Printer cartridges and memory devices containing compressed multi-dimensional color tables
In one example in accordance with the present disclosure a printer cartridge and memory device containing a representation of a compressed multi-dimensional color table is described. The color table includes at least one low dimensional portion of the multi-dimensional color table storing color transformation information at a first resolution and a number of remaining portions of the multi-dimensional color table storing color transformation information at a second resolution. In the color table, the first resolution is greater than the second resolution and the at least one compressed multi-dimensional color table is to generate a high resolution uncompressed multi-dimensional color table the high resolution being at least as great as the first resolution.
1. A memory device comprising:
a circuit to output a number of compressed multi-dimensional color tables to a printer to convert a digital input color model into an output color model for physical printing; and
the number of compressed multi-dimensional color tables, wherein each compressed multi-dimensional color table comprises:
at least one low dimensional portion having a number of dimensions that is less than the number of dimensions of the compressed multi-dimensional color table, the at least one low dimensional portion including color transformation information at a first resolution; and
a number of remaining portions, which are those portions which are not defined by the at least one low dimensional portion, the remaining portions including color transformation information at a second resolution;
wherein:
the at least one low dimensional portion and the number of remaining portions are to be interpolated to generate a high resolution uncompressed multi-dimensional color table, the high resolution being at least as great as the first resolution;
the at least one low dimensional portion is the same as a low dimensional portion of another memory device; and
the first resolution is greater than the second resolution.
2. The memory device of claim 1 , wherein each compressed multi-dimensional color table corresponds to a particular media type.
3. The memory device of claim 1 , wherein the number of compressed multi-dimensional color tables correspond to an ink color in a cartridge in which the memory device is disposed.
4. The memory device of claim 1 , wherein the at least one low dimensional portion stores information near-neutral colors.
5. The memory device of claim 1 , wherein the at least one low dimensional portion includes a neutral axis.
6. The memory device of claim 1 , wherein the compressed multi-dimensional color tables correspond to a particular media color.
7. The memory device of claim 1 , wherein the compressed multi-dimensional color tables correspond to a particular output quality.
8. The memory device of claim 1 , wherein the compressed multi-dimensional color tables correspond to a particular input device.
9. The memory device of claim 1 , wherein the at least one low dimensional portion comprises multiple low dimensional portions.
10. The memory device of claim 9 , wherein the multiple low dimensional portions comprise one-dimensional axes.
11. The memory device of claim 9 , wherein the multiple low dimensional portions comprise transitions from primary colors to secondary colors.
12. The memory device of claim 9 , wherein the at least one low dimensional portion comprises 17 points along its length.
13. A cartridge set comprising multiple printer cartridges, each cartridge comprising:
a memory device including a circuit to output a number of compressed multi-dimensional color tables to a printer to convert a digital input color model into an output color model for physical printing;
an interface to transmit the number of compressed multi-dimensional color tables to the printer; and
the number of compressed multi-dimensional color tables, wherein each compressed multi-dimensional color table comprises:
at least one shared low dimensional portion having a number of dimensions that is less than the number of dimensions of the compressed multi-dimensional color table, the at least one shared low dimensional portion including color transformation information at a first resolution, wherein the at least one shared low dimensional portion is shared by multiple compressed multi-dimensional color tables associated with the same color; and
a number of remaining portions, which are those portions which are not defined by the at least one shared low dimensional portion, the remaining portions including color transformation information at a second resolution, wherein the number of remaining portions are different than remaining portions of different compressed multi-dimensional color tables;
wherein:
the at least one shared low dimensional portion and the number of remaining portions are to be interpolated to generate a high resolution uncompressed multi-dimensional color table, the high resolution being at least as great as the first resolution;
the first resolution is greater than the second resolution.
14. The cartridge set of claim 13 , wherein the multiple printer cartridges comprise:
a black ink cartridge; and
a cyan, magenta, and yellow ink cartridge.
15. The cartridge set of claim 13 , wherein the multiple printer cartridges comprise:
a black ink cartridge;
a cyan ink cartridge;
a magenta ink cartridge; and
a yellow ink cartridge.
16. The cartridge set of claim 13 , further comprising a controller to control distribution of output media.
17. A memory device comprising:
a circuit to output a number of compressed multi-dimensional color tables to a printer to convert a digital input color model into an output color model for physical printing; and
the number of compressed multi-dimensional color tables, wherein each compressed multi-dimensional color table comprises:
a first number of shared nodes along a low dimensional portion having a number of dimensions that is less than the number of dimensions of the compressed multi-dimensional color table, the first number of nodes including color transformation information at a first resolution, wherein the first number of shared nodes are shared by multiple compressed multi-dimensional color tables associated with the same color;
a second number of nodes along a number of remaining portions, which are those portions which are not defined by the at least one low dimensional portion, the second number of nodes including color transformation information at a second resolution; and
a third number of nodes along an intermediate portion of each multi-dimensional color table including color transformation information at a third resolution, in which the remaining portions comprise those portions not comprising the low dimensional portion and the intermediate portion;
wherein:
the first number of shared nodes, the second number of nodes, and the third number of nodes are to be interpolated to generate a high resolution uncompressed multi-dimensional color table, the high resolution being at least as great as the first resolution;
the first resolution is greater than the second resolution.
18. The memory device of claim 17 , wherein the compressed multi-dimensional color tables correspond to a particular media color.
19. The memory device of claim 17 , wherein the compressed multi-dimensional color tables correspond to a particular output quality.
20. The memory device of claim 17 , wherein the compressed multi-dimensional color tables correspond to a particular input device.