US 2010/0061660 A1Published application

Display device and image resizing method thereof

AssigneeHon Hai Precision Industry Co., Ltd.

InventorsWen-Hsiung Lin, Ching-I Lu

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Abstract

A display device includes an image reading module, three processing module, and a pixel generating module. The image reading module reads pixel data of an original image and a predetermined destination image format (hereafter destination format). A first processing module calculates a horizontal shift value and a vertical shift value. A second processing module converts ratios of a length of the original image to a length of the destination format and a height of the original image to a height of the destination format to integer values. A third processing module determines which pixel in the original image to copy to each pixel position in the destination format. A pixel generating module copies pixels in the original image to corresponding pixels positions in the destination format.

Claims14

Dependent claims

A display device, for resizing an original image according to a predetermined destination image format, comprising:

a register, for calculating;
an image reading module, for reading pixel data of the original image and the predetermined destination image format;
a first processing module, for calculating a horizontal shift value and a vertical shift value, used for resizing the original image to the predetermined destination image format, according to the pixel data and a size of the register;
a second processing module, for converting ratios of a length of the original image to a length of the predetermined destination image format and a height of the original image to a height of the predetermined destination image format to integer values, used for resizing the original image to the predetermined destination image format, according to the pixel data, the horizontal shift value and the vertical shift value;
a third processing module, for determining which pixel in the original image to copy to each pixel position in the predetermined destination image format according to the pixel data, the horizontal shift value, the vertical shift value and the integer values from ratios of the length of the original image to the length of the predetermined destination image format and the height of the original image to the height of the predetermined destination image format;
and
a pixel generating module, for copying pixels in the original image to corresponding pixel positions in the predetermined destination image format to form a destination image.

4 more elements

An image resizing method employed by a display device for resizing an original image according to a predetermined destination image format, the method comprising:

reading pixel data of the original image and the predetermined destination image format;
calculating a horizontal shift value and a vertical shift value, used for resizing the original image to the predetermined destination image format, according to the pixel data and a size of a register of the display device;
converting ratios of a length of the original image to a length of the predetermined destination image format and a height of the original image to a height of the predetermined destination image format to integer values, used for resizing the original image to the predetermined destination image format, according to the pixel data, the horizontal shift value and the vertical shift value;
determining which pixel in the original image to copy to each pixel position in the predetermined destination image format according to the pixel data, the horizontal shift value, the vertical shift value and the integer value from ratios of the length of the original image to the length of the predetermined destination image format and the height of the original image to the height of the predetermined destination image format;
and
copying pixels in the original image to corresponding pixel positions in the predetermined destination image format to form a destination image.

3 more elements

Dependencies are inferred from the claim text.