Generation of salient contours using live video

摘要

In various implementations, a computing device is configured to provide a live preview of salient contours generated on a live digital video feed. In particular, a designer can use a computing device with a camera, such as a smart phone, to view a real-time preview of salient contours generated from edges detected in frames of a live digital video feed prior to capture, thereby eliminating the unpredictability of salient contours generated from a previously captured image. In some implementations, the salient contours are overlaid on a greyscale conversion of the live digital video feed for improved processing and visual contrast. Other implementations modify aspects of edge-detecting or post-processing filters for improved performance on mobile computing devices.

主权项

1. A non-transitory computer storage medium storing computer-useable instructions that, when used by one or more computing devices, cause the one or more computing devices to perform operations for providing a live preview of salient contours associated with live digital video feed, the operations comprising:
processing a first frame of a plurality of frames in a live digital video feed through an edge-detecting filter to generate a first output, the first output including at least one edge detected within the first frame; processing the first output through a plurality of filters to generate a second output, the plurality of filters configured to collectively preserve at least some color gradient information corresponding to at least some pixels adjacent the at least one edge; and presenting the first frame with the second output as an overlay thereon, the overlay including the at least some color gradient information and providing a live preview of salient contours to be generated from the first frame.