Use the median cut algorithm to cluster similar colors.
| public static getPalette ( mixed $sourceImage, integer $colorCount = 10, integer $quality = 10, array $area = null ) : array | ||
| $sourceImage | mixed | Path/URL to the image, GD resource, Imagick instance, or image as binary string |
| $colorCount | integer | It determines the size of the palette; the number of colors returned. |
| $quality | integer | 1 is the highest quality. |
| $area | array | |
| 리턴 | array | |
/**
* Gets color palette for image
*
* @param AssetFileModel|string $image
* @param $colorCount
* @param $quality
* @param $colorValue
* @return array
* @throws Exception
*/
public function getColorPalette($image, $colorCount, $quality, $colorValue)
{
$pathsModel = new Imager_ImagePathsModel($image);
if (!IOHelper::getRealPath($pathsModel->sourcePath)) {
throw new Exception(Craft::t('Source folder “{sourcePath}” does not exist', array('sourcePath' => $pathsModel->sourcePath)));
}
if (!IOHelper::fileExists($pathsModel->sourcePath . $pathsModel->sourceFilename)) {
throw new Exception(Craft::t('Requested image “{fileName}” does not exist in path “{sourcePath}”', array('fileName' => $pathsModel->sourceFilename, 'sourcePath' => $pathsModel->sourcePath)));
}
$palette = ColorThief::getPalette($pathsModel->sourcePath . $pathsModel->sourceFilename, $colorCount, $quality);
return $colorValue == 'hex' ? $this->_paletteToHex($palette) : $palette;
}
/**
* @see Issue #11
* @expectedException RuntimeException
* @expectedExceptionMessage blank or transparent image
* @expectedExceptionCode 1
*/
public function testGetPaletteWithBlankImage()
{
ColorThief::getPalette($this->getBlankImage());
}
/**
* Get the dominant colors of this Image
* @param Int $colorCount Count of colors to return
* @return Array
*/
public function dominantColorPalette($colorCount = 5)
{
$c = ColorThief::getPalette($sourceImage = $this->owner->getFullPath(), $colorCount = $colorCount, $quality = Config::inst()->get(get_called_class(), 'quality'));
return array_map(array(get_called_class(), 'array_to_hex'), $c);
}
public function actionUpload()
{
$file = UploadedFile::getInstanceByName('file');
if ($file) {
$destName = time() . '_' . $file->name;
$targetFile = \Yii::getAlias('@webroot') . DIRECTORY_SEPARATOR . '_lib' . DIRECTORY_SEPARATOR . $destName;
$file->saveAs($targetFile);
$filePath = \Yii::getAlias('@app/workspace/elements') . DIRECTORY_SEPARATOR . 'asset' . '.json';
$elementDefinition = Json::decode(file_get_contents($filePath), false);
// Add core fields.
$elementDefinition->fields[] = Json::decode('{ "label": "UUID", "key": "uuid", "type": "textInput", "visibleInGrid": true, "rules": [["string", {"max": 128}]], "options": {"disabled":true}}', false);
$elementDefinition->fields[] = Json::decode('{ "label": "Path", "key": "path", "type": "textInput", "visibleInGrid": true, "rules": [["string", {"max": 128}]]}', false);
$elementDefinition->fields[] = Json::decode('{ "label": "Slug", "key": "slug", "type": "textInput", "visibleInGrid": true, "rules": [["string", {"max": 128}]]}', false);
$elementDefinition->fields[] = Json::decode('{ "label": "State", "key": "state", "type": "dropDownList", "visibleInGrid": true, "rules": [["required"], ["string", {"max": 128}]], "options": {"prompt":"Please set state"}, "items": {"0":"Offline", "1":"Draft", "2":"Online", "3":"Archived"}}', false);
$fields = [];
foreach ($elementDefinition->fields as $field) {
array_push($fields, $field->key);
}
$model = new CrelishDynamicJsonModel($fields);
$model->identifier = 'asset';
$model->systitle = $destName;
$model->title = $destName;
$model->src = \Yii::getAlias('@web') . '/' . '_lib' . '/' . $destName;
$model->mime = $file->type;
$model->size = $file->size;
$model->state = 2;
$model->save();
try {
$domColor = ColorThief::getColor($targetFile, 20);
$palColor = ColorThief::getPalette(\Yii::getAlias('@webroot') . DIRECTORY_SEPARATOR . '_lib' . DIRECTORY_SEPARATOR . $destName);
$model->colormain_rgb = Json::encode($domColor);
$model->colormain_hex = '#' . sprintf('%02x', $domColor[0]) . sprintf('%02x', $domColor[1]) . sprintf('%02x', $domColor[2]);
$model->save();
$model->colorpalette = Json::encode($palColor);
$model->save();
} catch (Exception $e) {
\Yii::$app->session->setFlash('secondary', 'Color theft could not be completed. (Image too large?)');
}
}
return false;
}
/**
* @see Issue #11
* @expectedException \RuntimeException
* @expectedExceptionMessage blank or transparent image
* @expectedExceptionCode 1
*/
public function testGetPaletteWithBlankImage()
{
ColorThief::getPalette(__DIR__ . "/images/blank.png");
}
