python中有较方便的包，可以直接裁剪图片，将一张大图裁剪成多张小图
# This is a sample Python script.
import glob
# Press Shift+F10 to execute it or replace it with your code.
# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.
import math, shutil
import os.path
import cv2
from PILimport Image
def cut_panorama(name, order):
img = cv2.imread(name)
print(type(img.shape))
# 将该图片分成4行8列
x_cut = img.shape[0] /4 # *0.72
y_cut = img.shape[1] /8
# 输出当前像素
print(x_cut)
print(y_cut)
n =0
path ='C:/Users/xiekaixuan/PycharmProjects/pythonProject/output/'
for iin range(4):
for jin range(8):
xs =int(i * x_cut)
xe =int((i +1) * x_cut)
ys =int(j * y_cut)
ye =int((j +1) * y_cut)
cropped = img[xs:xe, ys:ye]# 裁剪坐标为[y0:y1, x0:x1]
print('n转换前：', n)
# 前方高能，序号转换
if 0 <= n %8 <4:
m = n +4
else:
m = n -4
print('n转换后：', m)
# 如果序号不到10，要补足两位
num ='0' if m <10 else ''
mt = math.pow(10, 5 -len(str(order)))
begin_num =str(int(mt))[1:]
filename = begin_num +str(order) +'-pano-tex-r0-' + num +str(m) +'.jpg'
print('fileName:', filename)
cv2.imwrite(os.path.join(path, filename), cropped)
n +=1
print(f'Hi, finished')# Press Ctrl+F8 to toggle the breakpoint.
# 更改当前文件夹内所有jpg的分辨率
def convertjpg(jpgfile, k):
img = Image.open(jpgfile)
resolution =int(math.pow(2, k +7))# 当前分辨率
new_img = img.resize((resolution, resolution), Image.ANTIALIAS)
new_img.save(os.path.join("output/r" +str(k), os.path.basename(jpgfile)))
# number = os.getcwd()
# cn = len(os.listdir(number))
# print('*****************当前文件夹目录下文件数量：', cn)
# 图片重命名
sonFolder = jpgfile.split('\\')
newOrder =int(sonFolder[1].split('-')[0]) //100
dstFileFront = sonFolder[0] +'\\r' +str(k) +'\\'
newFolder(dstFileFront +str(newOrder))
dstFileMiddle =str(newOrder) +'\\' + sonFolder[1].split('r')[0] +'r' +str(k) +'-'
dstFileBack = jpgfile.split('-')[4]
os.rename(sonFolder[0] +'\\r' +str(k) +'\\' + sonFolder[1], dstFileFront + dstFileMiddle + dstFileBack)
def newFolder(filepath):
folder = os.path.exists(filepath)
if not folder:
os.makedirs(filepath)
print(filepath, " has been created!")
# def movePics():
if __name__ =='__main__':
# step1: 将每个大图切割成32个小图，并按照统一格式命名存放
# order = 0
# for pa_pic in glob.glob("panorama/*.jpg"):
# cut_panorama(pa_pic, order)
# order += 1
# step2: 新建4个文件夹，r0,r1,r2,r3;分别存放不同分辨率的图片
for jpgfilein glob.glob("output/*.jpg"):
for iin range(4):
newFolder('C:/Users/xiekaixuan/PycharmProjects/pythonProject/output/r' +str(i))
convertjpg(jpgfile, i)
# step3: 将r文件夹中的各图片分文件夹存放，每m个图片存放一个文件夹
# number = os.getcwd()
# cn = len(os.listdir(number))