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<?php |
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namespace Meema\MediaRecognition\Traits; |
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use Exception; |
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use Meema\MediaRecognition\Models\MediaRecognition; |
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trait CanRecognizeImages |
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{ |
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/** |
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* The input image as base64-encoded bytes. |
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* |
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* @var string|null |
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*/ |
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protected ?string $blob = null; |
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/** |
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* Set the base64 encoded image. |
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* |
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* @param string $blob |
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* |
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* @return $this |
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*/ |
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public function blob(string $blob) |
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{ |
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$this->blob = $blob; |
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return $this; |
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} |
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/** |
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* Sets the image to be analyzed. |
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* |
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* @return void |
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* @throws \Exception |
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*/ |
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protected function setImageSettings(): void |
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{ |
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if (is_string($this->blob)) { |
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$this->settings['Image'] = [ |
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'Bytes' => $this->blob, |
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]; |
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return; |
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} |
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$disk = $this->disk ?? config('media-recognition.disk'); |
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$bucketName = config("filesystems.disks.$disk.bucket"); |
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if (! $bucketName) { |
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throw new Exception('Please make sure to set a S3 bucket name.'); |
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} |
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$this->settings['Image'] = [ |
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'S3Object' => [ |
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'Bucket' => $bucketName, |
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'Name' => $this->path, |
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], |
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]; |
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} |
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/** |
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* Detects labels/objects in an image. |
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* |
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* @param int|null $mediaId |
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* @param int|null $minConfidence |
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* @param int|null $maxLabels |
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* @return \Aws\Result |
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* @throws \Exception |
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*/ |
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public function detectLabels($mediaId = null, $minConfidence = null, $maxLabels = null) |
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{ |
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$this->setImageSettings(); |
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$this->settings['MinConfidence'] = $minConfidence ?? config('media-recognition.min_confidence'); |
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if (is_int($maxLabels)) { |
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$this->settings['MaxLabels'] = $maxLabels; |
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} |
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$results = $this->client->detectLabels($this->settings); |
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if (! config('media-recognition.track_media_recognitions')) { |
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return $results; |
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} |
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if (is_null($mediaId)) { |
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throw new Exception('Please make sure to set a $mediaId.'); |
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} |
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MediaRecognition::updateOrCreate([ |
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'model_id' => $mediaId, |
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'model_type' => config('media-converter.media_model'), |
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], ['labels' => $results->toArray()]); |
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return $results; |
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} |
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/** |
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* Detects faces in an image & analyzes them. |
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* |
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* @param int|null $mediaId |
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* @param array $attributes |
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* @return \Aws\Result |
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* @throws \Exception |
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*/ |
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public function detectFaces($mediaId = null, $attributes = ['DEFAULT']) |
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{ |
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$this->setImageSettings(); |
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$this->settings['Attributes'] = $attributes; |
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$results = $this->client->detectFaces($this->settings); |
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$this->updateOrCreate('faces', $mediaId, $results); |
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return $results; |
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} |
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/** |
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* Detects moderation labels in an image. |
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* This can be useful for children-friendly images or NSFW images. |
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* |
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* @param int|null $mediaId |
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* @param int|null $minConfidence |
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* @return \Aws\Result |
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* @throws \Exception |
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*/ |
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public function detectModeration($mediaId = null, $minConfidence = null) |
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{ |
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$this->setImageSettings(); |
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$this->settings['MinConfidence'] = $minConfidence ?? config('media-recognition.min_confidence'); |
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$results = $this->client->detectModerationLabels($this->settings); |
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$this->updateOrCreate('moderation', $mediaId, $results); |
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return $results; |
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} |
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/** |
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* Detects text in an image (OCR). |
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* |
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* @param int|null $mediaId |
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* @param int|null $minConfidence |
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* @return \Aws\Result |
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* @throws \Exception |
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*/ |
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public function detectText($mediaId = null, $minConfidence = null) |
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{ |
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$this->setImageSettings(); |
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$results = $this->client->detectText($this->settings); |
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$this->updateOrCreate('ocr', $mediaId, $results); |
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return $results; |
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} |
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} |
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meemalabs /
laravel-media-recognition
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