
本程序还增加了黑白模式
if(values['gray']):
print("黑白模式")
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
一键截图模式(注意修改你保存截图的路径):
if event == 'Cut':
print("一键截图")
cv2.imencode('.jpg', frame)[1].tofile('C:\\Users\\13529\\Desktop\\jietu.jpg') # 注意保存图片的路径

Python代码
import PySimpleGUI as sg #pip install pysimplegui
import cv2 #pip install opencv-python
import numpy as np #pip install numpy
# 背景色
sg.theme('LightGreen')
# 定义窗口布局
layout = [
[sg.Image(filename='', key='image')],
[sg.Radio('None', 'Radio', True, size=(10, 1)),
sg.Radio('gray', 'Radio', size=(10, 1), key='gray'),sg.Button('Cut', size=(10, 1))],
[sg.Radio('threshold', 'Radio', size=(10, 1), key='thresh'),
sg.Slider((0, 255), 128, 1, orientation='h', size=(40, 15), key='thresh_slider')],
[sg.Radio('canny', 'Radio', size=(10, 1), key='canny'),
sg.Slider((0, 255), 128, 1, orientation='h', size=(20, 15), key='canny_slider_a'),
sg.Slider((0, 255), 128, 1, orientation='h', size=(20, 15), key='canny_slider_b')],
[sg.Radio('contour', 'Radio', size=(10, 1), key='contour'),
sg.Slider((0, 255), 128, 1, orientation='h', size=(20, 15), key='contour_slider'),
sg.Slider((0, 255), 80, 1, orientation='h', size=(20, 15), key='base_slider')],
[sg.Radio('blur', 'Radio', size=(10, 1), key='blur'),
sg.Slider((1, 11), 1, 1, orientation='h', size=(40, 15), key='blur_slider')],
[sg.Radio('hue', 'Radio', size=(10, 1), key='hue'),
sg.Slider((0, 225), 0, 1, orientation='h', size=(40, 15), key='hue_slider')],
[sg.Radio('enhance', 'Radio', size=(10, 1), key='enhance'),
sg.Slider((1, 255), 128, 1, orientation='h', size=(40, 15), key='enhance_slider'),
sg.Button('Exit', size=(10, 1))],
[]
]
# 窗口设计
window = sg.Window('OpenCV实时图像处理',
layout,
location=(800, 200),
finalize=True)
# 打开内置摄像头
cap = cv2.VideoCapture(0)
while True:
event, values = window.read(timeout=0, timeout_key='timeout')
# 实时读取图像
ret, frame = cap.read()
# # 阈值调节
if values['thresh']:
print("阈值调节模式")
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)[:, :, 0]
frame = cv2.threshold(frame, values['thresh_slider'], 255, cv2.THRESH_BINARY)[1]
# 边缘检测
if values['canny']:
print("边缘检测模式")
frame = cv2.Canny(frame, values['canny_slider_a'], values['canny_slider_b'])
# 轮廓检测
if values['contour']:
print("轮廓检测模式")
hue = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
hue = cv2.GaussianBlur(hue, (21, 21), 1)
hue = cv2.inRange(hue, np.array([values['contour_slider'], values['base_slider'], 40]),
np.array([values['contour_slider'] + 30, 255, 220]))
cnts = cv2.findContours(hue, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[0]
cv2.drawContours(frame, cnts, -1, (0, 0, 255), 2)
# 高斯滤波
if values['blur']:
print("高斯滤波模式")
frame = cv2.GaussianBlur(frame, (21, 21), values['blur_slider'])
# 色彩转换
if values['hue']:
print("色彩转换模式")
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
frame[:, :, 0] += int(values['hue_slider'])
frame = cv2.cvtColor(frame, cv2.COLOR_HSV2BGR)
# 调节对比度
if values['enhance']:
print("调节对比度模式")
enh_val = values['enhance_slider'] / 40
clahe = cv2.createCLAHE(clipLimit=enh_val, tileGridSize=(8, 8))
lab = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)
lab[:, :, 0] = clahe.apply(lab[:, :, 0])
frame = cv2.cvtColor(lab, cv2.COLOR_LAB2BGR)
if(values['gray']):
print("黑白模式")
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
if event == 'Cut':
cv2.imencode('.jpg', frame)[1].tofile('C:\\Users\\13529\\Desktop\\jietu.jpg')
# 退出
if event == 'Exit' or event is None:
break
# GUI实时更新
imgbytes = cv2.imencode('.png', frame)[1].tobytes()
window['image'].update(data=imgbytes)
window.close()