Python使用5行代码批量做小姐姐的素描图
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2022-03-15 23:37:00
目录我给大家带来的是 50行代码,生成一张素描图。让自己也是一个素描“大师”。那废话不多说,我们直接先来看看效果吧。上图的右边就是我们的效果,那具体有哪些步骤呢?1. 流程分析对于上面的流程来说是非常...
我给大家带来的是 50行代码,生成一张素描图。让自己也是一个素描“大师”。那废话不多说,我们直接先来看看效果吧。
上图的右边就是我们的效果,那具体有哪些步骤呢?
1. 流程分析
对于上面的流程来说是非常简单的,接下来我们来看看具体的实现。
2. 具体实现
安装所需要的库:
pip install opencv-python
导入所需要的库:
import cv2
编写主体代码也是非常的简单的,代码如下:
import cv2 src = 'images/image_1.jpg' image_rgb = cv2.imread(src) image_gray = cv2.cvtcolor(image_rgb, cv2.color_bgr2gray) image_blur = cv2.gaussianblur(image_gray, ksize=(21, 21), sigmax=0, sigmay=0) image_blend = cv2.divide(image_gray, image_blur, scale=255) cv2.imwrite('result.jpg', image_blend)
那上面的代码其实并不难,那接下来为了让小伙伴们能更好的理解,我编写了如下代码:
""" project = 'code', file_name = 'study.py', author = 'ai悦创' time = '2020/5/19 8:35', product_name = pycharm, 公众号:ai悦创 code is far away from bugs with the god animal protecting i love animals. they taste delicious. """ import cv2 # 原图路径 src = 'images/image_1.jpg' # 读取图片 image_rgb = cv2.imread(src) # cv2.imshow('rgb', image_rgb) # 原图 # cv2.waitkey(0) # exit() image_gray = cv2.cvtcolor(image_rgb, cv2.color_bgr2gray) # cv2.imshow('gray', image_gray) # 灰度图 # cv2.waitkey(0) # exit() image_bulr = cv2.gaussianblur(image_gray, ksize=(21, 21), sigmax=0, sigmay=0) cv2.imshow('image_blur', image_bulr) # 高斯虚化 cv2.waitkey(0) exit() # divide: 提取两张差别较大的线条和内容 image_blend = cv2.divide(image_gray, image_bulr, scale=255) # cv2.imshow('image_blend', image_blend) # 素描 cv2.waitkey(0) # cv2.imwrite('result1.jpg', image_blend)
那上面的代码,我们是在原有的基础上添加了,一些实时展示的代码,来方便同学们理解。
其实有同学会问,我用软件不就可以直接生成素描图吗?
那程序的好处是什么?
程序的好处就是如果你的图片量多的话,这个时候使用程序批量生成也是非常方便高效的。
这样我们的就完成,把小姐姐的图片变成了素描,skr~。
3. 百度图片爬虫+生成素描图
不过,这还不是我们的海量图片,为了达到海量这个词呢,我写了一个百度图片爬虫,不过本文不是教如何写爬虫代码的,这里我就直接放出爬虫代码,符和软件工程规范:
# crawler.spider.py import re import os import time import collections from collections import namedtuple import requests from concurrent import futures from tqdm import tqdm from enum import enum base_url = 'https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&queryword={keyword}&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=&hd=&latest=©right=&word={keyword}&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&expermode=&force=&pn={page}&rn=30&gsm=&1568638554041=' headers = { 'referer': 'http://image.baidu.com/search/index?tn=baiduimage&ipn=r&ct=201326592&cl=2&lm=-1&st=-1&fr=&sf=1&fmq=1567133149621_r&pv=&ic=0&nc=1&z=0&hd=0&latest=0©right=0&se=1&showtab=0&fb=0&width=&height=&face=0&istype=2&ie=utf-8&sid=&word=%e5%a3%81%e7%ba%b8', 'user-agent': 'mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/75.0.3770.100 safari/537.36', 'x-requested-with': 'xmlhttprequest', } class baiduspider: def __init__(self, max_works, images_type): self.max_works = max_works self.httpstatus = enum('status', ['ok', 'not_found', 'error']) self.result = namedtuple('result', 'status data') self.session = requests.session() self.img_type = images_type self.img_num = none self.headers = headers self.index = 1 def get_img(self, img_url): res = self.session.get(img_url) if res.status_code != 200: res.raise_for_status() return res.content def download_one(self, img_url, verbose): try: image = self.get_img(img_url) except requests.exceptions.httperror as e: res = e.response if res.status_code == 404: status = self.httpstatus.not_found msg = 'not_found' else: raise else: self.save_img(self.img_type, image) status = self.httpstatus.ok msg = 'ok' if verbose: print(img_url, msg) return self.result(status, msg) def get_img_url(self): urls = [base_url.format(keyword=self.img_type, page=page) for page in self.img_num] for url in urls: res = self.session.get(url, headers=self.headers) if res.status_code == 200: img_list = re.findall(r'"thumburl":"(.