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This paper focuses on image segmentation, image correction and spatial-spectral dimensional denoising of images in hyperspectral image preprocessing to improve the classification accuracy of hyperspectral images. Firstly, the images were filtered and segmented by using spectral angle and principal component analysis, and the segmented results are intersected and then used to mask the hyperspectral images. Hyperspectral images with a excellent segmentation result was obtained. Secondly, the standard reflectance plates with reflectance of

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Car Remote Key Repair Modern car remotes are useful and convenient but they can be frustrating when they stop functioning. There are a few easy solutions to get them working again. First, try replacing the battery. The majority of fobs are powered by lithium coin cells. They are inexpensive and easily accessible. Broken Electronics Your car key remote has an electronic circuit board inside that transmits and interprets signals to your vehicle. The key fob will stop working if this board is damaged. Contrary to battery failure, which is usu