在google colab中调整大小后如何保存图像？

【问题标题】：How to save an image after resizing it in google colab?在google colab中调整大小后如何保存图像？
【发布时间】：2021-08-15 04:12:59
【问题描述】：

image = cv2.imread("/content/obj_measurement.jpg")

scale_percent = 12.5 # percent of original size
width = int(image.shape[1] * scale_percent / 100)
height = int(image.shape[0] * scale_percent / 100)
dim = (width, height)

resized = cv2.resize(image, dim, interpolation = cv2.INTER_AREA)

现在我想下载这个调整大小的图像。我该怎么做？

【问题讨论】：

标签： python opencv computer-vision google-colaboratory

【解决方案1】：

您可以简单地调用cv2.imwrite() 方法：

import cv2

image = cv2.imread("/content/obj_measurement.jpg")
scale_percent = 12.5
width = int(image.shape[1] * scale_percent / 100)
height = int(image.shape[0] * scale_percent / 100)

dim = (width, height)

resized = cv2.resize(image, dim, interpolation = cv2.INTER_AREA)
cv2.imwrite("/content/obj_measurement_new.jpg", resized)

我建议解压缩图像的尺寸而不是索引：

import cv2

image = cv2.imread("/content/obj_measurement.jpg")
scale_percent = 12.5

h, w, _ = image.shape
dim = h * scale_percent / 100, w * scale_percent / 100

resized = cv2.resize(image, dim, interpolation=cv2.INTER_AREA)
cv2.imwrite("/content/obj_measurement_new.jpg", resized)

【讨论】：