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PSR2 total compliance. Fixes #4
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@jdeniau
jdeniau committed Nov 26, 2013
1 parent 48ff69f commit 5ee56b1
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Showing 5 changed files with 413 additions and 408 deletions.
262 changes: 132 additions & 130 deletions src/stojg/crop/Crop.php
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Original file line number Diff line number Diff line change
Expand Up @@ -9,18 +9,18 @@
*/
abstract class Crop
{
/**
* Timer used for profiler / debugging
*
* @var float
*/
protected static $start_time = 0.0;

/**
*
* @var \Imagick
*/
protected $originalImage = null;
/**
* Timer used for profiler / debugging
*
* @var float
*/
protected static $start_time = 0.0;

/**
*
* @var \Imagick
*/
protected $originalImage = null;

/**
* baseDimension
Expand All @@ -30,128 +30,130 @@ abstract class Crop
*/
protected $baseDimension;


/**
* Profiling method
*/
public static function start()
/**
* Profiling method
*/
public static function start()
{
self::$start_time = microtime(true);
}

/**
* Profiling method
*
* @return string
*/
public static function mark()
self::$start_time = microtime(true);
}

/**
* Profiling method
*
* @return string
*/
public static function mark()
{
$end_time = (microtime(true) - self::$start_time) * 1000;
return sprintf("%.1fms", $end_time);
}

/**
*
* @param string $imagePath - The path to an image to load. Paths can include wildcards for file names,
* or can be URLs.
*/
public function __construct($imagePath)
$end_time = (microtime(true) - self::$start_time) * 1000;

return sprintf("%.1fms", $end_time);
}

/**
*
* @param string $imagePath - The path to an image to load. Paths can include wildcards for file names,
* or can be URLs.
*/
public function __construct($imagePath)
{
$this->originalImage = new \Imagick($imagePath);
$this->originalImage = new \Imagick($imagePath);

// set base image dimensions
$this->setBaseDimensions(
$this->setBaseDimensions(
$this->originalImage->getImageWidth(),
$this->originalImage->getImageHeight()
);
}
/**
* Get the area in pixels for this image
*
* @param \Imagick $image
* @return int
*/
protected function area(\Imagick $image)
}

/**
* Get the area in pixels for this image
*
* @param \Imagick $image
* @return int
*/
protected function area(\Imagick $image)
{
$size = $image->getImageGeometry();
return $size['height'] * $size['width'];
}

/**
* Resize and crop the image so it dimensions matches $targetWidth and $targetHeight
*
* @param string $imagePath
* @param int $targetWidth
* @param int $targetHeight
* @return boolean|\Imagick
*/
public function resizeAndCrop($targetWidth, $targetHeight)
$size = $image->getImageGeometry();

return $size['height'] * $size['width'];
}

/**
* Resize and crop the image so it dimensions matches $targetWidth and $targetHeight
*
* @param int $targetWidth
* @param int $targetHeight
* @return boolean|\Imagick
*/
public function resizeAndCrop($targetWidth, $targetHeight)
{
// First get the size that we can use to safely trim down the image without cropping any sides
$crop = $this->getSafeResizeOffset($this->originalImage, $targetWidth, $targetHeight);
// Resize the image
$this->originalImage->resizeImage($crop['width'], $crop['height'], \Imagick::FILTER_CUBIC, .5);
// Get the offset for cropping the image further
$offset = $this->getSpecialOffset($this->originalImage, $targetWidth, $targetHeight);
// Crop the image
$this->originalImage->cropImage($targetWidth, $targetHeight, $offset['x'], $offset['y']);
return $this->originalImage;
}

