adnan0001 Posted April 24, 2013 Report Share Posted April 24, 2013 i know little bit process here mentioning landsat etm+ data band1+band2+band3+band4 using layerstacking make multi spectral image of it...... next panchromatic 4 band single image with these 2 image i have to make high resolution image of 15m i think i have to do band rationing or not exactly i dont know plz can any1 tell me the process..of next step........ waiting for the reply............ Quote Link to comment Share on other sites More sharing options...
adnan0001 Posted April 24, 2013 Author Report Share Posted April 24, 2013 in detail Quote Link to comment Share on other sites More sharing options...
3dbu Posted April 24, 2013 Report Share Posted April 24, 2013 just have to make a layer stak of all band and add the band8, just it .... Quote Link to comment Share on other sites More sharing options...
elman Posted April 25, 2013 Report Share Posted April 25, 2013 layer stake will not improve the spatial resolution of result image right way is image fusion Quote Link to comment Share on other sites More sharing options...
alien786 Posted April 25, 2013 Report Share Posted April 25, 2013 Yes.. fuse both images... stacked image with pancromatic one. Quote Link to comment Share on other sites More sharing options...
adnan0001 Posted April 25, 2013 Author Report Share Posted April 25, 2013 hello elman thanks for ur reply.. can u plz explain me in detail Quote Link to comment Share on other sites More sharing options...
elman Posted April 25, 2013 Report Share Posted April 25, 2013 (edited) hi adnan, 1. First stack the multispectral bands except the thermal (band 6) and panchromatic (Band 8). In your case may be 1, 2, 3, 4 Using ERDAS: Image Interpreter ->Utilities->Layer Stack Now you have one multistektral image with 30 m and panchromatic (in Landsat ETM Band 8 ) with 15 m. 2. Fusion the stacked image with panchromatic ERDAS: Image Interpreter -> Spatial Enhancement -> Resolution Merge Select high resolution input as panchromatic image Multispectral as stacked image There are several chose for methods you can tray which one more suitable I hope it will help Edited April 25, 2013 by elman Quote Link to comment Share on other sites More sharing options...
cos179 Posted April 25, 2013 Report Share Posted April 25, 2013 You have to use one of the pansharpening methods. elman mentioned, one is Resolution Merge in Erdas. There are other methods too. Try different methods as long as the result is satisfactory, i.e. spatial and radiometric resolutions. Quote Link to comment Share on other sites More sharing options...
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