Image display apparatus and image processing method
An image display device and an image processing technology, which are applied in the field of image processing, can solve the problems of inability to perform proper position adjustment, increased burden, missing image information, etc., achieve efficient size change processing and position adjustment processing, and reduce the burden.
Inactive Publication Date: 2011-09-21
SEIKO EPSON CORP
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Problems solved by technology
[0007] However, in the technologies described in Patent Document 1 and Patent Document 2, two image processing devices are used to perform image size change processing, and there is a problem that, for example, when resizing an image horizontally or vertically, When adjusting the position of the movement, if the image processing device on the previous stage is used for position adjustment, the image processing device on the previous stage will perform image size change processing and position adjustment processing. and expensive image processing device
In addition, if the post-side image processing device is used for position adjustment, although the burden on the front-stage side image processing device can be reduced, when the image position is adjusted, the original necessary image information will be lost. , thus having the problem of not being able to perform proper position adjustment
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[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0035] figure 1It is a schematic configuration diagram showing an embodiment of a projector as an image display device according to the present invention. In the present embodiment, the projector 1 has a receiver 2 to which image information is input, and the receiver 2 discriminates the type of the input image information and, if necessary, converts the image information input as an analog signal into a digital signal. The image information is output to the front-stage image processing device 3.
[0036] The front-stage image processing device 3 performs resizing processing on the image information transmitted from the receiver 2 so that it becomes a predetermined size. In the image information transmitted from the receiver 2, there are various image information such as video image information, DVD image information, Blu-ray Disc image information, or terrestrial dig...
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The invention relates to an image display apparatus and an image processing method, both capable of efficiently performing size change processing and position adjustment processing on an image using two image processing devices but without using an expensive image processing device. The image display apparatus includes: a primary image processing device that performs size change processing for an input image; a secondary image processing device that performs image position adjustment processing for the input image processed by the primary image processing device, wherein the secondary image processing device performs position adjustment processing, and outputs position information representing the display position of the input image to the primary image processing device after the position adjustment processing on the input image is completed, and the primary image processing device reflects the position information outputted from the secondary image processing device to perform position adjustment on the input image information.
Description
technical field [0001] The present invention relates to an image display device and an image processing method, and more particularly, to an image display device and an image processing method capable of efficiently performing position adjustment processing and resizing processing of an image projected by a projector. Background technique [0002] Generally, in an image display device such as a projector, image processing for changing the size of image information input in various sizes to a predetermined size is performed. In addition, in recent years, when such resizing processing is performed, a technique of performing image processing of an input image using a plurality of image processing devices has been disclosed. [0003] As such a technique, for example, there is disclosed a first resolution conversion that converts an input image into a fixed resolution converted image having a resolution at least equal to a resolution in the horizontal direction among fixed resolu...
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Login to View More IPC IPC(8): H04N5/74H04N9/31
CPCG09G2340/0464H04N9/3197G09G2340/0407H04N9/3188G09G3/001G06T3/40H04N1/393G09G5/00
Inventor 塚越真一
Owner SEIKO EPSON CORP