A KNN-based classification algorithm for growth stages of Haematococcus pluvialis

The growth of Haematococcus pluvialis is divided into the cell proliferation stage and the astaxanthin accumulation stage, and the culture environment requirements of the two stages are quite different. This paper proposes a classification algorithm based on KNN, which can realize the stage classification of the sample algae liquid through the microscopic image of Haematococcus pluvialis, which can better guide the experiment and improve the efficiency of the experiment. A series of image processing and feature extraction methods are also proposed, which can extract the cell area in the RGB microscopic image, and extract the corresponding features from the image for KNN classification. Experimental verification shows that this algorithm maintains a good effect and high stability under a large number of sample tests, and has certain application value.