Question

我尝试在阈值设置后使用cv2.imwrite保存图像，但是它不保存图像。下面是我正在使用的代码：

import necessary packages

ap = argparse.ArgumentParser()

ap.add_argument("-i", "--image", required = True,
    help = "Path to the image to be thresholded")

ap.add_argument("-t", "--threshold", type = int, default = 128,
    help = "Threshold value")

args = vars(ap.parse_args())

image = cv2.imread(args["image"])

gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

methods = [("THRESH_BINARY", cv2.THRESH_BINARY)]

for (threshName, threshMethod) in methods:

    (T, thresh) = cv2.threshold(gray, args["threshold"], 255, threshMethod)

    cv2.imshow(threshName, thresh)

    cv2.waitKey(0)

cv2.imwrite(gray, args["image"])

Answer 1

我认为您想保存脱粒图像。 cv2.imwrite(args["image"], thresh)应该在for循环内。

Answer 2

在docs中，函数标头为：

cv2.imwrite（文件名，图像）

将其向后移动，只需更改

cv2.imwrite(gray, args["image"])

到

cv2.imwrite(args["image"], gray)

使用imwrite阈值化后如何在opencv中保存图像

2 个答案: