Correction curve generating method, image processing method, image display unit, and storage medium
First Claim
1. A method for generating a correction curve for correcting image data inputted to an image display unit, taking into account characteristics of a projection plane on which an output from said image display unit is projected, said method comprising:
- a measuring step of measuring a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane; and
a correction curve generating step of generating a correction curve for correcting the inputted image data so as to eliminate a difference between the measured reflection characteristic for each color component reflected by the predetermined projection plane and a reflection characteristic for each color component reflected by a reference projection plane.
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Abstract
In an image display unit which applies a desired image processing to inputted image data and then displays the processed image, reflection characteristics for each color component of an output provided from the image display unit and reflected by a predetermined projection plane and by a reference projection plane are measured. Further, a correction curve is generated for correcting the inputted image data so as to eliminate a difference between the measured reflection characteristics for each color component reflected by the predetermined projection plane and by the reference projection plane. With the correction curve, an image processing is performed for the image data inputted to the image display unit, taking into account the characteristic of the projection plane on which an output from the image display unit is projected.
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Citations
32 Claims
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1. A method for generating a correction curve for correcting image data inputted to an image display unit, taking into account characteristics of a projection plane on which an output from said image display unit is projected, said method comprising:
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a measuring step of measuring a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane; and a correction curve generating step of generating a correction curve for correcting the inputted image data so as to eliminate a difference between the measured reflection characteristic for each color component reflected by the predetermined projection plane and a reflection characteristic for each color component reflected by a reference projection plane.
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- 2. An image processing method for image data inputted to an image display unit, taking into account characteristics of a projection plane with an output from said image display unit projected thereon, wherein said method corrects input image data by using a correction curve for eliminating a difference between a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane.
- 10. An image display unit for performing an image processing for an inputted image data, taking into account characteristics of a projection plane, wherein said image display unit corrects input image data by using a correction curve for eliminating a difference between a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane.
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11. An image display unit for performing an image processing for an inputted image data, taking into account characteristics of a projection plane, wherein the image display unit performs the image processing for the inputted data based on a correction curve, which is sequentially generated by sequentially repeating a method for generating the correction curve comprising:
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a measuring step of measuring a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane; and a correction curve generating step of generating a correction curve for correcting the inputted image data so as to eliminate a difference between the measured reflection characteristic for each color component reflected by the predetermined projection plane and a reflection characteristic for each color component reflected by a reference projection plane.
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13. An image display unit for performing an image processing for an inputted image data, taking into account characteristics of a projection plane, wherein the image display unit comprises a storage means for storing a plurality of correction curves, which are generated by repeating a method for generating the correction curve with respect to a plurality of projection plane, comprising:
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a measuring step of measuring a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane; and a correction curve generating step of generating a correction curve for correcting the inputted image data so as to eliminate a difference between the measured reflection characteristic for each color component reflected by the predetermined projection plane and a reflection characteristic for each color component reflected by a reference projection plane.
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- 20. A computer-readable medium having a program of instructions for execution by the computer to perform an image processing for image data inputted to an image display unit, taking into account characteristics of a projection plane with an output from said image display unit projected thereon, wherein said image processing corrects input image data by using a correction curve fox eliminating a difference between a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane.
- 28. A computer-readable medium storing a correction curve for performing an image processing for image data inputted to an image display unit, taking into account characteristics of a projection plane with an output from said image display unit projected thereon, wherein said correction curve eliminates a difference between a reflection characteristic for each color component of an output provided from said image display unit and reflected by a predetermined projection plane and a reflection characteristic for each color component of the output provided from said image display and reflected by a reference projection plane.
Specification