通过保留原始图像大小来调整图像中的ROI

我将ROI调整一半,然后附加到图像上,有关详细信息,请参见代码:

import numpy as np
import cv2

image = cv2.imread("1.png")

print(image.shape)
h = image.shape[0]
w = image.shape[1]

center_x = int(w/2)
center_y = int(h/2)

#get the roi, suppose the roi is in the center of the image
roi = image[center_y-50:center_y+50,center_x-140:center_x+140,:].copy() 
roi_h = roi.shape[0]
roi_w = roi.shape[1]

resize_roi = cv2.resize(roi,(int(roi_w/2),int(roi_h/2)))
print(resize_roi.shape)

#delete the old roi
image[center_y-50:center_y+50,center_x-140:center_x+140,:] = 255

#append the resize_roi
image[center_y-int(50/2):center_y+int(50/2),center_x-int(140/2):center_x+int(140/2),:] = resize_roi

cv2.imshow("Image", image)
cv2.imshow("roi", roi)
cv2.imshow("resize_roi", resize_roi)
cv2.waitKey(0)

投资回报率

调整ROI

具有调整ROI大小的图像