Could you write a good image recognizer for a 100 MHz mobile phone processor with 1 MB heap, 320x240 image, on a poorly-optimized Java stack? It needs to locate and read two-dimensional barcodes made up of square modules which might be no more than a few pixels in size. We had to do that in order to establish Semacode, a local start up company that makes a software barcode reader for cell phones.