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Image processing device, image processing method, and display device

An image processing device and image technology, applied in image data processing, image memory management, image communication, etc., can solve problems such as memory access bandwidth tension, and achieve the effects of suppressing cost increase, reducing load, and improving utilization efficiency

Inactive Publication Date: 2019-10-01
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, Patent Document 1 has a problem in that since the process of reading out a plurality of pixel data from the memory to generate one pixel data is performed on a large number of pixels, there is a possibility that the memory access bandwidth becomes short

Method used

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  • Image processing device, image processing method, and display device
  • Image processing device, image processing method, and display device
  • Image processing device, image processing method, and display device

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no. 1 Embodiment approach

[0050] First, the first embodiment will be described.

[0051] figure 1 It is a block diagram showing the configuration of the projector 1 (image processing device, display device) to which the first embodiment of the present invention is applied.

[0052] The image supply device 2 is connected to a projector 1 as an external device. The image supply device 2 outputs input image data D1 to the projector 1 , and the projector 1 projects a projection image on the screen SC based on the input image data D1 input from the image supply device 2 . The projection of the projected image by the projector 1 is an example of the display of the image by the display device.

[0053] The input image data D1 input from the image supply device 2 is image data conforming to a predetermined standard. The content of the input image data D1 may be a still image or a dynamic image, and may also be accompanied by an audio signal or audio data.

[0054] The image supply device 2 is a so-called i...

no. 2 Embodiment approach

[0176] Next, a second embodiment will be described.

[0177] The projector 1 of the second embodiment differs from the projector 1 of the first embodiment in the rotation processing of the input image NG in the second rotation processing unit 252 of the image processing unit 25 . In the description of the second embodiment, the same components as those of the projector 1 shown in the first embodiment are given the same reference numerals, and detailed descriptions are omitted.

[0178] Figure 16 It is a block diagram showing the configuration of the second rotation processing unit 252 in the second embodiment, and also shows the frame memory 27 for easy understanding.

[0179] Such as Figure 16 As shown, the second rotation processing unit 252 includes a data division unit 2521 , a data rotation unit 2522 , a data writing unit 2523 , a data reading unit 2524 and a data shaping unit 2525 .

[0180] The data dividing unit 2521 includes a buffer 25A1. The buffer 25A1 stores...

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Abstract

An image processing device, an image processing method, and a display device are provided, which make it possible to perform a process for rotating an image while suppressing an increase in cost and improving the utilization efficiency of a memory access bandwidth. A projector includes a first rotation processing section 251 adapted to perform a process of rotating an input image with a designatedangle to output a first processed image, and a second rotation processing section 252 adapted to perform a process of rotating the first processed image output by the first rotation processing section 251 with an angle designated by 90 degrees to output a second processed image.

Description

technical field [0001] The present invention relates to an image processing device, an image processing method, and a display device. Background technique [0002] Conventionally, there is known a device that executes image processing for rotating an image (for example, refer to Patent Document 1). Patent Document 1 discloses a device that stores an image before rotation in a buffer, reads out required pixel data from the buffer, generates pixel data for each pixel constituting the image after rotation, and thereby executes using Image processing for image rotation. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2015-201677 [0004] However, Patent Document 1 has a problem in that since a process of reading a plurality of pixel data from a memory to generate one piece of pixel data is performed on a large number of pixels, there is a possibility that memory access bandwidth may be limited. [0005] Therefore, an object of the present invention is to enable proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/387H04N5/262
CPCH04N1/3877H04N5/2628G06T1/60G06T3/606
Inventor 水仓佑辅
Owner SEIKO EPSON CORP
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