Adjusting Brightness, Contrast and Gamma in PHP
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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;
}
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