REBIN_SMOOTH_VDS(1)

        ny={ARG_INT=input dimension},
        nvx={ARG_INT},
        nvy={ARG_INT},
        scale={ARG_INT=1}
        xoffset={ARG_INT=0},
        yoffset={ARG_INT=0},
        wvx={ARG_FLOAT},
        wvy={ARG_FLOAT},
        smooth={ARG_STRING=BOXCAR},
        protocol={ARG_STRING=RDB.FITS}

DESCRIP-

TION

  rebin_smooth - rebins data to smaller size with smoothing

   in         input datacollection
   out        output datacollection
   nx, ny     new dimensions, default to original dimensions
   nvx, nvy   size of smoothing vectors, defaults to "scale" pixels
   scale=1    grid scale factor - number of old pixels per new bin
   xoffset=0  position of left edge of new grid on old grid
   yoffset=0  position of bottom edge of new grid on old grid
   wvx, wvy   smoothing weight parameter, fw at 1/e if gaussian
              so there should be several wvx in nvx.
   smooth     smoothing type, BOXCAR of GAUSSIAN
   protocol   output type, RDB.FITS or RDB.FITS_MERGE

scale

sets

the

basic

remap-

ping,

the

new

image

will

be

taken

with

the

remap

grid

adjusted

to

the

lower

left

of

the

ori-

gi-

the

desired

offset.

nvx

and

nvy

should

be

odd

if

gaus-

sian

smooth-

ing

is

chosen.

Exam-

ple

To

rebin

the

out-

put

of

v2helio

mag-

ne-

to-

grams

from

a

grid

of

1024x1024

to

a

grid

of

128x128

with

gaus-

sian

smooth-

ing

with

a

gaus-

sian

width

rebin_smooth_vds

with:

rebin_smooth_vds nx=128 ny=128 scale=8 \

  wvx=20 wvy=20 nvx=65 nvy=65          \
  smooth=GAUSSIAN in=$TMPA out=$TMPB

KEY-

WORDS

The

fol-

low-

ing

key-

words

are

updated

to

reflect

the

new

image

scale:

X0,

Y0,

CENTER_X,

CENTER_Y,

X_SCALE,

Y_SCALE,

XSCALE,

YSCALE,

and

R_SUN.

New

key-

words

added

are:

SCALE,

NVX,

NVY,

XOFFSET,

YOFFSET,

WVX,

WVY,

and

SMOOTH.

If

the

input

dataset

helio-

graphic

coor-

di-

nate

key-

words

(MAPMMAX

in

par-

tic-

u-

lar)

then

the

fol-

low-

ing

key-

words

are

updated

to

reflect

the

new

image

scale:

MAPRMAX,

LSHIFT,

MAPLGMAX,

MAPLG-

MIN,

MAP-

COLS,

MAP_L0,

MAP_CR,

MAPBMAX,

MAPB-

MIN,

SINBDELT,

MAPROWS,

and

MAPMMAX.

FILES

SEE

ALSO

v2helio(1),

rebin_vds(1)

DIAG-

NOS-