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Simplified code. Made font size selectable using a slider. Removed USING_QT code. Window now resizable so that font resizing works

This commit is contained in:
PySimpleGUI 2022-06-22 15:45:52 -04:00
parent 62caa3b06e
commit b65b451c60
1 changed files with 14 additions and 21 deletions
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35
DemoPrograms/Demo_OpenCV_Webcam_ASCII.py
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@ -2,8 +2,6 @@ import cv2
from PIL import Image
import numpy as np
import PySimpleGUI as sg
font_size = 6
USING_QT = False
"""
Interesting program that shows your webcam's image as ASCII text. Runs in realtime, producing a stream of
@ -22,40 +20,34 @@ USING_QT = False
pip install opencv-python
On Linux / Mac use pip3 instead of pip
Copyright 2022, PySimpleGUI
"""
# The magic bits that make the ASCII stuff work shamelessly taken from https://gist.github.com/cdiener/10491632
chars = np.asarray(list(' .,:;irsXA253hMHGS#9B&@'))
SC, GCF, WCF = .1, 1, 7/4
sg.theme('Black') # make it look cool
sg.theme('Black') # make it look cool with white chars on black background
font_size = 6
# define the window layout
# number of lines of text elements. Depends on cameras image size and the variable SC (scaller)
NUM_LINES = 48
if USING_QT:
layout = [[sg.Text(i, size_px=(800, 12),
font=('Courier', font_size),
key='-OUT-' + str(i))] for i in range(NUM_LINES)]
else:
layout = [[sg.Text(i, size=(120, 1), font=('Courier', font_size),
pad=(0, 0), key='-OUT-'+str(i))] for i in range(NUM_LINES)]
layout += [[sg.Button('Exit', size=(5, 1)),
sg.Text('GCF', size=(4, 1)),
sg.Spin([round(i, 2) for i in np.arange(0.1, 20.0, 0.1)],
initial_value=1, key='-SPIN-GCF-', size=(5, 1)),
sg.Text('WCF', size=(4, 1)),
sg.Slider((1, 4), resolution=.05, default_value=1.75,
orientation='h', key='-SLIDER-WCF-', size=(15, 15))]]
layout = [[[sg.Text(i, font=('Courier', font_size), pad=(0, 0), key=('-OUT-', i))] for i in range(NUM_LINES)],
[sg.Text('GCF', s=9, justification='r'), sg.Slider((0.1, 20), resolution=.05, default_value=1, orientation='h', key='-SPIN-GCF-', size=(15, 15))],
[sg.Text('Font Size', s=9, justification='r'), sg.Slider((4, 20), resolution=1, default_value=font_size, orientation='h', key='-FONT SIZE-', size=(15, 15)),
sg.Push(), sg.Button('Exit')]]
# create the window and show it without the plot
window = sg.Window('Demo Application - OpenCV Integration', layout,
location=(800, 400), font='Any 18')
window = sg.Window('Demo Application - OpenCV - ASCII Chars Output', layout, font='Any 18', resizable=True)
# ---===--- Event LOOP Read and display frames, operate the GUI --- #
# Setup the OpenCV capture device (webcam)
cap = cv2.VideoCapture(0)
while True:
event, values = window.read(timeout=0)
@ -66,7 +58,7 @@ while True:
img = Image.fromarray(frame) # create PIL image from frame
GCF = float(values['-SPIN-GCF-'])
WCF = values['-SLIDER-WCF-']
WCF = 1.75
# More magic that coverts the image to ascii
S = (round(img.size[0] * SC * WCF), round(img.size[1] * SC))
img = np.sum(np.asarray(img.resize(S)), axis=2)
@ -74,7 +66,8 @@ while True:
img = (1.0 - img / img.max()) ** GCF * (chars.size - 1)
# "Draw" the image in the window, one line of text at a time!
font_size = int(values['-FONT SIZE-'])
for i, r in enumerate(chars[img.astype(int)]):
window['-OUT-'+str(i)].update("".join(r))
window[('-OUT-', i)].update("".join(r), font=('Courier', font_size))
window.close()