GUIDED IMAGE UPSAMPLING USING BITMAP TRACING

摘要

A method of increasing resolution of an image includes generating vector contours associated with a first image and scaling the vector contours to a second resolution. The first image has a first resolution, and the second resolution is greater than the first resolution. The vector contours are rendered to generate a guiding image at the second resolution, and a second image is generated from the first image based on the guiding image, by using joint upsampling. The second image is generated at the second resolution. The vector contours can be generated by bitmap tracing binary images at different quantization levels. An apparatus and computer readable device implementing the method of increasing the resolution of an image are also provided.

主权项

1. A method of increasing image resolution, the method comprising:
scaling, using an imaging device, vector contours associated with a first image based on a second resolution, the first image comprising a first resolution, the second resolution being greater than the first resolution; generating, using the imaging device, a guiding image based on the vector contours, the guiding image being generated based on the second resolution; and generating, using the imaging device, a second image based on the first image using the guiding image, the second image being generated based on the second resolution.