Adjusting Brightness, Contrast and Gamma in PHP

Aspose.Imaging - Adjusting Brightness

To Adjust Brightness of an image using Aspose.Imaging Java for PHP, call adjust_brightness method of AdjustingColors module. Here you can see example code.

PHP Code

 public static function adjust_brightness($dataDir=null){

\# Load an existing image

$image=new Image();

$image = $image->load($dataDir . "test.jpg");

\# Check if image is cached

if (!$image->isCached()) {

\# Cache image if not already cached

$image->cacheData();

}

\# Adjust the brightness

$image->adjustBrightness(70);

\# Save the image to disk

$image->save($dataDir . "adjust_brightness.jpg");

\# Display Status.

print "Adjust image brightness successfully!".PHP_EOL;

}

Aspose.Imaging - Adjusting Contrast

To Adjust Contrast of an image using Aspose.Imaging Java for PHP, call adjust_contrast method of AdjustingColors module. Here you can see example code.

PHP Code

 public static function adjust_contrast($dataDir=null){

\# Load an existing image

$image=new Image();

$image = $image->load($dataDir . "test.jpg");

\# Check if image is cached

if (!$image->isCached()) {

\# Cache image if not already cached

$image->cacheData();

}

\# Adjust the contrast

$image->adjustContrast(10);

\# Save the image to disk

$image->save($dataDir . "adjust_contrast.jpg");

\# Display Status.

print "Adjust image contrast successfully!".PHP_EOL;

}

Aspose.Imaging - Adjusting Gamma

To Adjust Gamma of an image using Aspose.Imaging Java for PHP, call adjust_gamma method of AdjustingColors module. Here you can see example code.

PHP Code

 public static function adjust_gamma($dataDir=null){

\# Load an existing image

$image=new Image();

$image = $image->load($dataDir . "test.jpg");

\# Check if image is cached

if (!$image->isCached()) {

\# Cache image if not already cached

$image->cacheData();

}

\# Adjust the gamma

$image->adjustGamma(2.2, 2.2, 2.2);

\# Save the image to disk

$image->save($dataDir."adjust_gamma.jpg");

\# Display Status.

print "Adjust image gamma successfully!".PHP_EOL;

}

Download Running Code

Download Adjusting Brightness, Contrast and Gamma (Aspose.Imaging) from any of the below mentioned social coding sites:

• GitHub
• CodePlex