Perform Thresholding for LandSat-8 Images

[Chintan2108]

• Right now, a simple band math formula has been applied to the input image.

• This outputs a grayscale image - the pixels having higher probability of having the feature of interest have a high value (0-255) and hence appear towards the brighter side.

• Perform thresholding, decide a threshold value, in order to convert the output grayscale image into a binary feature map

• Use data available as a part of PR added Landsat 8 NDWI indices notebook #9

• For eg: If the threshold is decided as 200, then modify the output image such that all pixels having values greater than or equal to 200 will now have a value of 1, and other pixels will have a value of 0. This will result in a binary image, in which the bright pixels would represent features.