Two-level error correcting codes for color space encoded image
Embodiments of the present disclosure can include devices for storing and exchanging color space encoded images. The encoded images can store input data into high capacity multi-colored composite two-dimensional pictures having different symbols organized in specific order using sets in a color space. The encoding can include performing two-level error correction and generating frames based on the color space for formatting and calibrating the encoded images during decoding. The decoding can use the frames to perform color restoration and distortion correction. The decoding can be based on a pseudo-Euclidean distance between a distorted color and a color in a color calibration cells. In some embodiments, an encoded image can be further divided into sub-images during encoding for simplified distortion correction.
1. A computer-implemented method for encoding data using a color space, the method comprising:
receiving data for encoding;
dividing the data into a bit array;
appending first source control data to one or more groups of bits in the bit array based at least in part on performing error correction on the group of bits; and
dividing the one or more groups of bits in the bit array into half-groups;
appending second source control data to the half-groups based at least in part on performing error correction on the one or more half-groups;
determining a code sequence based at least in part on the bits, half-groups, first source control data, and second source control data;
creating colored cells within a color space to provide an encoded representation of the received data in an image by determining a color encoding for one or more codes in the code sequence by mapping the code sequence to a stream of integers, each integer in the stream of integers corresponding to a color in the color space for a cell in the image; and
creating one or more additional cells adjoining the image, the one or more additional cells for assisting in decoding the image.
2. The method of claim 1 , the one or more additional cells including a frame surrounding the image.
3. The method of claim 1 , the one or more additional cells including color calibration cells adjoining the image.
4. A system for encoding data using a color space, the system comprising:
at least one processor configured to:
receive data for encoding;
divide the data into a bit array;
append first source control data to one or more groups of bits in the bit array based at least in part on performing error correction on the group of bits; and
divide the one or more groups of bits in the bit array into half-groups;
append second source control data to the half-groups based at least in part on performing error correction on the one or more half-groups;
determine a code sequence based at least in part on the bits, half-groups, first source control data, and second source control data;
create colored cells within a color space to provide an encoded representation of the received data in an image by determining a color encoding for one or more codes in the code sequence by mapping the code sequence to a stream of integers, each integer in the stream of integers corresponding to a color in the color space for a cell in the image; and
create one or more additional cells adjoining the image, the one or more additional cells for assisting in decoding the image.
5. The system of claim 4 , the one or more additional cells including a frame surrounding the image.
6. The system of claim 4 , the one or more additional cells including color calibration cells adjoining the image.