Panchromatic image sharpening method based on low-rank decomposition of directional multi-scale group
A panchromatic image, low-rank decomposition technology, applied in the field of image processing and remote sensing applications, can solve problems such as excessive panchromatic image information, loss of multispectral images, color distortion, etc., to achieve good spectral information, improve spatial resolution, The effect of reducing color distortion
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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0039] refer to figure 1 , the specific embodiments of the present invention are as follows.
[0040] Step 1, input image.
[0041] The multi-spectral image MS and the panchromatic image Pan were read separately in the computer using matlab software. The input low-resolution multispectral image MS in the embodiment of the present invention has a size of 64*64*4 and a resolution of 2 meters, and a high-resolution panchromatic image has a size of 256*256 and a resolution of 0.5 meters.
[0042] Step 2, obtain upsampled multispectral LMS and downsampled panchromatic image dPan.
[0043] The multispectral image MS is upsampled by using the imresize function in matlab software to obtain the upsampled multispectral image LMS.
[0044]The panchromatic image Pan is down-sampled using the imresize function in matlab software to obtain the down-sampled panchromatic...
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