FPGA (field programmable gate array)-based infrared image detail enhancing system and method
An enhancement system and infrared image technology, applied in the field of infrared thermal imaging, can solve the problems of not being able to distinguish objects in the scene, low contrast and detail division, blurred image edges, etc., to improve contrast, suppress background noise, and enhance details information effect
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[0017] Combine figure 1 , The FPGA-based infrared image detail enhancement system and method of the present invention includes a bilateral filter module, a Gaussian filter module, a projection histogram module, and an automatic gain control module. The bilateral filter module is connected to the Gaussian filter module, and the Gaussian filter module is connected to the projection histogram. The graph module is connected to the automatic gain control module. On the one hand, the input original image data passes through the bilateral filter module and the Gaussian filter module to obtain the fundamental frequency information of the image. On the other hand, the delay time of the above processing is buffered and the difference with the fundamental frequency information is obtained to obtain Detail level data. The image detail layer data and fundamental frequency data are processed separately: the detail layer is enhanced by adaptive gain control; the fundamental frequency informati...
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