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Colour Image OpenCV->PySimpleGUI 

I think I found a nicer way to do it. 
PySimpleGUI is really neat, thank you for your hard work!
Cheers
jacky
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jackyOO7 2018-10-16 17:26:26 +02:00 committed by GitHub
parent 22c1dbd160
commit bd7cd64cee
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1 changed files with 6 additions and 17 deletions
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23
Demo_OpenCV_Webcam.py
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@ -4,10 +4,8 @@ if sys.version_info[0] >= 3:
import PySimpleGUI as sg import PySimpleGUI as sg
else: else:
import PySimpleGUI27 as sg import PySimpleGUI27 as sg
import cv2 as cv import cv2
from PIL import Image
import numpy as np import numpy as np
import io
from sys import exit as exit from sys import exit as exit
""" """
@ -31,7 +29,7 @@ def main():
window.Layout(layout).Finalize() window.Layout(layout).Finalize()
# ---===--- Event LOOP Read and display frames, operate the GUI --- # # ---===--- Event LOOP Read and display frames, operate the GUI --- #
cap = cv.VideoCapture(0) cap = cv2.VideoCapture(0)
recording = False recording = False
while True: while True:
event, values = window.ReadNonBlocking() event, values = window.ReadNonBlocking()
@ -42,10 +40,8 @@ def main():
recording = True recording = True
elif event == 'Stop': elif event == 'Stop':
recording = False recording = False
img = Image.new('RGB', (640, 480), (255, 255, 255)) img = np.full((480, 640),255)
bio = io.BytesIO() # a binary memory resident stream imgbytes=cv2.imencode('.png', img)[1].tobytes() #this is faster, shorter and needs less includes
img.save(bio, format='PNG') # save image as png to it
imgbytes = bio.getvalue()
window.FindElement('image').Update(data=imgbytes) window.FindElement('image').Update(data=imgbytes)
elif event == 'About': elif event == 'About':
sg.PopupNoWait('Made with PySimpleGUI', sg.PopupNoWait('Made with PySimpleGUI',
@ -56,14 +52,7 @@ def main():
keep_on_top=True) keep_on_top=True)
if recording: if recording:
ret, frame = cap.read() ret, frame = cap.read()
imgbytes=cv2.imencode('.png', cv2.cvtColor(frame,cv2.COLOR_BGR2RGB))[1].tobytes() #ditto
gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
# let img be the PIL image
img = Image.fromarray(gray) # create PIL image from frame
bio = io.BytesIO() # a binary memory resident stream
img.save(bio, format= 'PNG') # save image as png to it
imgbytes = bio.getvalue() # this can be used by OpenCV hopefully
window.FindElement('image').Update(data=imgbytes) window.FindElement('image').Update(data=imgbytes)
main() main()