| 1 |
A device profile for describing properties of a device in a digital image reproduction system to capture, transform or render an image, said device profile comprising: first data for describing a device dependent transformation of color
information content of the image to a device independent color space; and second data for describing a device dependent transformation of spatial information content of the image in said device independent color space.
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| 2 |
The device profile of claim 1 wherein, for said device, the second data is represented by a first characteristic function describing added noise characteristics and a second characteristic function describing image signal transform
characteristics.
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| 3 |
The device profile of claim 2, wherein said added noise characteristics are represented by a Wiener Noise Spectrum and said image signal transform characteristics are represented by a Modulation Transfer Function.
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| 4 |
The device profile of claim 1, wherein the second data is represented by characteristic functions describing a gray level dependent additive noise in said device.
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| 5 |
The device profile of claim 1, wherein said gray level dependent additive noise is represented by Wiener Noise Spectra.
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| 6 |
The device profile of claim 5, wherein said gray level dependent additive noise is spatially dependent.
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| 9 |
The device profile of claim 1 wherein, for said device, the second data is generated through use of spatial stimuli and device response characteristic functions.
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| 10 |
A method of generating a device profile that describes properties of a device in a digital image reproduction system for capturing, transforming or rendering an image, said method comprising: generating first data for describing a device
dependent transformation of color information content of the image to a device independent color space through use of measured chromatic stimuli and device response characteristic functions; generating second data for describing a device dependent transformation of spatial information content of the image in said device independent color space through use of spatial stimuli and device response characteristic functions; and combining said first and second data into the device profile.
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| 11 |
The method of claim 10 wherein, for said device: said second data is represented by a first characteristic function describing added noise characteristics and a second characteristic function describing image signal transform characteristics.
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| 12 |
The method of claim 11 wherein, for said device, said added noise characteristics are represented by a Wiener Noise Spectrum and said image signal transform characteristics are represented by a Modulation Transfer Function.
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| 13 |
The method of claim 11 wherein the second data is represented by characteristic functions describing a gray level dependent additive noise in said device.
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| 14 |
The method of claim 11, wherein said gray level dependent additive noise is represented by Wiener Noise Spectra.
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| 15 |
The method of claim 13, wherein said gray level dependent additive noise is spatially dependent.
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| 26 |
A device profile for describing properties of a device in a digital image reproduction system to capture, transform or render an image, said device profile comprising data for describing a device dependent transformation of spatial information
content of the image to a device independent color space, wherein through use of spatial stimuli and device response for said device, said data is represented by spatial characteristic functions.
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| 27 |
The device profile of claim 26 wherein, for said device, the data is represented by a first characteristic function describing added noise characteristics and a second characteristic function describing image signal transform characteristics.
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Invalid (101)
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| 28 |
The device profile of claim 27, wherein said added noise characteristics are represented by a Wiener Noise Spectrum and said image signal transform characteristics are represented by a Modulation Transfer Function.
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Invalid (101)
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| 29 |
The device profile of claim 26, wherein the data is represented by characteristic functions describing a gray level dependent additive noise in said device.
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Invalid (101)
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| 30 |
The device profile of claim 26, wherein said gray level dependent additive noise is represented by Wiener Noise Spectra.
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Invalid (101)
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| 31 |
The device profile of claim 30, wherein said gray level dependent additive noise is spatially dependent.
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Invalid (101)
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