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# %matplotlib notebook
import numpy as np
import cv2
import matplotlib.pyplot as plt
from IPython import display
from ipywidgets import widgets
from ipywidgets import interact
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# makes plots look sharper on Macboook Pro retina screen
%config InlineBackend.figure_format = 'retina'
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# test image stack
arr = []
for i in range(50):
b = np.random.rand(500,500)
b= (b*(2**16-1)).astype('uint16')
arr.append(b)
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# snap (MPL)
button = widgets.Button(description='Snap')
display.display(button)
def on_button_clicked(b):
img=arr.pop()
plt.imshow(img, cmap='gray')
display.clear_output(wait=True)
display.display(plt.gcf())
button.on_click(on_button_clicked)
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# snap (CV2)
button = widgets.Button(description='Snap')
display.display(button)
def on_button_clicked(b):
img=arr.pop()
cv2.imshow('Video',img)
cv2.waitKey(30)
button.on_click(on_button_clicked)
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# test image stack
a = []
for i in range(50):
b = np.zeros((500,500))
b[i:i+100, i:i+100]=1.0
b=b*255
b=b.astype('uint8')
a.append(b)
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# video (MPL) (slow, doesn't work well)
# for img in a:
# plt.imshow(img, cmap='gray')
# display.clear_output(wait=True)
# display.display(plt.gcf())
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# video (CV2)
cv2.namedWindow('Video',cv2.WINDOW_NORMAL)
for img in a:
b = cv2.imshow('Video',img)
cv2.resizeWindow('Video', 500,500)
cv2.moveWindow('Video',0,0)
display.clear_output(wait=True)
print np.random.randn(1)
if cv2.waitKey(30) >= 0:
break
cv2.destroyAllWindows()
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# video with button (CV2)
button = widgets.Button(description='Live')
display.display(button)
def on_button_clicked(b):
for img in a:
cv2.imshow('Video',img)
cv2.waitKey(30)
display.clear_output(wait=True)
print np.random.randn(1)
button.on_click(on_button_clicked)
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button = widgets.ToggleButton(description='Live', value=False)
def on_click(change):
display.clear_output(wait=True)
print change['new']
button.observe(on_click, names='value')
display.display(button)
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import time
b1 = widgets.Button(description='b1')
b2 = widgets.Button(description='b2')
def ctrlloop():
def b1_click(b):
for i in range(10):
print 'b1', i
time.sleep(0.5)
def b2_click(b):
for i in range(10):
print 'b2', i
# dl = widgets.jsdlink((button, 'value'), (vid, 'value'))
b1.on_click(b1_click)
b2.on_click(b2_click)
widgets.HBox([b1,b2])
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play = widgets.Play(
interval=160,
value=50,
min=0,
max=100,
step=1,
description="Press play",
disabled=False
)
slider = widgets.IntSlider()
widgets.jslink((play, 'value'), (slider, 'value'))
widgets.HBox([play, slider])
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f = open('temp.msg','wb')
f.write(str(1))
f.close()
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# icons are from "font-awesome"
x_minus = widgets.Button(
description='',
disabled=False,
button_style='',
icon = 'arrow-left')
x_plus = widgets.Button(
description='',
disabled=False,
button_style='',
icon = 'arrow-right')
y_minus = widgets.Button(
description='',
disabled=False,
button_style='',
icon='arrow-up')
y_plus = widgets.Button(
description='',
disabled=False,
button_style='',
icon = 'arrow-down')
xy_slider = widgets.VBox([widgets.FloatText(description='speed', width='30%',value=50),widgets.IntSlider(width=100, step=10)])
xy_cluster = widgets.VBox([ widgets.HBox([x_minus,x_plus]), widgets.HBox([y_minus, y_plus]) ])
z_minus = widgets.Button(
description='',
disabled=False,
button_style='',
icon = 'arrow-up')
z_plus = widgets.Button(
description='',
disabled=False,
button_style='',
icon = 'arrow-down')
z_slider = widgets.VBox([widgets.FloatText(description='speed', width='30%',value=50),widgets.IntSlider(width=100, step=10)])
z_cluster = widgets.VBox([ z_minus, z_plus])
widgets.HBox([xy_cluster, xy_slider, z_cluster, z_slider])