Python實(shí)現(xiàn)批量修改圖片格式和大小的方法【opencv庫(kù)與PIL庫(kù)】

2020-01-04 13:56:58

字體：大中小

供稿：網(wǎng)友

本文實(shí)例講述了Python實(shí)現(xiàn)批量修改圖片格式和大小的方法。分享給大家供大家參考，具體如下：

第一種方法用到opencv庫(kù)

import osimport timeimport cv2def alter(path,object):  result = []  s = os.listdir(path)  count = 1  for i in s:    document = os.path.join(path,i)    img = cv2.imread(document)    img = cv2.resize(img, (20,20))    listStr = [str(int(time.time())), str(count)]    fileName = ''.join(listStr)    cv2.imwrite(object+os.sep+'%s.jpg' % fileName, img)    count = count + 1alter('C://imgDemo','C://imgDemo1')

第二種方法用到PIL庫(kù)

import osimport timefrom PIL import Imagedef alter(path,object):  s = os.listdir(path)  count = 1  for i in s:    document = os.path.join(path,i)    img = Image.open(document)    out = img.resize((20,20))    listStr = [str(int(time.time())), str(count)]    fileName = ''.join(listStr)    out.save(object+os.sep+'%s.jpg' % fileName)    count = count + 1alter('C://imgDemo','C://imgDemo1')

運(yùn)行上述代碼可得到C:/imgDemo目錄下對(duì)應(yīng)批量生成的20*20大小的圖片。

運(yùn)行效果如下：

Python,批量,修改,圖片格式,opencv,PIL