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IPyPlot is a small python package offering fast and efficient plotting of images inside Python Notebooks. It's using IPython with HTML for faster, richer and more interactive way of displaying big numbers of images.

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karolzak/ipyplot

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IPyPlot is a small python package offering fast and efficient plotting of images inside Python Notebooks cells. It's using IPython with HTML for faster, richer and more interactive way of displaying big numbers of images.

Displaying big numbers of images with Python in Notebooks always was a big pain for me as I always usedmatplotlib for that task and never have I even considered if it can be done faster, easier or more efficiently.
Especially in one of my recent projects I had to work with a vast number of document images in a very interactive way which led me to forever rerunning notebook cells and waiting for countless seconds formatplotlib to do it's thing..
My frustration grew up to the point were I couldn't stand it anymore and started to look for other options..
Best solution I found involved usingIPython package in connection with simple HTML. Using that approach I built this simple python package calledIPyPlot which finally helped me cure my frustration and saved a lot of my time.

Features:

  • Easy, fast and efficient plotting of images in python within notebooks
  • Plotting functions (seeexamples section to learn more):
    • plot_images - simply plots all the images in a grid-like layout
    • plot_class_representations - similar toplot_images but displays only the first image for each label/class (based on provided labels collection)
    • plot_class_tabs - plots images in a grid-like manner in a separate tab for each label/class based on provided labels
  • Supported image formats:
    • Sequence of local storage URLs, e.g.[your/dir/img1.jpg]
    • Sequence of remote URLs, e.g.[http://yourimages.com/img1.jpg]
    • Sequence ofPIL.Image objects
    • Sequence of images asnumpy.ndarray objects
    • Supported sequence types:list,numpy.ndarray,pandas.Series
  • Misc features:
    • custom_texts param to display additional texts like confidence score or some other information for each image
    • force_b64 flag to force conversion of images from URLs to base64 format
    • click on image to enlarge
    • control number of displayed images and their width throughmax_images andimg_width params
    • "show html" button which reveals the HTML code used to generate plots
    • option to set specific order of labels/tabs, filter them or ignore some of the labels
  • Supported notebook platforms:
    • Jupyter
    • Google Colab
    • Azure Notebooks
    • Kaggle Notebooks

Getting Started

To start using IPyPlot, seeexamples below or go togear-images-examples.ipynb notebook which takes you through most of the scenarios and options possible withIPyPlot.

Installation

IPyPlot can be installed throughPyPI:

pip install ipyplot

or directly from this repo usingpip:

pip install git+https://github.com/karolzak/ipyplot

Usage examples

IPyPlot offers 3 main functions which can be used for displaying images in notebooks:

To start working withIPyPlot you need to simply import it like this:

importipyplot

and use any of the available plotting functions shown below (notice execution times).

  • images - should be a sequence of eitherstring (local or remote image file URLs),PIL.Image objects ornumpy.ndarray objects representing images
  • labels - should be a sequence ofstring orint

Display a collection of images

images= ["docs/example1-tabs.jpg","docs/example2-images.jpg","docs/example3-classes.jpg",]ipyplot.plot_images(images,max_images=30,img_width=150)

Display class representations (first image for each unique label)

images= ["docs/example1-tabs.jpg","docs/example2-images.jpg","docs/example3-classes.jpg",]labels= ['label1','label2','label3']ipyplot.plot_class_representations(images,labels,img_width=150)

Display images in separate, interactive tabs for each unique class

images= ["docs/example1-tabs.jpg","docs/example2-images.jpg","docs/example3-classes.jpg",]labels= ['class1','class2','class3']ipyplot.plot_class_tabs(images,labels,max_imgs_per_tab=10,img_width=150)

To learn more about what you can do with IPyPlot go togear-images-examples.ipynb notebook for more complex examples.

About

IPyPlot is a small python package offering fast and efficient plotting of images inside Python Notebooks. It's using IPython with HTML for faster, richer and more interactive way of displaying big numbers of images.

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