The use of colours in 2D barcodes is challenging. This is even more so in barcodes for mobile devices. Although 2D barcodes are fast becoming the ubiquitous tool for mobile computing, most implementations considered monochromatic 2D barcodes. A few colour 2D barcodes are emerging but these implementations only utilises a limited number of colours. In this paper, we present the challenges faced by the use of colours in 2D barcodes for mobile devices. We also introduce a novel colour selection scheme for 2D barcode, which is implemented in our novel colour 2D barcode - the MMCCTM. Our novel selection scheme resulted in a robust 2D barcode that can use more colours than existing colour 2D barcodes for mobile devices.
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