Exception in thread "main" java.lang.NullPointerException
at com.lucbir.utils.ImageUtil.calculateSimilarity(ImageUtil.java:79)
at com.lucbir.utils.ImageUtil.calculateSimilarity(ImageUtil.java:74)
at com.lucbir.features.HSVColorHistogram.calculateSimilarity(HSVColorHistogram.java:72)
at com.lucbir.search.LucbirSearcher.search(LucbirSearcher.java:106)
at com.lucbir.search.LucbirSearcher.searchWithListResult(LucbirSearcher.java:81)
at com.lucbir.demo.LucbirSearcherDemo.main(LucbirSearcherDemo.java:17)