Aaron Boxer <boxerab <at> gmail.com> writes:
> This feature would be quite involved: one would have to gather all of the layers for > > all of the code blocks in all of the precincts overlapping that sub-tile,plus the immediately surrounding precincts, run the inverse entropy coder to get the wavelet coefficients, and then do an inverse wavelet transform,with this incomplete set of coefficients. > I do not claim that I understand GIS but I have a feeling that precincts are designed for a fast ROI access. From http://www2.engr.arizona.edu/~bilgin/publications/SPIE2004_2.pdf "A precinct is a collection of code-blocks representing some finite spatial extent at some resolution." Probably gathering the surrounding precincts is unnecessary. Author of Kakadu seems to dislike tiles and it is no wonder that with Kakadu precincts perform well even with archived documents http://www.digitizationguidelines.gov/still-image/documents/Martin.pdf. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
