| Patent application number | Description | Published |
|---|
| 20100289961 | IMAGE PROCESSING CIRCUIT AND IMAGE PROCESSING METHOD THEREOF - An image processing circuit and an image processing method thereof are disclosed. A difference value adaptor of the image processing circuit produces a weighing value and a flag value corresponding to the pixel according to the pixel difference value of each pixel of an input video signal. The image processing circuit judges which area among a first area, a second area and a third area the pixel difference value of each pixel falls in according to the flag value. The image processing circuit performs a low-pass filtering processing on the pixel having the pixel difference value falling in the first area, performs a high-pass filtering processing on the pixel having the pixel difference value falling in the second area and performs a luminance transient improvement processing (LTI processing) on the pixel having the pixel difference value falling in the third area. | 11-18-2010 |
| 20100295996 | CIRCUIT AND METHOD FOR IMAGE PROCESSING - A circuit and a method for image processing are provided. The image processing circuit has an adaptor and a sharpening circuit. The adaptor has a processing unit and a weight generator. The processing unit receives an input video signal, and the input video signal has information of a plurality of pixels. The processing unit processes the input video signal to calculate a color difference value of a target pixel of the pixels. The weight generator generates a weighting signal according to the color difference value. The sharpening circuit performs a sharpening operation on the input video signal according to the weighting signal to generate a sharpened video signal. | 11-25-2010 |
| 20100303376 | CIRCUIT AND METHOD FOR PROCESSING IMAGE - A circuit and a method for processing an image are provided. The circuit includes a weighting circuit and a sharpening circuit. The weighting circuit includes at least two adapters and a weight decider. The weighting circuit receives an input image. Each of the adapters respectively generates a weight according to an image property of the input image. The weight decider performs a logical calculation according to the weights generated by the adapters to generate a total weight. The sharpening circuit performs an image sharpening process on the input image according to the total weight to generate an output image. | 12-02-2010 |
| 20100315556 | IMAGE PROCESSING CIRCUIT AND METHOD THEREOF - An image processing circuit and a method thereof are provided herein. The image processing circuit has a first scaling circuit, a plurality of line buffers, a first sharpness circuit, a second scaling circuit, and a second sharpness circuit. The first scaling circuit enlarges an input image along a first direction to generate a first enlarged image. The line buffers temporarily store the pixel values of a plurality of pixel rows of the first enlarged image. The first sharpness circuit vertically sharpens the first enlarged image to generate a first sharpened image. The second scaling circuit enlarges the first sharpened image along a second direction to generate a second enlarged image. The second sharpness circuit horizontally sharpens the second enlarged image to generate a second sharpened image. Accordingly, it is possible to use the line buffers having shorter data lengths to perform the vertical sharpening. | 12-16-2010 |
| 20140028919 | IMAGE PROCESSING CIRCUIT AND METHOD THEREOF - An image processing circuit and a method thereof are provided herein. The image processing circuit has a first scaling circuit, one or more line buffers, a first sharpness circuit, a second scaling circuit, and a second sharpness circuit. The first scaling circuit enlarges an input image along a first direction to generate a first enlarged image. The one or more line buffers temporarily store the pixel values of a plurality of pixel rows of the first enlarged image. The first sharpness circuit vertically sharpens the first enlarged image to generate a first sharpened image. The second scaling circuit enlarges the first sharpened image along a second direction to generate a second enlarged image. The second sharpness circuit horizontally sharpens the second enlarged image to generate a second sharpened image. Accordingly, it is possible to use the one or more line buffers having shorter data lengths to perform the vertical sharpening. | 01-30-2014 |
| 20140333838 | IMAGE PROCESSING METHOD - An image processing method for processing an input image is provided. The image processing method includes: performing a plurality of first imaging processing operations on the input image to generate a first image; and performing a plurality of second imaging processing operations on the first image. Each of the first imaging processing operations is along a first direction, and the plurality of first imaging processing operations include a first scaling operation for increasing resolution. Each of the second imaging processing operations is along a second direction different from the first direction, and the plurality of second imaging processing operations include a second scaling operation for increasing resolution. | 11-13-2014 |
