/**
* Make a mosaic that looks like the specified guide image using the
* source images found in the specified folder.
*
* @param string $pathToGuideImage The path to the guide image.
* @param array $pathsToSourceImagesFolders An array of the path(s) to the
* folder(s) that contain the sources images.
* @return string The path to the newly created mosaic image.
*/
public static function makeMosaic($pathToGuideImage, $pathsToSourceImagesFolders, $verboseOutput = false)
{
$guideImage = new GuideImage($pathToGuideImage);
$sourceImageFiles = self::listImageFilesInFolders($pathsToSourceImagesFolders);
$sourceImages = array();
$numSourceImageFiles = count($sourceImageFiles);
$numProcessedSourceImages = 0;
$progressMeter = new ProgressMeter();
foreach ($sourceImageFiles as $sourceImageFile) {
try {
$sourceImages[] = new SourceImage($sourceImageFile, 4 / 3, 120);
} catch (\Exception $e) {
if ($verboseOutput) {
echo sprintf('Skipping "%s": %s%s', $sourceImageFile, $e->getMessage(), PHP_EOL);
}
}
$numProcessedSourceImages += 1;
$progressMeter->showProgress('Loading source images (1/3)', $numProcessedSourceImages / $numSourceImageFiles);
}
// Create a mosaic from those slices/images.
$mosaic = new Mosaic($guideImage, $sourceImages);
// Generate a filename for the new mosaic image.
$mosaicFilename = 'Mosaic_' . microtime(true) . '.jpg';
$filePathToMosaic = dirname($pathToGuideImage) . '/' . $mosaicFilename;
// Steps D & E: (Lazily generate and) save the mosaic image.
$mosaic->saveAs($filePathToMosaic);
return $filePathToMosaic;
}
/**
* Assemble the final mosaic Image from the list of Matches.
*
* @param Match[] $matches
* @return Image
* @throws \Exception
*/
protected function assembleImageFromMatches($matches)
{
// Define how much bigger (than the guide image) to make the mosaic.
$multiplier = 2;
$imageResource = imagecreatetruecolor($this->guideImage->getWidth() * $multiplier, $this->guideImage->getHeight() * $multiplier);
$tempCounter = 0;
$progressMeter = new ProgressMeter();
$numMatches = count($matches);
foreach ($matches as $match) {
/* @var $match Match */
$guideImageSlice = $match->getSlice();
$imageToInsert = $match->getSourceImage();
$success = imagecopyresampled($imageResource, $imageToInsert->getImageResource(), $guideImageSlice->xOffsetInParent * $multiplier, $guideImageSlice->yOffsetInParent * $multiplier, 0, 0, $guideImageSlice->getWidth() * $multiplier, $guideImageSlice->getHeight() * $multiplier, $imageToInsert->getWidth(), $imageToInsert->getHeight());
// Stop if something went wrong.
if (!$success) {
throw new \Exception('Failed to insert a source image into the final mosaic.', 1435207513);
}
$progressMeter->showProgress('Assembling mosaic (3/3)', ++$tempCounter / $numMatches);
//$tempImage = new Image();
//$tempImage->setImageResource($imageResource);
//$tempImage->saveAsJpg('Step-' . ++$tempCounter . '.jpg');
}
$image = new Image();
$image->setImageResource($imageResource);
return $image;
}
