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Last Post 21 Jun 2010 09:15 PM by  anon
Cloud Masking
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anon



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21 Jun 2010 09:15 PM
    I am using Landsat TM data and have cloud cover at diiferent portion of the image. I donot know how to create cloud and their shadow masks and how to apply it. I want to creatre an image without cloud and shadow......that means cloud area contains no image (blank) in the main image. Is there any method to subset image with respect to cloud mask......Image - Cloud mask = image with no cloud or shadow. I am using ENVI 4.5. Thanks PK

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    21 Jun 2010 09:34 PM
    I think there is an answer. You need to use double image to solve the problem. Some points for you- Mask out the cloud with shadow from your Landsat data using polygon followed by raster overlay. Classify the Landsat image Classify another dataset of the same area (Spot, Landsat, QB, whatever) Join the both images. Means, fill the gap of the Landsat image (shadow+cloud) by another classified image. Hope this helps
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