Data storage and exchange device for color space encoded images
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 device for data storage and exchange, the device comprising:
an interface for receiving data; and
at least one processor configured to encode the data by
creating colored cells within a color space to provide an encoded representation of the received data in an image by processing the received data to obtain 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, including color calibration cells, adjoining the image, the one or more additional cells for assisting in decoding the image by determining a pseudo-Euclidean metric in the color space, the metric measuring distance including a measure of an average of a red component in the colored cells and a red component in the color calibration cells.
2. The device of claim 1 , further comprising a display to display the image.
3. The device of claim 1 , further comprising
storage; and
the at least one processor configured to store the image in the storage after encoding the data.
4. The device of claim 1 , the one or more additional cells including a frame surrounding the image.
5. The device of claim 1 , wherein the pseudo-Euclidean metric is defined as:
Δ
C
=
(
X
+
r
_
256
)
Δ
R
2
+
Y
Δ
G
2
+
(
Z
+
255
-
r
_
256
)
Δ
B
2
wherein:
ΔC is a pseudo-Euclidean distance between two colors,
C 1 includes a red component R 1 , a green component G 1 , and a blue component B 1 ,
C 2 includes a red component R 2 , a green component G 2 , and a blue component B 2 ,
X, Y and Z represent coefficients,
Δ R=R 2 −R 1 ,
Δ G=G 2 −G 1 ,
Δ B=B 2 −B 1 , and
r
_
=
R
1
+
R
2
2
.
6. The device of claim 5 , wherein the coefficients of the pseudo-Euclidean metric are defined as X=2, Y=4 and Z=2.
7. A device for data storage and exchange, the device comprising:
a camera; and
at least one processor configured to decode the data by
receiving, from the camera, an image having colored cells corresponding to a stream of integers encoding the data;
locating the image by locating one or more additional cells, including color calibration cells, adjoining the image; and
decoding data based at least in part on the colored cells and the one or more additional cells adjoining the image by determining a pseudo-Euclidean metric, the metric measuring distance including a measure of an average of a red component in the colored cells and a red component in the color calibration cells.
8. The device of claim 7 , the one or more additional cells including a frame surrounding the image.
9. The device of claim 7 , wherein the pseudo-Euclidean metric is defined as:
Δ
C
=
(
X
+
r
_
256
)
Δ
R
2
+
Y
Δ
G
2
+
(
Z
+
255
-
r
_
256
)
Δ
B
2
wherein:
ΔC is a pseudo-Euclidean distance between two colors,
C 1 includes a red component R 1 , a green component G 1 , and a blue component B 1 ,
C 2 includes a red component R 2 , a green component G 2 , and a blue component B 2 ,
X, Y and Z represent coefficients,
Δ R=R 2 −R 1 ,
Δ G=G 2 −G 1 ,
Δ B=B 2 −B 1 , and
r
_
=
R
1
+
R
2
2
.
10. The device of claim 9 , wherein the coefficients of the pseudo-Euclidean metric are defined as X=2, Y=4 and Z=2.
11. A computer program product tangibly embodied in a non-transitory computer-readable medium for data storage and exchange, the computer program product including instructions operable to cause a data processing apparatus to:
create colored cells within a color space to provide an encoded representation of the received data in an image by processing the received data to obtain 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, including color calibration cells, adjoining the image, the one or more additional cells for assisting in decoding the image by determining a pseudo-Euclidean metric in the color space, the metric measuring distance including a measure of an average of a red component in the colored cells and a red component in the color calibration cells.
12. The computer program product of claim 11 , wherein the instructions are operable to cause the data processing apparatus to display the image on a display.
13. The computer program product of claim 11 , wherein the instructions are operable to cause the data processing apparatus to store the image in a storage after encoding the data.
14. The computer program product of claim 11 , the one or more additional cells including a frame surrounding the image.
15. The computer program product of claim 11 , wherein the pseudo-Euclidean metric is defined as:
Δ
C
=
(
X
+
r
_
256
)
Δ
R
2
+
Y
Δ
G
2
+
(
Z
+
255
-
r
_
256
)
Δ
B
2
wherein:
ΔC is a pseudo-Euclidean distance between two colors,
C 1 includes a red component R 1 , a green component G 1 , and a blue component B 1 ,
C 2 includes a red component R 2 , a green component G 2 , and a blue component B 2 ,
X, Y and Z represent coefficients,
Δ R=R 2 −R 1 ,
Δ G=G 2 −G 1 ,
Δ B=B 2 −B 1 , and
r
_
=
R
1
+
R
2
2
.
16. The computer program product of claim 15 , wherein the coefficients of the pseudo-Euclidean metric are defined as X=2, Y=4 and Z=2.
17. A computer program product tangibly embodied in a non-transitory computer-readable medium for data storage and exchange, the computer program product including instructions operable to cause a data processing apparatus to:
receive, from a camera, an image having colored cells corresponding to a stream of integers encoding the data;
locate the image by locating one or more additional cells, including color calibration cells, adjoining the image; and
decode data based at least in part on the colored cells and the one or more additional cells adjoining the image by determining a pseudo-Euclidean metric, the metric measuring distance including a measure of an average of a red component in the colored cells and a red component in the color calibration cells.
18. The computer program product of claim 17 , the one or more additional cells including a frame surrounding the image.
19. The computer program product of claim 17 , wherein the pseudo-Euclidean metric is defined as:
Δ
C
=
(
X
+
r
_
256
)
Δ
R
2
+
Y
Δ
G
2
+
(
Z
+
255
-
r
_
256
)
Δ
B
2
wherein:
ΔC is a pseudo-Euclidean distance between two colors,
C 1 includes a red component R 1 , a green component G 1 , and a blue component B 1 ,
C 2 includes a red component R 2 , a green component G 2 , and a blue component B 2 ,
X, Y and Z represent coefficients,
Δ R=R 2 −R 1 ,
Δ G=G 2 −G 1 ,
Δ B=B 2 −B 1 , and
r
_
=
R
1
+
R
2
2
.
20. The computer program product of claim 19 , wherein the coefficients of the pseudo-Euclidean metric are defined as X=2, Y=4 and Z=2.