Empty Output

[wboykinm]

Thanks for the assistance getting script up and running!

Now I'm getting empty output on a very similar, but larger .tif file. The output vector data has no features, and it's not producing the intermediate threshold .tif. Are there input requirements that I'm missing?

[mgiraldo]

The 16-bit-ness of the input is messing things up for GIMP. I converted the file to 8-bit like so (I also cropped it a bit so disregard the projwin):

gdal_translate -ot Byte -projwin -73.2150775556 44.4836930965 -73.2137377158 44.4827370413 -of GTiff btv2.tif btv2-8bit.tif

This is the output with default colors:

You need to customize the colors for it to produce better results in this map.

Hope this helps.