Various embodiments disclosed herein describe a method comprising receiving indicia data from an indicia scanner. The indicia data comprises at least decoded data obtained based on decoding an indicium in an image, an image tile comprising a portion of the indicium, and/or location of one or more corners of the portion of the indicium in the image. Further, the method includes generating an image of an ideal indicium based on at least the decoded data. Thereafter, the image of the ideal indicium is modified to generate a modified image of the ideal indicium. Further, the portion of the indicium is retrieved from modified image. A clean image tile comprises a portion of the ideal indicium. Furthermore, the method includes generating training data, wherein the training data includes the portion of the indicium and the portion of the ideal indicium.