Image processing method and device

An image processing and image technology, applied in the direction of image data processing, image memory management, image enhancement, etc., can solve the problems of difficult hardware implementation and poor effect, and achieve the effect of meeting real-time requirements, improving resolution, and achieving good effect.

Active Publication Date: 2019-09-06
XIDIAN UNIV
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Problems solved by technology

[0004] However, the above method has poor effect after most of the image processing, and the hardware implementation is relatively difficult.

Method used

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  • Image processing method and device
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  • Image processing method and device

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Embodiment 1

[0057] See figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , figure 1 It is a schematic flowchart of an image processing method provided by an embodiment of the present invention, figure 2 It is a schematic diagram of dividing an input image into blocks in an image processing method provided by an embodiment of the present invention, image 3 It is a schematic diagram of the 16-fold expansion of the input image after block division in an image processing method provided by the embodiment of the present invention, Figure 4 It is a schematic diagram of reserving a large-scale rotation image in an image processing method provided by an embodiment of the present invention, Figure 5 It is a schematic diagram of rotation mapping in an image processing method provided by an embodiment of the present invention, Image 6 It is a schematic diagram of the first mapping process in an image processing method provided by an embodiment ...

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Abstract

The invention discloses an image processing method and device. The image processing method is realized based on an FPGA, and comprises the steps: obtaining a plurality of sub-input images, and storingthe sub-input images in a first memory; according to the resolution of the input image, obtaining a sub-input image from the first memory, and carrying out blocking processing on the sub-input imagesto obtain sub-input image blocks; according to the magnification times and the rotation angles of the output images, performing rotation magnification and interpolation processing on the sub-input image blocks to obtain sub-output image blocks, and storing the sub-output image blocks in a second memory and a third memory; and according to the resolution of the output image, obtaining a sub-outputimage block from the second memory or the third memory to obtain an output image. According to the image processing method provided by the invention, the input image is blocked and is not limited tooperation on the whole input image, so that the image processing method is easier to realize in the FPGA, and rapid rotation amplification of the image can be realized, and the effect after rotation amplification is very good.

Description

technical field [0001] The invention belongs to the technical field of digital image processing, and in particular relates to an image processing method and a device thereof. Background technique [0002] In digital image processing technology, image rotation and scaling technology has been widely used in military, medical, aviation and other fields. [0003] As an important component of digital image processing, image rotation is widely used in industrial automation, machine vision, satellite remote sensing, medical diagnosis and other fields. For example, the identification and positioning of workpieces in automated industrial sites, automatic positioning of components in electronic assembly lines and detection of the number of pins, character recognition on IC chips, high-resolution digital image display processing in the aviation field, and 3D image reconstruction in the medical field, etc. In addition, studying real-time image rotation is of great help to solve electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T3/60G06T1/60
CPCG06T1/60G06T3/4007G06T3/4053G06T3/60G06T2207/10016G06T2207/20021
Inventor 赵小明邵晓鹏孙帅董磊王星量李召
Owner XIDIAN UNIV
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