_tmp ( $frame -resize {$this->_width}x{$this->_height}! -unsharp 1.5×1.0+1.5+0.02 ) -flatten $this->_tmp");
}
public function vignette($color_1 = 'none', $color_2 = 'black', $crop_factor = 1.5)
{
$crop_x = floor($this->_width * $crop_factor);
$crop_y = floor($this->_height * $crop_factor);
$this->execute("convert
( {$this->_tmp} )
( -size {$crop_x}x{$crop_y}
radial-gradient:$color_1-$color_2
-gravity center -crop {$this->_width}x{$this->_height}+0+0 +repage )
-compose multiply -flatten
{$this->_tmp}");
}
/** FILTER METHODS */
public function filterGotham()
{
$this->execute("convert $this->_tmp -modulate 120,10,100 -fill #222b6d -colorize 20 -gamma 0.5 -contrast -contrast $this->_tmp");
$this->border($this->_tmp);
}
public function filterToaster()
{
$this->colortone('#330000', 100, 0);
$this->execute("convert $this->_tmp -modulate 150,80,100 -gamma 1.2 -contrast -contrast $this->_tmp");
$this->vignette('none', 'LavenderBlush3');
$this->vignette('#ff9966', 'none');
}
public function filterNashville()
{
$this->colortone('#222b6d', 100, 0);
$this->colortone('#f7daae', 100, 1);
$this->execute("convert $this->_tmp -contrast -modulate 100,150,100 -auto-gamma $this->_tmp");
$this->frame('Assets/Frames/Nashville');
}
public function filterLomo()
{
$command = "convert $this->_tmp -channel R -level 33% -channel G -level 33% $this->_tmp";
$this->execute($command);
$this->vignette();
}
public function filterKelvin()
{
$this->execute("convert
( $this->_tmp -auto-gamma -modulate 120,50,100 )
( -size {$this->_width}x{$this->_height} -fill rgba(255,153,0,0.5) -draw 'rectangle 0,0 {$this->_width},{$this->_height}' )
-compose multiply
$this->_tmp");
$this->frame('Assets/Frames/Kelvin');
}
public function filterTiltShift()
{
$this->execute("convert
( $this->_tmp -gamma 0.75 -modulate 100,130 -contrast )
( +clone -sparse-color Barycentric '0,0 black 0,%h white' -function polynomial 4,-4,1 -level 0,50% )
-compose blur -set option:compose:args 5 -composite
$this->_tmp");
}
}
?>
Siaip kodo vykdymas ir t.t. aisku tik esme tame kad nesuprantu kur ir kas vykdoma cia. Ir galvoju kad galbut man ju nevykdo?
<?php
execute("convert
( $this->_tmp -auto-gamma -modulate 120,50,100 )
( -size {$this->_width}x{$this->_height} -fill rgba(255,153,0,0.5) -draw 'rectangle 0,0 {$this->_width},{$this->_height}' )
-compose multiply
$this->_tmp");
?>
Ar gabut eina sias eilutes kazkur ivykdyti be php?
