Generally speaking, the screen saver can protect the screen, because the static screen image for a long time will make the electron beam continue to hit the fixed position of the screen, which will damage the phosphor of the CRT display for a long time; and the beautiful screen saver can protect the eyes, because Long-term boring screen content will cause eye fatigue, and long-term damage to the brains of apes. Combining popular technologies such as crawlers, Baidu search pictures, opencv, etc., this paper has created a screen saver program that displays beautiful pictures. This program has the following advantages:
1. Automatically display, free your hands, because your hands still need to read the code;
2. Every time you start it, it will be displayed randomly, bringing you a different visual experience;
3. Full screen display, Esc to exit, freely switch between reality and fantasy;
No time to explain, drive now! ! !
import os
import cv2
import threading
import time
import requests
import json
import random
from win32api import GetSystemMetrics
WAIT = 200
def fill_blank(img_in, img_w, img_h, pic_w, pic_h):
resize_img1 = cv2.resize(img_in, (img_w, img_h))
if img_w % 2 != 0 and img_h % 2 == 0:
top, bottom, left, right = (pic_h - img_h) / 2, (pic_h - img_h) / 2, (pic_w - img_w) / 2 + 1, (pic_w - img_w) / 2
elif img_h % 2 != 0 and img_w % 2 == 0:
top, bottom, left, right = (pic_h - img_h) / 2 + 1, (pic_h - img_h) / 2, (pic_w - img_w) / 2, (pic_w - img_w) / 2
elif img_h % 2 == 0 and img_w % 2 == 0:
top, bottom, left, right = (pic_h - img_h) / 2, (pic_h - img_h) / 2, (pic_w - img_w) / 2, (pic_w - img_w) / 2
else:
top, bottom, left, right = (pic_h - img_h) / 2 + 1, (pic_h - img_h) / 2, (pic_w - img_w) / 2 + 1, (pic_w - img_w) / 2
return cv2.copyMakeBorder(resize_img1, int(top), int(bottom), int(left), int(right), cv2.BORDER_CONSTANT, value=[0, 0, 0])
def resize_img(img, pic_w, pic_h):
h, w = img. shape[0], img. shape[1]
if h == w:
longest = h
scale = longest / float(pic_h)
img_h, img_w = int(h / scale), int(w / scale)
return fill_blank(img, img_w, img_h, pic_w, pic_h)
elif w > h:
longest = w
scale = longest / float(pic_w)
img_h, img_w = int(h / scale), int(w / scale)
if img_h > pic_h:
longest1 = h
scale1 = longest1 / float(pic_h)
img_h_1, img_w_1 = int(h / scale1), int(w / scale1)
return fill_blank(img, img_w_1, img_h_1, pic_w, pic_h)
else:
return fill_blank(img, img_w, img_h, pic_w, pic_h)
elif h > w:
longest = h
scale = longest / float(pic_h)
img_h, img_w = int(h / scale), int(w / scale)
if img_w > pic_w:
longest1 = w
scale1 = longest1 / float(pic_w)
img_h_1, img_w_1 = int(h / scale1), int(w / scale1)
return fill_blank(img, img_w_1, img_h_1, pic_w, pic_h)
else:
return fill_blank(img, img_w, img_h, pic_w, pic_h)
def image_change(image_path):
imgshow=True
url_valid = False
window_name = 'ppp'
cv2.namedWindow(window_name, cv2.WND_PROP_FULLSCREEN)
cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN,
cv2.WINDOW_FULLSCREEN)
cv2.moveWindow(window_name, 0, 0)
screen_w, screen_h = GetSystemMetrics(0),GetSystemMetrics(1)
image_page = random.randint(0,1000)
image_curAlbum = 1
image_index = 0
file_0 = image_path + '0'
file_1 = image_path + '1'
base_url = 'https://graph.baidu.com/view/similar?' \
'srcp=crs_simialbum' \
' &tn=wise' \
' & idctag=tc' \
' &sids=10005_10801_10914_10913_11006_10922_10905_10016_10901_10941_10907_11012_10956_10970_10968_10974_11031_11120_1220 2_13203_16202_17008_17023_17025_16104_17105_17114_17851_17863_17071' \
' & logid=292853505' \
' & amp; promotion_name=aladdin_38009' \
' & carousel=10' \
' & amp;page={page}' \
' & amp; curAlbum={curAlbum}' \
' & seed_id=327081865' \
' & amp;sign=121b2c0e81707fee99a8b01607159121' \
' & index=0'
if os.path.exists(file_0):
os. remove(file_0)
if os.path.exists(file_1):
os. remove(file_1)
while True:
url = base_url. format(page=image_page, curAlbum=image_curAlbum)
print(url)
res = requests. get(url)
res.encoding = 'utf-8'
tplData_start = res.text.find('window.tplData')
if tplData_start != -1:
tplData_end = res.text.find(';', tplData_start)
if tplData_end != -1:
tplData = res.text[tplData_start : tplData_end].split('=', 1)[1]
# print(tplData)
tpldata = json. loads(tplData)
# print(tpldata)
if 'albumList' in tpldata.keys():
url_valid = True
albumList = tpldata['albumList']
for album in albumList:
imgList = album['imgList']
for img in imgList:
imgSrc = img['imgSrc']
img_filename_start = imgSrc.rfind('/')
img_filename_end = imgSrc.rfind('@')
img_filename = imgSrc[img_filename_start:img_filename_end]
imgdata = requests.get(imgSrc, stream=True)
print(img_filename)
open(image_path + str(image_index), 'wb').write(imgdata.content)
image_index = 1 - image_index
del imgdata
if os.path.exists(file_0) and os.path.exists(file_1):
img1 = cv2.imread(image_path + str(image_index))
img2 = cv2.imread(image_path + str(1 - image_index))
#src1 = resize_img(img1, 420, 640)
#src2 = resize_img(img2, 420, 640)
src1 = resize_img(img1, screen_w, screen_h)
src2 = resize_img(img2, screen_w, screen_h)
for it in range(WAIT + 1):
if it % 10 == 0:
weight = it / WAIT
res = cv2.addWeighted(src1, 1 - weight, src2, weight, 0)
cv2.imshow(window_name, res)
cv2.waitKey(10)
elif os.path.exists(file_0):
img1 = cv2.imread(file_0)
#src1 = cv2. resize(img1, (420, 640))
src1 = cv2.resize(img1, (screen_w, screen_h))
cv2.imshow(window_name, src1)
k = cv2.waitKey(8000)
if k == 27:
cv2.destroyAllWindows()
return
image_page = image_page + 1
#break
image_change('photo\')
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