Visual cryptography and voting technology
In some embodiments, techniques for voting and visual cryptography may include various enhancements.
1. A method for privacy, comprising:
using one or more processors to perform steps including:
providing a pixel value;
selecting a first glyph; and
selecting a second glyph;
wherein the second glyph is separated from the first glyph in a predetermined sequence of glyphs by a factor, wherein the factor is associated with the pixel value;
wherein the pixel value is one of G predetermined values and wherein the first glyph includes R predetermined subregions, wherein R is at least two times G minus two.
2. The method of claim 1 , wherein the first glyph is selected randomly.
3. A method for privacy, comprising:
using one or more processors to perform steps including:
providing a pixel value;
selecting a first glyph; and
selecting a second glyph;
wherein the second glyph is separated from the first glyph in a predetermined sequence of glyphs by a factor, wherein the factor is associated with the pixel value;
wherein the first glyph is associated with an index, J, and wherein determining the second glyph includes calculating an index, K, wherein K is associated with 3 and the pixel value, and wherein selecting the second glyph includes calculating the remainder of K divided by N, wherein N is the number of distinct glyphs in the predetermined sequence of glyphs, and selecting the Kth glyph in the predetermined sequence of glyphs.
4. The method of claim 3 , wherein calculating K includes selecting a value of K that differs from 3 by the pixel value.
5. A method for privacy, comprising:
using one or more processors to perform steps including:
providing a pixel value;
selecting a first glyph; and
selecting a second glyph;
wherein the second glyph is separated from the first glyph in a Predetermined sequence of glyphs by a factor, wherein the factor is associated with the pixel value;
wherein the predetermined sequence of glyphs contains at least three glyphs, and wherein for each glyph in the predetermined sequence of glyphs, all opaque regions of the glyph are consecutive in a predetermined sequence of regions, wherein the first consecutive opaque region is associated with the index of the glyph in the predetermined sequence of glyphs, and wherein the last region in the predetermined sequence of regions is consecutive with the first region in the predetermined sequence of regions.