Gamut restriction of color image
First Claim
1. A computer-based method for adjusting color parameters for an image to fit within a color gamut, comprising:
- (a) generating a first color representation of the image using a first algorithm which restricts the first color representation of the image to the color gamut, the first color representation representing any white in the image as white;
(b) generating a second color representation of the image using a second algorithm which restricts the second color representation of the image to the color gamut, the second color representation being different than the first color representation and representing any white in the image as white; and
(c) combining the first color representation and the second color representation according to a combination ratio selected by a user to generate a resulting color representation of the image that is restricted to the color gamut.
1 Assignment
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Accused Products
Abstract
A user selects an optimum balance between two different methods for clipping or compressing the colors of an image so that they all fall within the color gamut of an output device. By choosing a balance between two different clipping or compression methods, which are typically implemented with different color models, the user can quickly and easily adjust the colors of an image to produce the most desired image. If a color monitor can display all or nearly all of the colors of the output device, the image can be displayed on a color monitor and the user can very quickly choose between alternative adjustments of the balance between the two clippings or compression methods.
80 Citations
67 Claims
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1. A computer-based method for adjusting color parameters for an image to fit within a color gamut, comprising:
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(a) generating a first color representation of the image using a first algorithm which restricts the first color representation of the image to the color gamut, the first color representation representing any white in the image as white; (b) generating a second color representation of the image using a second algorithm which restricts the second color representation of the image to the color gamut, the second color representation being different than the first color representation and representing any white in the image as white; and (c) combining the first color representation and the second color representation according to a combination ratio selected by a user to generate a resulting color representation of the image that is restricted to the color gamut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 35)
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8. A method for allowing a user to adjust the appearance of an image to fall within a color gamut, comprising:
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(a) receiving the color gamut and the image; (b) generating a first color representation of the image using a first algorithm which restricts the first color representation of the image to the color gamut and which causes the first color representation to represent any white in the image as white; (c) generating a second color representation of the image using a second algorithm which restricts the second color representation of the image to the color gamut and which causes the second color representation to represent any white in the image as white, the second algorithm being different than the first algorithm; (d) presenting to the user a control for adjusting a ratio balance between the first color representation and the second color representation; and (e) generating a resulting color representation of the image that is restricted to the color gamut by combining the first and second color representations based on the ratio balance selected by the user. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device for adjusting the appearance of an image based on the color gamut of a presentation device comprising:
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(a) an electronic image input port; (b) a processor for generating a first color representation of the image using a first method which restricts the first color representation to the color gamut and for generating a second color representation of the image using a second method which restricts the second color representation to the color gamut, the second color representation being different than the first color representation, the first and second color representations each representing any white in the image as white; and (c) a control for adjusting a balance between the first and second color representations; and (d) an image generator which generates the image restricted to the color gamut based on the balance between the first and second color representations as selected by a user via the control. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A computer-readable medium containing a computer program which, when run on a computer, performs a method for adjusting color parameters for an image to fit within a color gamut, comprising the steps of:
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(a) generating a first color representation of the image using a first algorithm which restricts the first color representation of the image to the color gamut, the first color representation representing any white in the image as white; (b) generating a second color representation of the image using a second algorithm which restricts the second color representation of the image to the color gamut, the second color representation being different than the first color representation and representing any white in the image as white; and (c) combining the first color representation and the second color representation according to a combination ratio selected by a user to generate a resulting color representation of the image that is restricted to the color gamut. - View Dependent Claims (22, 23, 24, 25, 26, 27, 36)
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28. A memory containing a computer program which, when run on a computer, allows a user to adjust the appearance of an image to fall within a color gamut, said program comprising steps for:
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(a) receiving the color gamut and the image; (b) generating a first color representation of the image using a first algorithm which restricts the first color representation to the color gamut and which causes the first color representation to represent any white in the image as white; (c) generating a second color representation of the image using a second algorithm which restricts the second color representation to the color gamut and which causes the second representation to represent any white in the image as white, the second algorithm being different than the first algorithm; (d) presenting to the user a control for adjusting a ratio balance between the first color representation and the second color representation; and (e) generating a resulting color representation of the image that is restricted to the color gamut by combining the first and second color representations based on the ratio balance selected by the user. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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37. A method for adjusting an image such that colors in the image are within a color gamut, the method comprising:
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generating a first color representation of the image that is restricted to the color gamut; generating a second color representation of the image that is restricted to the color gamut, the second color representation being different than the first color representation; generating a third color representation of the image that is restricted to the color gamut, the third color representation being different than the first and second color representations; and combining the first, second, and third color representations according to a combination ratio to generate a resulting color representation of the image that is restricted to the color gamut. - View Dependent Claims (38, 39, 40, 41, 42)
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43. An image processing circuit for preparing an image for presentation by a device having a color gamut, the image processing circuit comprising:
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a control for adjusting a balance between first, second, and third color representations of the image; and a processor coupled to the control and operable to, generate the first color representation using an algorithm that restricts the first color representation to the color gamut, generate the second color representation of the image using a second algorithm that restricts the second color representation to the color gamut, the second algorithm being different than the first algorithm, generate the third color representation of the image using a third algorithm that restricts the third color representation to the color gamut, the third algorithm being different than the first and second algorithms, and generate the image restricted to the color gamut based on the balance between the first, second, and third color representations as selected by a user via the control. - View Dependent Claims (44, 45, 46, 47)
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48. A method for adjusting an image such that colors in the image are within a color gamut, the method comprising:
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generating a first color representation of the image using a first algorithm that restricts the first color representation to the color gamut by compressing image colors that are outside of the color gamut such that the compressed image colors are within the color gamut; generating a second color representation of the image using a second algorithm that restricts the second color representation to the color gamut, the second algorithm being different than the first algorithm; and combining the first and second color representations according to a combination ratio to generate a resulting color representation of the image that is restricted to the color gamut. - View Dependent Claims (49, 50, 51, 52, 53)
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54. An image processing circuit for preparing an image for presentation by a device having a color gamut, the image processing circuit comprising:
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a control for adjusting a balance between first and second color representations of the image; and a processor coupled to the control and operable to, generate the first color representation of the image restricted to the color gamut by compressing image colors that are outside of the color gamut such that the compressed image colors are within the color gamut, generate the second color representation of the image restricted to the color gamut, the second color representation being different than the first color representation, and generate the image restricted to the color gamut based on the balance between the first and second color representations as selected by a user via the control. - View Dependent Claims (55, 56, 57, 58)
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59. A method for adjusting an image such that colors in the image are within a color gamut, the method comprising:
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generating a first color representation of the image by converting the image into a first color model, the first color representation being restricted to the color gamut; generating a second color representation of the image by converting the image into a second color model that is different than the first color model, the second color representation being restricted to the color gamut and being different than the first color representation; and combining the first and second color representations according to a combination ratio to generate a resulting color representation of the image that is restricted to the color gamut. - View Dependent Claims (60, 61, 62, 63)
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64. An image processing circuit for preparing an image for presentation by a device having a color gamut, the image processing circuit comprising:
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a control for adjusting a balance between first and second color representations of the image; and a processor coupled to the control and operable to, generate the first color representation of the image by converting the image into a first color model, the first color representation being restricted to the color gamut, generate the second color representation of the image by converting the image into a second color model that is different than the first color model, the second color representation being restricted to the color gamut and being different than the first color representation, and generate the image restricted to the color gamut based on the balance between the first and second color representations as selected by a user via the control. - View Dependent Claims (65, 66, 67)
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Specification