Method and system for predictive scaling of colour mapped images
First Claim
1. A method for determining a scaled colour map of a scaled image obtained by scaling an original image, implemented by a computing device having a processor, the method comprising:
- obtaining an original colour map of the original image; and
transforming the original colour map into the scaled colour map using the original colour map and the original image only, comprising;
provided Nmin<
N<
Nmax, forming the scaled colour map, comprising;
(iv-1) selecting a sub-set of colours in the original colour map;
(iv-2) increasing a number of colours in the selected sub-set, thus forming a resulting sub-set of colours; and
(iv-3) adding the resulting sub-set with increased number of colours to the original colour map, comprising determining the increased number of colours in the resulting sub-set of colours as
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Accused Products
Abstract
A method for determining a scaled color map of a scaled image is described using the transformation of the original color map and the original image only, independently of the scaled image. A number of colors N in the original color map is determined; and provided N>Nmax, all colors in the original color map are reused in the scaled color map. If N<Nmin, the number of colors in the original color map is increased. Otherwise, the scaled color map is formed including: selecting a sub-set of colors in the original color map; increasing a number of colors in the selected sub-set; adding the resulting sub-set with increased number of colors to the original color map; and removing duplicate colors, wherein Nmin and Nmax are respective predetermined minimum and maximum thresholds for a number of colors in the original color map. A corresponding system is also provided.
24 Citations
19 Claims
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1. A method for determining a scaled colour map of a scaled image obtained by scaling an original image, implemented by a computing device having a processor, the method comprising:
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obtaining an original colour map of the original image; and transforming the original colour map into the scaled colour map using the original colour map and the original image only, comprising; provided Nmin<
N<
Nmax, forming the scaled colour map, comprising;(iv-1) selecting a sub-set of colours in the original colour map; (iv-2) increasing a number of colours in the selected sub-set, thus forming a resulting sub-set of colours; and (iv-3) adding the resulting sub-set with increased number of colours to the original colour map, comprising determining the increased number of colours in the resulting sub-set of colours as - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11)
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7. A method for determining a scaled colour map of a scaled image obtained by scaling an original image, implemented by a computing device having a processor, the method comprising:
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obtaining an original colour map of the original image; and transforming the original colour map into the scaled colour map using the original colour map and the original image only, comprising; provided Nmin<
N<
Nmax, forming the scaled colour map, comprising;(iv-1) selecting a sub-set of colours in the original colour map, comprising determining a number of colours Ms in the selected subset of colours as follows
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12. A system for determining a scaled colour map of a scaled image obtained by scaling an original image, the system comprising:
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a processor and a non-transitory computer readable storage medium having computer readable instructions stored thereon for execution by the processor, causing the processor to; obtain an original colour map of the original image; and transform the original colour map into the scaled colour map using the original colour map and the original image only, comprising; provided Nmin<
N<
Nmax, forming the scaled colour map;(iv-1) select a sub-set of colours in the original colour map; (iv-2) increase a number of colours in the selected sub-set, thus forming a resulting sub-set of colours; and (iv-3) add the resulting sub-set with increased number of colours to the original colour map, comprising determining the increased number of colours in the resulting sub-set of colours as - View Dependent Claims (13, 14, 15, 16, 17, 19)
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18. A system for determining a scaled colour map of a scaled image obtained by scaling an original image, the system comprising:
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a processor and a non-transitory computer readable storage medium having computer readable instructions stored thereon for execution by the processor, causing the processor to; obtain an original colour map of the original image; and transform the original colour map into the scaled colour map using the original colour map and the original image only, comprising; provided Nmin<
N<
Nmax, form the scaled colour map, comprising causing the computer readable instructions to select a sub-set of colours in the original colour map and to determine a number of colours Ms in the selected subset of colours as
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Specification