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w1malik

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    Pakistan

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  1. thanks for your guide. I have apply the same procedure but i have some problem with my ascii file. I exported my LST raster to ascii file but i contain -9999 values. i wonder if you could guide me to fix my file and second this does it matter if this file contain multiple rows and multiple columns please comment.
  2. In ArcGIS there is no direct way to mask the clouds. However one can use model in model builder with various tools to mask the clouds. One such idea is - Add new field to cloud polygon attribute table with -9999, Convert polygon to raster using -9999 field, Use conditional statement to get new raster which is cloud masked raster with cloud value -9999, Use set null tool to set remove cloud part. i have the problem that how to use conditional statement to get new raster and set null value... Any body who help me in this problem solutioin?
  3. Ok you please guide me that multi date image normalization technique can remove the stripping effects in imagery if i would select the base image having slc-off (fill image) and regressed this image by selecting the psuedo invariant feature selection.
  4. I would like to use the local linear histogram match for filling the missing pixels of a Landsat 7 image with another older image or anyone who knows how to fill the gap (SLC-off) image in erdas imagine.
  5. THANKS FOR YOUR RESPONSE REGARDING MY QUERY. WOULD U PLEASE EXPLAIN ABOUT OVERLAY ANALYSIS. HOW CAN I GENERATE THERMAL CLASSIFICATION BASED ON URBAN OR RURAL AREA. THANKS FOR YOUR SUGGESTION FOR USING ERDAS IMAGINE. I HAVE IT AND USING. AFTER RETRIEVING THE TEMPERATURE DATA OF LANDSAT 5 I HAVE PROBLEM TO MOSAIC 2 TILES OF CONSISTING MY GEOGRAPHIC AREA. WHEN I MOSAIC THE TWO TILES, THE BLACK BOUNDING BOX COVERING THE RECTANGLE AREA OVERLAY THE SECOND TILE WITH BLACK AREA ON IT. HOW CAN I GET RID OF THAT BLACK AREA OVER IT?
  6. Is there any way to spatially recognize the densely populated area with sparsely populated area so that i could see the change with urban and sub urban areas in my area of study and further i want to see the temperature change between both of the areas? please guide me accordingly.
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