Classification is a machine learning technique that determines which objects are in the picture or the video and it specifies the location of those objects. It predicts the class of data points that are given. Classes are sometimes referred to as labels, categories or targets. Machine learning models are trained with the intent of finding what objects are present in the image. In Machine Learning, the most common application is filtering emails into spam and non-spam categories. Classification is a type of pattern recognition, the classification algorithms that are applied to the training data sets look for the same pattern in the future data sets.