Image stitching of ENVI

 Set to zero, so that the image background is transparent, Feathering Distance: This value can be set according to actual needs (if you don’t understand what feathering is, I’ll be speechless, you can check it yourself), Cutline Feathering: The selection is already built Feathering line (its function is that if two mosaic images overlap too much, a part of it can be cut off, and feathering is performed according to the cutting line), Color Balancing (color equalization processing), select Adjust, it refers to this image and another Match one image, click OK, when the second image is mosaicked, this option is Fixed. After the image is imported, apply in File, select File (file save) in Output Result to in the pop-up window, name it in Enter Output Filename and select the save path; Memory (memory save), if it is Memory, then It is automatically added to the Available Band List. If it is File (file save), open the file, then select RGB Color in the Available Band List, and then select the band to be added for R, G, B, and then Load RGB, in the pop-up File---Save Image As---Image File in the largest window (the one with the file name), select the format to be saved in the Output File Type, such as TIFF/GeoTIFF (if you remember correctly, there should be coordinates Raster file format), so far, the mosaic operation is complete. Note: Because the shooting time of different images is different, there are differences in color. In the experiment, it is very difficult to achieve ideal color matching in ENVI. The histogram equalization process can be performed in Photoshop. The functions used are: "Image"-"Adjustment" in "Level", "Color Balance", "Brightness/Contrast" to adjust