OpenCV Heatmap issue

import matplotlib.pyplot as plt
import numpy as np
import cv2

heatmap = np.array([
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99919313,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,1.00000000,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705],
    [0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705,0.99782705]
])

img = cv2.imread("/home/mfb/Development/DLwithPython/data/dogscats/mini/test/cats/cat.1543.jpg")
heatmap = cv2.resize(heatmap, (img.shape[1], img.shape[0]))
plt.matshow(heatmap)
plt.show()
heatmap = cv2.applyColorMap(np.uint8(255 * heatmap), cv2.COLORMAP_JET)
cv2.imshow("Heatmap", heatmap)
cv2.waitKey(0)