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added gamma method

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This commit is contained in:
Oliver Vogel 2013-12-11 20:55:41 +01:00
parent 207010c76f
commit 4956f25b68
2 changed files with 25 additions and 0 deletions
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14
src/Intervention/Image/Image.php
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@ -1365,6 +1365,20 @@ class Image
return $this;
}
/**
* Applies gamma correction
*
* @param float $input
* @param float $output
* @return Image
*/
public function gamma($input, $output)
{
imagegammacorrect($this->resource, $input, $output);
return $this;
}
/**
* Reset to original image resource
*

11
tests/ImageTest.php
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@ -1400,6 +1400,17 @@ class ImageTest extends PHPUnit_Framework_Testcase
$this->assertEquals(( ord($contents[28]) != '0' ), false);
}
public function testGammaImage()
{
$img = Image::make('public/tile.png');
$img->gamma(1.0, 1.6);
$this->assertInstanceOf('Intervention\Image\Image', $img);
$color1 = $img->pickColor(0, 0, 'hex');
$color2 = $img->pickColor(10, 10, 'hex');
$this->assertEquals('#cdeb00', $color1);
$this->assertEquals('#707d8a', $color2);
}
public function testSaveImage()
{
$save_as = 'public/test2.jpg';