python使用OpenCV批量裁剪图片

图片分块/裁剪代码

import cv2
import os

# Returns a list of all folders with participant numbers
# img_path = glob.glob("F:/test/*jpg")
# for path in img_path:
#     img  = cv2.imread(path)
#     cv2.imshow('img',img)
#     cv2.waitKey(1000)

# 循环处理列表中的所有图片
path = os.path.expanduser("F:split\test\bad/")
for f in os.listdir(path):
    # print(f.strip()[0:-4])

    path = "F:split\test\bad/" + f.strip()
    print(path)
    img = cv2.imread(path)
    # cv2.imshow('img', img)
    # shap[0] height,shape[1] width
    hei = img.shape[0]
    wid = img.shape[1]

    # 裁剪后图片的区域个数
    num = 2
    for i in range(0, num):
        print(i)
        # 调整裁剪区域像素位置
        hei_0 = 0
        hei_1 = int(hei)
        wid_0 = int(i * wid / num)
        wid_1 = int((i + 1) * wid / num)-40
        # 图片分块裁剪操作
        roiImg = img[hei_0:hei_1, wid_0:wid_1]
        # cv2.imshow("[ROIImg]", roiImg)
        # 图片保存路径
        path = "F:out\test\bad/" + f.strip()[0:-4] + "_" + str(i) + ".jpg"
        cv2.imwrite(path, roiImg) 

主要采用了python的切片操作。