Image Processing Method and Associated Apparatus for Rendering Three-dimensional Effect Using Two-dimensional Image
First Claim
1. An image processing method, for rendering a three-dimensional (3D) effect by transforming a first quadrilateral image to a second quadrilateral image, at least one of the first and second quadrilateral images being a trapezoidal image, the method comprising:
- providing the first quadrilateral image;
generating coordinates of four vertices associated with the second quadrilateral image according to the first quadrilateral image and the 3D effect;
determining a relative height and a relative width according to a height and a width of the first quadrilateral image, and the coordinates of the four vertices; and
generating a plurality of pixel values of the second quadrilateral image with reference to a plurality of pixel values of the first quadrilateral image according to the relative height, and the relative width.
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Abstract
An image processing method for rendering a three-dimensional by transforming a first quadrilateral image to a second quadrilateral image is provided, with at least one of the first and second quadrilateral images being a trapezoidal image. The image processing method includes providing the first quadrilateral image, generating coordinates of four vertices associated with the second quadrilateral image according to the first quadrilateral image and the three-dimensional effect; determining a relative height and a relative width according to a height and a width of the first quadrilateral image and the coordinates of the four vertices; and generating a plurality of pixel values of the second quadrilateral image with reference to a plurality of pixel values of the first quadrilateral image according to the relative height and the relative width.
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Citations
16 Claims
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1. An image processing method, for rendering a three-dimensional (3D) effect by transforming a first quadrilateral image to a second quadrilateral image, at least one of the first and second quadrilateral images being a trapezoidal image, the method comprising:
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providing the first quadrilateral image; generating coordinates of four vertices associated with the second quadrilateral image according to the first quadrilateral image and the 3D effect; determining a relative height and a relative width according to a height and a width of the first quadrilateral image, and the coordinates of the four vertices; and generating a plurality of pixel values of the second quadrilateral image with reference to a plurality of pixel values of the first quadrilateral image according to the relative height, and the relative width. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image processing apparatus, for rendering a 3D effect by transforming a first quadrilateral image to a second quadrilateral image, at least one of the first and second quadrilateral images being a trapezoidal image, the apparatus comprising:
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a target image determining unit, for generating coordinates of four vertices associated with the second quadrilateral image according to the first quadrilateral image and the 3D effect; a pixel determining unit, for determining a relative height and a relative width according to a height and width of the first quadrilateral image and the coordinates of the four vertices, and accordingly determining a corresponding relationship between a plurality of pixels of the first quadrilateral image and a plurality of pixels of the second quadrilateral image; and a calculation unit, for generating a plurality of pixel values of the second quadrilateral image with reference to a plurality of pixel values of the first quadrilateral image according to the corresponding relationship. - View Dependent Claims (11, 12, 13, 14, 15)
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16. The apparatus as claimed in claim 16, wherein the first quadrilateral image has different brightness from that of the second quadrilateral image.
Specification