Method of writing and restoring preservation data
AssigneeEastman Kodak Company
InventorThierry Prigent
Life of this patent
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Abstract
A method of writing preservation data onto a photographic medium (10) wherein the preservation data are converted into color and/or exposure energy values and wherein, for each preservation data item, at least one writing range (15) of the medium is exposed with the energy and/or color corresponding to said preservation data item, characterized in that the writing ranges (15) are arranged in rows (16) and columns (18), such as in a matrix (12), and in that each row and column of the matrix is linked to at least one control range (24, 26) exposed with an energy and/or color corresponding to at least one control data item created from the preservation data linked to the writing ranges, of the row and column, respectively.
Claims15
A method of writing preservation data onto a photographic medium comprising:
- converting the preservation data into at least one of color and exposure energy values;
- for each item of preservation data, exposing at least one writing range of the medium with the at least one of energy and color corresponding to said preservation data item;
- arranging the writing ranges in rows and columns in a matrix;
- and
- linking each row and column of the matrix to at least one control range exposed with at least one of an energy and color corresponding to at least one control data item created from the preservation data linked to the writing ranges.
A photographic medium comprising:
- at least one matrix of data exposure ranges and control ranges linked to rows and columns of the matrix, wherein the control ranges have at least one of colors and densities that are respectively one-to-one functions of at least one of colors and densities of the writing ranges of the corresponding rows and columns.
Dependencies are inferred from the claim text.