Image Histogram

[maurapintor]

Summary of the request

Create a new handle that allows picking one image from a list and returns the histogram of an image. The histogram can be rendered either in the frontend (JavaScript library, for extra points), or in the backend and passed as an image (python / matplotlib).
This is a new feature. Old functionalities must be preserved.
Difficulty:
/(If using Javascript)

Subtasks

• Copy the classification API form and modify it where it is required.
• Implement the new API that takes as input the id of an image and returns the histogram.
• Visualize the histogram and the image in the GUI.

Plan for the implementation

Modify the code such that the new interface shows the dropdown menu to select the image and the submit button.
It is not required to use queues. The API can be implemented as showing the form if a GET request is issued, and the results if the POST is validated.

Useful links:

• https://stackoverflow.com/questions/22159160/python-calculate-histogram-of-image