Combining overlapping rasters by minimum value in python
<p>I would like to combine some 1-band raster images. I would like the overlap to be handled such that the smallest value in a pixel is chosen.
All images have the same projection.</p>

<p>I tried looking at gdalwarp and gdal_merge (in command-line), but in the overlap they just use the values from the last image.</p>

<p>I have also seen suggestions to use PIL blend or paste, but these require an alpha layer, which indicates how the overlaps should be blended, which of course I don't have.</p>

<p>Is there anyone who knows how to make the overlap depend on the actual values in the images??</p>