{"id":"image-channel-extractor","engine":"media","category":"image","name":"Kleurkanaal extraheren","fields":[{"key":"file","label":"Bestand kiezen","type":"file","accept":"image/png,image/jpeg,image/webp,image/gif,image/bmp","multiple":false,"required":true},{"key":"channel","label":"Kanaal","type":"select","default":"0","options":[{"value":"0","label":"Rood"},{"value":"1","label":"Groen"},{"value":"2","label":"Blauw"},{"value":"3","label":"Alfa"}]}],"sample":{}}