Extraction of image feature data from images

摘要

An apparatus and method for obtaining image feature data of an image are disclosed herein. A color histogram of the image is extracted from the image, the extraction of the color histogram including performing one-dimensional sampling of pixels comprising the image in each of a first dimension of a color space, a second dimension of the color space, and a third dimension of the color space. An edge map corresponding to the image is analyzed to detect a pattern included in the image. In response to a confidence level of the pattern detection being below a pre-defined threshold, extracting from the image an orientation histogram of the image. And identify a dominant color of the image.

主权项

1. A method comprising:
generating a color histogram of an image by performing one-dimensional samplings of pixels of the image in each dimension of a multi-dimensional color space; performing pattern detection on an edge map of the image; generating an orientation histogram of the image in response to a confidence level of the pattern detection failing to transgress a threshold value, the generating of the orientation histogram being performed by a processor of a machine; and determining a dominant color of the image.