*?)"', res.text) # 返回出图片地址,配合其他函数运行 yield {img_url for img_url in img_list} elif res.status_code == 404: print('-----访问失败,找不到资源-----') yield none elif res.status_code == 403: print('*****访问失败,服务器拒绝访问*****') yield none else: print('>>> 网络连接失败 <<<') yield none def download_many(self, img_url_set, verbose=false): if img_url_set: counter = collections.counter() with futures.threadpoolexecutor(self.max_works) as executor: to_do_map = {} for img in img_url_set: future = executor.submit(self.download_one, img, verbose) to_do_map[future] = img done_iter = futures.as_completed(to_do_map) if not verbose: done_iter = tqdm(done_iter, total=len(img_url_set)) for future in done_iter: try: res = future.result() except requests.exceptions.httperror as e: error_msg = 'http error {res.status_code} - {res.reason}' error_msg = error_msg.format(res=e.response) except requests.exceptions.connectionerror: error_msg = 'connectionerror error' else: error_msg = '' status = res.status if error_msg: status = self.httpstatus.error counter[status] += 1 if verbose and error_msg: img = to_do_map[future] print('***error for {} : {}'.format(img, error_msg)) return counter else: pass def save_img(self, img_type, image): with open('{}/{}.jpg'.format(img_type, self.index), 'wb') as f: f.write(image) self.index += 1 def what_want2download(self): # self.img_type = input('请输入你想下载的图片类型,什么都可以哦~ >>> ') try: os.mkdir(self.img_type) except fileexistserror: pass img_num = input('请输入要下载的数量(1位数代表30张,列如输入1就是下载30张,2就是60张):>>> ') while true: if img_num.isdigit(): img_num = int(img_num) * 30 self.img_num = range(30, img_num + 1, 30) break else: img_num = input('输入错误,请重新输入要下载的数量>>> ') def main(self): # 获取图片类型和下载的数量 total_counter = {} self.what_want2download() for img_url_set in self.get_img_url(): if img_url_set: counter = self.download_many(img_url_set, false) for key in counter: if key in total_counter: total_counter[key] += counter[key] else: total_counter[key] = counter[key] else: # 可以为其添加报错功能 pass time.sleep(.5) return total_counter if __name__ == '__main__': max_works = 20 bd_spider = baiduspider(max_works) print(bd_spider.main())
# sketch_the_generated_code.py import cv2 def drawing(src, id=none): image_rgb = cv2.imread(src) image_gray = cv2.cvtcolor(image_rgb, cv2.color_bgr2gray) image_blur = cv2.gaussianblur(image_gray, ksize=(21, 21), sigmax=0, sigmay=0) image_blend = cv2.divide(image_gray, image_blur, scale=255) cv2.imwrite(f'drawing_images/result-{id}.jpg', image_blend)
# image_list.image_list_path.py import os from natsort import natsorted images_list = [] def image_list(path): global images_list for root, dirs, files in os.walk(path): # 按文件名排序 # files.sort() files = natsorted(files) # 遍历所有文件 for file in files: # 如果后缀名为 .jpg if os.path.splitext(file)[1] == '.jpg': # 拼接成完整路径 # print(file) filepath = os.path.join(root, file) print(filepath) # 添加到数组 images_list.append(filepath) return images_list
# main.py import time from sketch_the_generated_code import drawing from crawler.spider import baiduspider from image_list.image_list_path import image_list import os max_words = 20 if __name__ == '__main__': # now_path = os.getcwd() # img_type = 'ai' img_type = input('请输入你想下载的图片类型,什么都可以哦~ >>> ') bd_spider = baiduspider(max_words, img_type) print(bd_spider.main()) time.sleep(10) # 这里设置睡眠时间,让有足够的时间去添加,这样读取就,去掉或者太短会报错,所以 for index, path in enumerate(image_list(img_type)): drawing(src = path, id = index)
所以最终的目录结构如下所示:
c:. │ main.py │ sketch_the_generated_code.py │ ├─crawler │ │ spider.py │ │ │ └─__pycache__ │ spider.cpython-37.pyc │ ├─drawing │ │ result.jpg │ │ result1.jpg │ │ sketch_the_generated_code.py │ │ study.py │ │ │ ├─images │ │ image_1.jpg │ │ │ └─__pycache__ │ sketch_the_generated_code.cpython-37.pyc │ ├─drawing_images ├─image_list │ │ image_list_path.py │ │ │ └─__pycache__ │ image_list_path.cpython-37.pyc │ └─__pycache__ sketch_the_generated_code.cpython-37.pyc
至此,全部代码已经完成。
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