python 使用kmeans聚类从图像中检测主色

Posted 2021-05-08

import cv2
from sklearn.cluster import KMeans

img = cv2.imread("rick_morty.png")

img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)

#img.shape[0] = 1080 & img.shape[1] = 1920
img = img.reshape((img.shape[0] * img.shape[1], 3))

#using k-means to cluster pixels
kmeans = KMeans(n_clusters = 5)
kmeans.fit(img)

#cluster centers are our dominated colors.
colors = kmeans.cluster_centers_

#label for the array
labels = kmeans.labels_

print(colors.astype(int))