| 12 |
|
] |
| 13 |
|
.SH DESCRIPTION |
| 14 |
|
.I Pfilt |
| 15 |
< |
performs anti-aliasing and scaling on a RADIANCE picture. |
| 15 |
> |
performs anti-aliasing and scaling on a RADIANCE picture |
| 16 |
> |
or hyperspectral image. |
| 17 |
|
The program makes two passes on the picture file in order to |
| 18 |
|
set the exposure to the correct average value. |
| 19 |
|
If no |
| 70 |
|
Color-balance the image as if it were illuminated by fixtures of |
| 71 |
|
the given type. |
| 72 |
|
The specification must match a pattern listed in the lamp |
| 73 |
< |
lookup table (see the -f option below). |
| 73 |
> |
lookup table (see the \-f option below). |
| 74 |
|
.TP |
| 75 |
|
.BR -f \ lampdat |
| 76 |
|
Use the specified lamp lookup table rather than the default (lamp.tab). |
| 106 |
|
This option may be used to mitigate the problems associated with |
| 107 |
|
inadequate image sampling, at the expense of a slightly blurred |
| 108 |
|
image. |
| 109 |
< |
The fraction given should not exceed the output picture dimensions |
| 109 |
> |
The fraction given should not be less than the output picture dimensions |
| 110 |
|
over the input picture dimensions (x_o*y_o/x_i/y_i), or blurring |
| 111 |
|
will occur over the entire image. |
| 112 |
|
This option implies the |
| 141 |
|
.SH ENVIRONMENT |
| 142 |
|
RAYPATH directories to search for lamp lookup table |
| 143 |
|
.SH FILES |
| 144 |
< |
/usr/tmp/rt?????? |
| 144 |
> |
/tmp/rt?????? |
| 145 |
|
.SH AUTHOR |
| 146 |
|
Greg Ward |
| 147 |
|
.SH "SEE ALSO" |
| 148 |
< |
getinfo(1), ies2rad(1), pcompos(1), pflip(1), pinterp(1), |
| 149 |
< |
pvalue(1), protate(1), rad(1), rpict(1), ximage(1) |
| 148 |
> |
getinfo(1), ies2rad(1), pcomb(1), pcompos(1), pflip(1), pinterp(1), |
| 149 |
> |
pvalue(1), protate(1), rad(1), rcomb(1), rmtxop(1), |
| 150 |
> |
rpict(1), ximage(1) |