/**
* Returns width and height for resizing the image, keeping the aspect ratio
* and allow the image to be larger than either the width or height
*
* @param \Imagick $image
* @param int $targetWidth
* @param int $targetHeight
* @return array
*/
protected function getSafeResizeOffset(\Imagick $image, $targetWidth, $targetHeight)
// First get the size that we can use to safely trim down the image without cropping any sides
$crop = $this->getSafeResizeOffset($this->originalImage, $targetWidth, $targetHeight);
// Resize the image
$this->originalImage->resizeImage($crop['width'], $crop['height'], \Imagick::FILTER_CUBIC, .5);
// Get the offset for cropping the image further
$offset = $this->getSpecialOffset($this->originalImage, $targetWidth, $targetHeight);
// Crop the image
$this->originalImage->cropImage($targetWidth, $targetHeight, $offset['x'], $offset['y']);

return $this->originalImage;
}

/**
* Returns width and height for resizing the image, keeping the aspect ratio
* and allow the image to be larger than either the width or height
*
* @param \Imagick $image
* @param int $targetWidth
* @param int $targetHeight
* @return array
*/
protected function getSafeResizeOffset(\Imagick $image, $targetWidth, $targetHeight)
{
$source = $image->getImageGeometry();
if (($source['width'] / $source['height']) < ($targetWidth / $targetHeight)) {
$scale = $source['width'] / $targetWidth;
} else {
$scale = $source['height'] / $targetHeight;
}
return array('width' => (int) ($source['width'] / $scale), 'height' => (int) ($source['height'] / $scale));
}

/**
* Returns a YUV weighted greyscale value
*
* @param int $r
* @param int $g
* @param int $b
* @return int
* @see http://en.wikipedia.org/wiki/YUV
*/
protected function rgb2bw($r, $g, $b)
$source = $image->getImageGeometry();
if (($source['width'] / $source['height']) < ($targetWidth / $targetHeight)) {
$scale = $source['width'] / $targetWidth;
} else {
$scale = $source['height'] / $targetHeight;
}

return array('width' => (int) ($source['width'] / $scale), 'height' => (int) ($source['height'] / $scale));
}

/**
* Returns a YUV weighted greyscale value
*
* @param int $r
* @param int $g
* @param int $b
* @return int
* @see http://en.wikipedia.org/wiki/YUV
*/
protected function rgb2bw($r, $g, $b)
{
return ($r*0.299)+($g*0.587)+($b*0.114);
}

/**
*
* @param array $histogram - a value[count] array
* @param int $area
* @return float
*/
protected function getEntropy($histogram, $area)
return ($r*0.299)+($g*0.587)+($b*0.114);
}

/**
*
* @param array $histogram - a value[count] array
* @param int $area
* @return float
*/
protected function getEntropy($histogram, $area)
{
$value = 0.0;

for ($idx = 0; $idx < count($histogram); $idx++) {
// calculates the percentage of pixels having this color value
$p = $histogram[$idx]->getColorCount() / $area;
// A common way of representing entropy in scalar
$value = $value + $p * log($p, 2);
}
// $value is always 0.0 or negative, so transform into positive scalar value
return -$value;
}
$value = 0.0;

for ($idx = 0; $idx < count($histogram); $idx++) {
// calculates the percentage of pixels having this color value
$p = $histogram[$idx]->getColorCount() / $area;
// A common way of representing entropy in scalar
$value = $value + $p * log($p, 2);
}
// $value is always 0.0 or negative, so transform into positive scalar value
return -$value;
}

/**
* setBaseDimensions
Expand All @@ -164,6 +166,7 @@ protected function getEntropy($histogram, $area)
protected function setBaseDimensions($width, $height)
{
$this->baseDimension = ['width' => $width, 'height' => $height];

return $this;
}

Expand All @@ -185,14 +188,13 @@ protected function getBaseDimension($key)
}
}


/**
* get special offset for class
*
* @param \Imagick $original
* @param int $targetWidth
* @param int $targetHeight
* @return array
*/
/**
* get special offset for class
*
* @param \Imagick $original
* @param int $targetWidth
* @param int $targetHeight
* @return array
*/
abstract protected function getSpecialOffset(\Imagick $original, $targetWidth, $targetHeight);
}
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