{"id":"image-channel-extractor","engine":"media","category":"image","name":"Farbkanal extrahieren","fields":[{"key":"file","label":"Datei auswählen","type":"file","accept":"image/png,image/jpeg,image/webp,image/gif,image/bmp","multiple":false,"required":true},{"key":"channel","label":"Kanal","type":"select","default":"0","options":[{"value":"0","label":"Rot"},{"value":"1","label":"Grün"},{"value":"2","label":"Blau"},{"value":"3","label":"Alpha"}]}],"sample":{}}