Image processing apparatus and image processing method
AssigneeChunghwa Picture Tubee, Ltd.
InventorsYu-Hung Li, Chien-Hung Chen
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Abstract
An image processing apparatus and an image processing method are provided. When a display apparatus is in the 3D display mode, a mode-switching unit adjusts the way to generate a vertical-count-value by counting every two rows of pixels and outputs the adjusted vertical-count-value. A dither unit outputs a carry value corresponding to the adjusted vertical-count-value. An adding unit adds the carry value and the surplus pixel bit together.
Claims11
An image processing method for adjusting a gray level of a pixel block of a display apparatus, an image being displayed on the pixel block by switching a plurality of frames, the image processing method comprising:
- acquiring a least significant bit and a surplus pixel bit from each pixel of the pixel block, wherein the surplus pixel bit is the bit in each pixel other than the least significant bit;
- determining whether the display apparatus is in a three-dimensional display mode or in a two-dimensional display mode according to a mode-switching signal;
- if the display apparatus is in the three-dimensional display mode, adjusting a way to generate a vertical-count-value by counting every two rows of pixels, wherein the least significant bit indicates a dither matrix group corresponding to the pixel block, and the vertical-count-value indicates a carry value of the dither matrix group corresponding to each row of pixels of the pixel block, wherein the vertical-count-value is a positive integer, the vertical-count-value corresponds to a position of the pixel block where the surplus pixel bit is generated from;
- outputting the carry value corresponding to the vertical-count-value;
- and
- adding the carry value of the dither matrix group corresponding to the vertical-count-value to the surplus pixel bit corresponding to the vertical-count-value.
An image processing apparatus for adjusting a gray level of a pixel block of a display apparatus, an image being displayed on the pixel block by switching a plurality of frames, the image processing apparatus comprising:
- a pixel block processing unit acquiring a least significant bit and a surplus pixel bit from each pixel of the pixel block, wherein the surplus pixel bit is the bit in each pixel other than the least significant bit;
- a counting unit generating a vertical-count-value according to the pixel block;
- a mode-switching unit coupled to the counting unit and determining whether the display apparatus is in a three-dimensional display mode or in a two-dimensional display mode according to a mode-switching signal, wherein if the display apparatus is in the three-dimensional display mode, the mode-switching unit adjusts a way to generate a vertical-count-value by counting every two rows of pixels and outputs the adjusted vertical-count-value, the least significant bit indicates a dither matrix group corresponding to the pixel block, and the vertical-count-value indicates a carry value of the dither matrix group corresponding to each row of pixels of the pixel block, wherein the vertical-count-value is a positive integer, the vertical-count-value corresponds to a position of the pixel block where the surplus pixel bit is generated from;
- a dither unit coupled to the pixel block processing unit, the counting unit, and the mode-switching unit, the dither unit outputting a carry value corresponding to the adjusted vertical-count-value;
- and
- an adding unit coupled to the pixel block processing unit and the dither unit, the adding unit adding the carry value of the dither matrix group corresponding to the vertical-count-value to the surplus pixel bit corresponding to the vertical-count-value.
Dependencies are inferred from the claim text.