USAGE: removelines <source> <dest> [<key> <value> ..]
  converts an imagefile to a binary image with suppression of lines
  commencing at the corners of the image.
  Black lines and text on white/grey background is expected.
USAGE: removelines -
  writes explanation of removelines to stdout.
USAGE: removelines <source>
  writes the number of pixels in <source> below the threshold to stdout.
KEY      VALUE                  DESCRIPTION
-c[orner] <corner>              length of corner, fraction of width or height.
                                Default: 0.250 Max. 0.990
-d[ilate] <iterations>          dilate, make black text leaner. Default: 2 .
-d[ilate] -<iterations>         erode, make black text fatter.
-e[stimate] <lox>/<loy>/<hix>/<hiy> four points for estimation of threshold
                                Default: 0.250/0.250/0.750/0.750
                                as fraction of image width and height.
-g[aussian] <size>              smooth image with kernelsize 2*<size>+1 before saving.
                                before saving.
-h[eight] [-]<height>           scaling to height=<height>[ and flipping].
-i[nterpolation] <interpolation> used for scaling.
-m[ove] <dx>/<dy>               scroll image.
-r[otate] <xcenter>/<ycenter>/<degree> rotate image, rotationcenter as
                                fraction of imagesize, +ve angle is CW.
-s[cale] <factor>               arbitrary scaling[ and flipping]. Default: 3.0
-s[cale] [-]<xfactor>/[-]<yfactor> anamorph scaling[ and flipping].
-t[hreshold] <threshold>        convert pixels below <threshold> to black,
                                otherwise to white. Estimated by default.
-t[hreshold] -<threshold>       add -ve value to estimated threshold.
                                Default: -20.000
-w[idth] [-]<width>             scaling to width=<width>[ and flipping].
-w[xh]   [-]<width>/[-]<height> anamorph scaling[ and flipping].
INTERPOLATION:
 a[rea]   CV_INTER_AREA - resampling using pixel area relation.
 c[ubic]  CV_INTER_CUBIC - bicubic interpolation.
 l[inear] CV_INTER_LINEAR - bilinear interpolation (used by default).
 n[earn]  CV_INTER_NN - nearest-neighbor interpolation.
USING: OpenCV version 1.1.0 (1.1.0)

Copyright (C) 2011 by Harm J. Schoonhoven

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