Research of Image Fusion Method about ZY-3 Panchromatic Image and Multispectral Image

摘要

At present, there are few researches on the fusion method of ZY-3 satellite. The paper takes the ZY-3 image of Xi'an as an example, the image fusion experiments were mainly performed using the Brovey transform and Gram-schmidt transform method. Then qualitative analysis from the following three aspects: sharpness, texture features, and hue. Quantitative evaluation from four aspects including standard deviation, information entropy, mean value and correlation coefficient. Combined with the results of qualitative and quantitative analysis above, it shows that Gram-schmidt transform is the most suitable fusion method for panchromatic image and multispectral image of ZY-3 satellite in the existing fusion method.