I am currently using the exercise titled Supervised Land Cover Classification Exercise 1

After I have created the individual band sets using the pre-processing tool, the next step in the exercise (see link above) requires to stack the bands together using the band set icon in SCP. My bands 2-7 were in the band set definition box, (in tandem with the above exercise) but when I click to 'create raster of band set (stack bands)' and run it (in band set icon of SCP plugin), I get a completely pitch black Bstack_raster.tif image. I have tried changing the color style under the properties table but it still remains pitch black. I have tried backtracking to see any mistake but as far as I can see I have followed the correct procedure in the exercise.

  • Did you follow the instructions on p4? "In order to display this image in a usable color combination, go to the Layers Panel and right click on the stacked raster image. Go to Properties and select Style. Put band 5 in the red band, band 4 in the green band and band 3 in the blue band, and make sure Contrast enhancement is set to “Stretch to MinMax”. In the section “Load min/max values” to the right, click Load, and then click OK." – Aaron Mar 28 '18 at 5:05
  • Yes I did.in short every step in that document, I followed to the letter.in my case,in the multiband section, there are no values since the image is just black. – Samuel Gachuhi Mar 29 '18 at 9:38
  • Just to help you,the image I used,I downloaded it from Glovis website-Landsat 8 OLI, path 43,row 33:date is September 22nd,2015. Be assured all instructions at pg 4 & before were followed to the letter. – Samuel Gachuhi Mar 29 '18 at 9:40
  • Just download the above image (using info given)unzip it,you can use 7-zip extractor, perform the actions on it using SCP as per the instructions on pg 1-4 of the exercise. Feedback will be appreciated. In short I followed everything, until this unusual result. – Samuel Gachuhi Mar 29 '18 at 9:43
  • My values in the style properties section, for [min]in the three bands they all read nan,i n short,I tried changing style using those same instructions but not successful – Samuel Gachuhi Mar 29 '18 at 9:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.