public function render()
{
//Example ImagickKernel::addUnityKernel
$matrix = [[-1, 0, -1], [0, 4, 0], [-1, 0, -1]];
$kernel = \ImagickKernel::fromMatrix($matrix);
$kernel->scale(1, \Imagick::NORMALIZE_KERNEL_VALUE);
$output = "Before adding unity kernel: <br/>";
$output .= renderKernelTable($kernel->getMatrix());
$kernel->addUnityKernel(0.5);
$output .= "After adding unity kernel: <br/>";
$output .= renderKernelTable($kernel->getMatrix());
$kernel->scale(1, \Imagick::NORMALIZE_KERNEL_VALUE);
$output .= "After renormalizing kernel: <br/>";
$output .= renderKernelTable($kernel->getMatrix());
return $output;
//Example end
}
public function render()
{
//Example ImagickKernel::separate
$matrix = [[-1, 0, -1], [0, 4, 0], [-1, 0, -1]];
$kernel = \ImagickKernel::fromMatrix($matrix);
$kernel->scale(4, \Imagick::NORMALIZE_KERNEL_VALUE);
$diamondKernel = \ImagickKernel::fromBuiltIn(\Imagick::KERNEL_DIAMOND, "2");
$kernel->addKernel($diamondKernel);
$kernelList = $kernel->separate();
$output = '';
$count = 0;
foreach ($kernelList as $kernel) {
$output .= "<br/>Kernel {$count}<br/>";
$output .= Display::renderKernelTable($kernel->getMatrix());
$count++;
}
return $output;
//Example end
}
function render()
{
//Example ImagickKernel::scale
$output = "";
$matrix = [[-1, 0, -1], [0, 4, 0], [-1, 0, -1]];
$kernel = \ImagickKernel::fromMatrix($matrix);
$kernelClone = clone $kernel;
$output .= "Start kernel<br/>";
$output .= renderKernelTable($kernel->getMatrix());
$output .= "Scaling with NORMALIZE_KERNEL_VALUE. The <br/>";
$kernel->scale(2, \Imagick::NORMALIZE_KERNEL_VALUE);
$output .= renderKernelTable($kernel->getMatrix());
$kernel = clone $kernelClone;
$output .= "Scaling by percent<br/>";
$kernel->scale(2, \Imagick::NORMALIZE_KERNEL_PERCENT);
$output .= renderKernelTable($kernel->getMatrix());
$matrix2 = [[-1, -1, 1], [-1, false, 1], [1, 1, 1]];
$kernel = \ImagickKernel::fromMatrix($matrix2);
$output .= "Scaling by correlate<br/>";
$kernel->scale(1, \Imagick::NORMALIZE_KERNEL_CORRELATE);
$output .= renderKernelTable($kernel->getMatrix());
return $output;
//Example end
}
function createFromMatrix()
{
$matrix = [[0.5, 0, 0.2], [0, 1, 0], [0.9, 0, false]];
$kernel = \ImagickKernel::fromMatrix($matrix);
return $kernel;
}
private function renderThicken()
{
//Example ImagickKernel::morphology
$canvas = $this->getCharacterOutline();
$leftEdgeKernel = \ImagickKernel::fromMatrix([[0, 1]], [1, 0]);
$rightEdgeKernel = \ImagickKernel::fromMatrix([[1, 0]], [0, 0]);
$leftEdgeKernel->addKernel($rightEdgeKernel);
$canvas->morphology(\Imagick::MORPHOLOGY_THICKEN, 3, $leftEdgeKernel);
header("Content-Type: image/png");
echo $canvas->getImageBlob();
//Example end
}
function filter($imagePath)
{
$imagick = new \Imagick(realpath($imagePath));
$matrix = [[-1, 0, -1], [0, 5, 0], [-1, 0, -1]];
$kernel = \ImagickKernel::fromMatrix($matrix);
$strength = 0.5;
$kernel->scale($strength, \Imagick::NORMALIZE_KERNEL_VALUE);
$kernel->addUnityKernel(1 - $strength);
$imagick->filter($kernel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
