Issue
Introduction
I am trying to make a small tool for classifying images using the ipywidgets in a Jupyter Notebook, but I am having some trouble aligning the classes and the images. Do you have any suggestion how to fix this.
What I did
import ipywidgets as widgets
from IPython.display import display
import glob
# My images
image_paths = glob.glob("./images/*.png")
# Display image
def display_image(path):
file = open(path, "rb")
image = file.read()
return widgets.Image(
value=image,
format='png',
width=700,
height=700,
)
# Dropdown
def create_dropdown():
return widgets.Dropdown(
options=["1","2","3","4","5","6","7","8","9","10"],
value='5',
description='Category:',
disabled=False
)
# Creating widgets
input_dropdown = create_dropdown()
button = widgets.Button(description="Submit")
output_image = widgets.Image()
output_image.value = display_image(image_paths[-1]).value
# Define function to bind value of the input to the output variable
def bind_input_to_output(sender):
image_path = image_paths[-1]
image_score = input_dropdown.value
next_image_path = image_paths.pop()
print(image_score, image_path)
output_image.value = display_image(next_image_path).value
# Tell the text input widget to call bind_input_to_output() on submit
button.on_click(bind_input_to_output)
# Displaying widgets
display(output_image, input_dropdown, button)
Results
With the above code I end up categorising the upcoming picture, but I really don't understand why. It seems the widgets does not update the image the first time I press the button.
Solution
def bind_input_to_output(sender):
image_path = image_paths.pop()
image_score = input_dropdown.value
next_image_path = image_paths[-1]
print(image_score, image_path)
output_image.value = display_image(next_image_path).value
pop first and give next filename at last item
Answered By - 양소영
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