Reading an image by overlapped blocks of chosen depth


In rasterio, reading image array in the unit of blocks is pretty convenient and useful. However, Overlapping blocks could be very useful for certain applications which requires kernel wise processing (such as simple smoothing filter).  So far there is no provision to make a block overlap with its neighboring blocks as per requirement of the application. It would be immensely handy if this feature gets implemented in rasterio. Related Stackoverflow Question.

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