python 批量处理图像尺寸.zip

import os from PIL import Image, ImageFont class ImageMerger(): def __init__(self): self.font = ImageFont.truetype("font\\simhei.ttf", 18) def merge(self, src_img_path, des_width, des_height=None): if os.path.exists(src_img_path) is False: print("图片不存在", src_img_path) return src_im = Image.open(src_img_path) orate = src_im.width / src_im.height; width = des_width; height = des_height; if des_height is None: height = width / orate; height = int(height) # print(width, height) if src_im.width > src_im.height: re_width = width re_height = re_width / orate; re_width = int(re_width) re_height = int(re_height) src_im = src_im.resize((re_width, re_height), Image.ANTIALIAS) else: re_height = height; re_width = orate * re_height re_width = int(re_width) src_im = src_im.resize((re_width, re_height), Image.ANTIALIAS) # print("调整之后", src_im.width, src_im.height) des_im = Image.new('RGB', (width, height), 0xffffff) box = self.get_box_pos(width, height, src_im.width, src_im.height) # print("粘贴区域",box) des_im.paste(src_im, box) des_im.save(src_img_path) def get_box_pos(self, des_width, des_height, src_width, src_height): del_width = des_width - src_width del_height = des_height - src_height; x1 = del_width / 2; y1 = del_height / 2 x2 = x1 + src_width; y2 = y1 + src_height; x1 = int(x1) y1 = int(y1) x2 = int(x2) y2 = int(y2) return (x1, y1, x2, y2)