The Imagick::setImageDepth() function is an inbuilt function in PHP which is used to set the depth of a particular image.
Syntax:
bool Imagick::setImageDepth( $depth )
Parameters: This function accepts a single parameter $depth which is an integer value and used to set the depth of image.
Return Value: This function returns true on success.
Below program illustrates the Imagick::setImageDepth() function in PHP:
Original Image:
Program 1:
php
<?php // require_once('path/vendor/autoload.php'); // Create an Imagick Object$image = new Imagick( // Use getImageDepth function to find the depth // of image$res= $image->getImageDepth(); // Display the depth of imageecho "Previous Depth" . $res; $image->setImageDepth(20);$res = $image->getImageDepth();echo "</br>After Set Depth" . $res; ?> |
Output:
Previous Depth 8 After Set Depth 20
Original Image:
Program 2:
php
<?php $string = "Computer Science portal for Geeks!"; // creating new image of above String // and add color and background $im = new Imagick(); $draw = new ImagickDraw(); // Fill the color in image $draw->setFillColor(new ImagickPixel('green')); // Set the text font size $draw->setFontSize(50); $matrix = $im->queryFontMetrics($draw, $string); $draw->annotation(0, 40, $string); $im->newImage($matrix['textWidth'], $matrix['textHeight'], new ImagickPixel('white')); // Draw the image $im->drawImage($draw); $im->setImageFormat('jpeg');$dpth = $im->getImageDepth(); // Display the depth of imageprint("Previous Depth = " . $dpth); $im->setImageDepth(20);$dpthnew = $im->getImageDepth(); // Display the depth of imageprint("</br>Depth After Set = " . $dpthnew);?> |
Output:
Previous Depth = 8 Depth After Set = 20
Reference: http://php.net/manual/en/imagick.setimagedepth.php
