# Last edited on 2012-09-24 01:34:50 by stolfilocal

Obtaining the images

  tree-16 - a Japanese plum tree next to IMECC, UNICAMP
  petro-1 - view of Rio from UFF, with Petrobrás platform
  tree-22 - nearly leafless fat-branched trees at UFF
  tree-23 - a small quaresmeira tree in Barão Geraldo
  tree-25 - a yellow ipe in Barão geraldo
  tree-26 - a pink ipe in front of IMECC, UNICAMP
  tree-27 - same pink ipe, next day

  uecbox-1 - a cinderblock building in Rua Pitágoras, UNICAMP
  uecbox-2 - the brickfaced Physics building at Rua Pitágoras, UNICAMP
  
  radial-check - photos for radial distortion calibration
  
Obtaining image dates

  Note that the camera's clock is often wrong.
  
    for f in *.JPG ; do identify -verbose ${f} | egrep -i -e '^ *(image|date:cr)' ; done 

Building preliminary reduced versions:

  Images are 3072 (2^10 * 3) by 1728 (2^6 * 3^3), i.e 2^6*(48 by 27). We want sizes 
  that can be reduced by powers of 2 and by 7/10 (best simple approx to sqrt(0.5)).
  So sizes must be 2^k*5*x and 2^k*y where gcd(x,y) is odd.  The smallest 
  image will then be 5*x by 5*y
  
    choose-image-sizes.gawk -v nx=3072 -v ny=1728 | sort -b -k8,8nr -k3,3n