Two dimensional barcode with dynamic environmental data system, method, and apparatus

A method of reading of a sensor-augmented two-dimensional barcode symbol comprising:

• optically scanning an image of the sensor-augmented two-dimensional barcode symbol to obtain a greyscale value for each pixel in the image;
• constructing a greyscale pixel map of the pixels in the sensor-augmented two-dimensional barcode symbol;
• processing the pixels in the greyscale pixel map by assigning a binary color value to each of the pixels and to form a binarised pixel map;
• identifying the two-dimensional barcode symbol in the binarised pixel map;
• decoding the identified two-dimensional barcode symbol in the binarised pixel map to recover a symbol codeword sequence;
• recovering data codewords from the symbol codeword sequence utilizing an error-correction process on the symbol codeword sequence;
• processing the data codewords for identification of barcode modules in a dynamic region;
• determining an average greyscale value of the barcode modules in the dynamic region;
• and
• processing the average greyscale value of the barcode modules in the dynamic region to determine a reflectance percentage of incident light at a time of scanning.