OpenCV-Python系列·第五集：图像扩大或缩小

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# -*- coding: utf-8 -*-
"""
Created on Fri Aug 24 16:29:37 2018

@author: Miracle
"""
'''
若扩大图像，请使用INTER_LINEAR（速度快）或INTER_CUBIC（效果佳、速度慢）
若缩小图像，请使用INTER_AREA
'''

import cv2

image = cv2.imread('../data/lena.jpg')
img_linear = cv2.resize(image,None,fx=1.5,fy=1.5,
                        interpolation=cv2.INTER_LINEAR)
cv2.imshow('Inter_Linear scale',img_linear)
img_cubic = cv2.resize(image,None,fx=1.5,fy=1.5,
                        interpolation=cv2.INTER_CUBIC)
cv2.imshow('Inter_Cubic scale',img_cubic)
img_area = cv2.resize(image,(300,300),
                        interpolation=cv2.INTER_AREA)
cv2.imshow('Inter_Area scale',img_area)
cv2.waitKey()