发明名称 |
Image processing circuit and method thereof |
摘要 |
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. |
申请公布号 |
US8830402(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201314035966 |
申请日期 |
2013.09.25 |
申请人 |
Novatek Microelectronics Corp. |
发明人 |
Lin Teng-Yi;Chen Wei-Fu;Lo Wei-Jen |
分类号 |
H04N9/74 |
主分类号 |
H04N9/74 |
代理机构 |
Jianq Chyun IP Office |
代理人 |
Jianq Chyun IP Office |
主权项 |
1. An image processing circuit for processing an input image, the image processing circuit comprising:
a first scaling circuit, for increasing a resolution along a first direction of the input image to generate a first enlarged image; a first sharpness circuit, for sharpening the first enlarged image along a second direction to generate a first sharpened image; a second scaling circuit, coupled to the first sharpness circuit, for increasing a resolution along a third direction of the first sharpened image to generate a second enlarged image; and a second sharpness circuit, coupled to the second scaling circuit, for sharpening the second enlarged image along a fourth direction to generate a second sharpened image. |
地址 |
Hsinchu TW |