Image adjusting apparatus and method

Abstract

The invention discloses an image adjusting apparatus and method. The image adjusting apparatus comprises a first resolution detecting module, a second resolution detecting module, an automatic zoom factor generating module, an automatic zoom module, and an image rotating module, wherein the first resolution detecting module detects the first signal of the input image input by an image input apparatus to generate the second horizontal resolution and the second vertical resolution; the automatic zoom factor generating module, according to the first horizontal resolution, the first vertical resolution, the second horizontal resolution, and the second vertical resolution, generates automatic zoom factors; and the automatic zoom module adjusts the size of the input image according to the automatic zoom factors.

Description

technical field [0001] The present invention relates to image adjustment, in particular to an image adjustment device and an image adjustment method capable of automatically rotating and scaling images dynamically. Background technique [0002] In recent years, with the continuous evolution of science and technology, image processing technology has also developed quite rapidly. For example, image scaling and image rotation functions in image processing technology have already been widely used in various image display devices (such as liquid crystal displays, plasma displays, etc.). [0003] As far as the zoom function of the image is concerned, since the resolution of the image input by the image input device may not be completely consistent with the resolution of the image displayed by the image display device, the image display device often needs to use an image scaler (scaler). Necessary zoom processing is performed on the image input by the image input device, so that t...

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Problems solved by technology

[0005] Generally speaking, most of the current image adjustment programs are handed over to the display card or central processing unit (CPU) for calculation and output. said that there are still no simple and low-cost solutions available

[0006] Furthermore, current image scalers still have considerable limitations when it comes to image scaling

For example, in addition to the need to fix the resolution of the image display device, the user must also set the image scaling factor in advance for the image scaler to perform image scaling, such as described in the conventional patent (Patent No. US7551231B2) It is necessary to fix the screen resolution and set the zoom factor in advance, that is, the current image resizer still cannot truly achieve the function of automatically rotating and zooming the image dynamically

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