The present application discloses a method for compensating mura defects in a display image, the method includes obtaining a plurality of display data and a plurality of address data corresponding to a plurality of display pixels; and determining if a pixel is a sampling pixel based on a data table comprising a plurality of compensation data associated with a plurality of compensation points for compensating a plurality of sampling pixels, each compensation point corresponding to a group of at least one sampling pixel, the plurality of sampling pixels comprising a plurality of display pixels having mura defects and constituting a portion of the plurality of display pixels.