Patent ID: 8606030

Claim:
An image correction device, comprising: a test chart comprising two first circular black spots, an imaginary straight line connecting centers of the two first spots passing through a center of the test chart; an image capturing module comprising an image sensor, the image capturing module being configured for capturing an image of the test chart, the image comprising two second circular black spots, the second spots being images of the respective first spots; an image separating module configured for separating the image according to different color channels, thus obtaining a channel image; a processing module being for binarizing the channel image, thus obtaining a binary image of the channel image; a first calculating module configured for calculating coordinates of the centers of the two second spots of the binary image; a second calculating module configured for calculating a rotated angle of the image relative to an orientation of the test chart based on the centers of the two second spots; and a correction module for inputting the calculated rotated angle into the image sensor so that the image sensor is capable of counterrotating images according to the rotated angle.