如何使用 OpenCV 和 numpy 从 Drive 目录读取和显示图像？

Question

我正在尝试从驱动器上的目录中读取图像，为此我使用 OpenCV，我将图像转换为 32 位浮点数的 numpy 数组，然后显示它，我遇到的问题是图像不显示。这些图像对应于胸部 X 光片，我在 Google Colab 工作。

import matplotlib.pyplot as plt
import cv2
from skimage import transform
import numpy as np

img_r = cv2.imread('/content/drive/MyDrive/images/T-NORMAL- (3).jpeg')

img1 = np.array(img_r).astype('float32')/255
img2 = transform.resize(img1, (150, 150, 3))

plt.imshow(img2)

This is the result obtained from the first code. As seen, it is as if the image was not being well-read.

以为是我没有正确访问目录，所以使用了os.listdir方法，如下代码所示，反正图片没有显示出来。

import matplotlib.pyplot as plt
import os
import numpy as np
import cv2
from skimage import transform


items = os.listdir('/content/drive/MyDrive/imagenes')
print (items)

for each_image in items:
  if each_image.endswith(".jpeg"):
   print (each_image)
   full_path = "/content/drive/MyDrive/imagenes" + each_image
   print (full_path)
   image = cv2.imread(full_path)
   img1 = np.array(image).astype('float32')/255
   img2 = transform.resize(img1, (150, 150, 3))

plt.imshow(img2)

This is what is displayed as a result of the second code.

我希望有人可以帮助我。 提前致谢。

Answer 1

让我知道这是否有效

import cv2

img_r = cv2.imread('/content/drive/MyDrive/images/T-NORMAL- (3).jpeg')

#to resize image
reimg_r = cv2.resize(img_r,(150,150))

cv2.imshow('xrays',reimg_r)
cv2.waitKey(0)
cv2.destroyAllWindows()