Methods of content-driven image cropping

摘要

A method of cropping an image based on a content of the image according to one example embodiment includes identifying image features in the content of the image, determining horizontal histogram frequencies and vertical histogram frequencies of the identified image features, determining borders of a document bounding box based on the determined horizontal histogram frequencies and vertical histogram frequencies, and cropping the image according to the document bounding box.

主权项

1. A method of cropping an image based on a content of the image, comprising:
receiving the image at a processor; identifying image features in the content of the image; determining horizontal histogram frequencies and vertical histogram frequencies of the identified image features; determining borders of a document bounding box based on the determined horizontal histogram frequencies and vertical histogram frequencies; determining a horizontal centroid and a vertical centroid of the horizontal and vertical histogram frequencies, respectively; resizing the document bounding box based on the determined horizontal and vertical centroids; and cropping the image according to the document bounding box as said resized.