Sketch completion using machine learning

A system comprising:

• at least one processor;
• and
• memory having stored thereon computer-readable instructions that are executable by the at least one processor to perform operations for sketch completion of an input digital sketch using a model trained using machine learning, the operations including:
• receiving the input digital sketch;
• providing the input digital sketch as input to a machine learning model trained using a training set of digital sketch images to generate data describing visual characteristics of a digital sketch image;
• receiving output data describing visual characteristics of the input digital sketch;
• identifying available digital sketch images associated with data describing similar visual characteristics to the output data;
• and
• outputting at least one identified digital sketch image for selection via a user interface for sketch completion of the input digital sketch.

In a digital medium environment to train a machine learning model used for identifying digital sketch images for sketch completion of an input digital sketch, a method implemented by a computing device, the method comprising:

• receiving, by the computing device, a training set of digital sketch images;
• providing, by the computing device, the training set of digital sketch images as input to a machine learning model to train the machine learning model to identify and describe visual characteristics of digital sketch images;
• providing, by the computing device, a different set of digital sketch images as input to the trained machine learning model;
• receiving, by the computing device, data describing visual characteristics of the digital sketch images of the different set as output from the trained machine learning model;
• generating, by the computing device, a plurality of data clusters, each cluster including data describing similar visual characteristics identified by the trained machine learning model in the digital sketch images of the different set;
• and
• outputting, by the computing device, the trained machine learning model and the plurality of data clusters.