Creating images for displaying or printing on low-contrast background

摘要

Techniques for automatically adding special effects to an image to be overlaid on a low-contrast background are presented. A stroke or an intervening layer of a color contrasting with the background color is automatically added to provide a contrasting color around the edges of visible image content in an image container of an electronic document. The technique may be applied to entire libraries of images to generate variant images that are visually perceptible when displayed or printed on low-contrast background colors.

主权项

1. A computer-implemented method for adding a stroke around image content in an image container of an electronic document, the image container characterized by a height dimension and a width dimension, and having visible image content characterized by predefined content edges, the method comprising
shrinking, automatically by one or more processors, the visible image content contained within the image container such that no portion of the visible image content abuts a boundary of the image container, while maintaining an original size of the image container; selecting, automatically by one or more processors, the predefined content edges; determining, automatically by one or more processors, a stroke width based only on a smaller dimension of the height dimension and the width dimension of the image container; and adding, automatically by one or more processors, a stroke characterized by the stroke width around the predefined content edges to produce a variant image comprising the shrunken visible image content and added stroke.