--- ray/doc/man/man1/ra_tiff.1	2003/07/01 19:04:07	1.2
+++ ray/doc/man/man1/ra_tiff.1	2024/10/04 18:49:06	1.7
@@ -14,7 +14,7 @@ ra_tiff - convert RADIANCE picture to/from a TIFF colo
 .B "-g gamma"
 ]
 {
-.B "in.pic|-"
+.B "in.hdr|-"
 }
 .B out.tif
 .br
@@ -28,7 +28,7 @@ ra_tiff - convert RADIANCE picture to/from a TIFF colo
 ]
 .B in.tif
 [
-.B "out.pic|-"
+.B "out.hdr|-"
 ]
 .SH DESCRIPTION
 .I Ra_tiff
@@ -62,7 +62,7 @@ The
 .I \-f
 option specifies 32-bit IEEE floating-point/primary output, which
 is the highest resolution format but results in very large files, since
-each RGB pixel takes 96 bits (12 bytes) and there is no compression.
+each RGB pixel takes 96 bits (12 bytes) and does not compress well.
 The
 .I \-w
 option specifies 16-bit/primary output, which is understood by
@@ -74,6 +74,10 @@ The
 option specifies an exposure compensation in f-stops (powers of two).
 Only integer stops are allowed, for efficiency.
 .PP
+If the Radiance input is a hyperspectral picture, it will be
+converted accurately if the output is anything but 24-bit RGB.
+In the latter case, the converted colors will be approximate.
+.PP
 The
 .I \-r
 option invokes a reverse conversion, from a TIFF image to
@@ -88,16 +92,16 @@ than the default RGBE.
 .SH EXAMPLES
 To convert a Radiance picture to SGILOG-compressed TIFF format:
 .IP "" .2i
-ra_tiff -L scene1.pic scene1.tif
+ra_tiff \-L scene1.hdr scene1.tif
 .PP
 To later convert this image back into Radiance and display using
 human visibility tone-mapping:
 .IP "" .2i
-ra_tiff -r scene1.tif scene1.pic
+ra_tiff \-r scene1.tif scene1.hdr
 .br
-ximage -e human scene1.pic
+ximage \-e human scene1.hdr
 .SH AUTHOR
-Greg Ward Larson
+Greg Ward
 .br
 Sam Leffler
 .SH ACKNOWLEDGEMENT
@@ -110,5 +114,5 @@ Many TIFF file subtypes are not supported.
 A gamma value other than 2.2 is not properly recorded or understood if
 recorded in the TIFF file.
 .SH "SEE ALSO"
-pfilt(1), ra_bn(1), ra_ppm(1), ra_pr(1), ra_pr24(1), ra_t8(1),
+pfilt(1), ra_bmp(1), ra_bn(1), ra_ppm(1), ra_pr(1), ra_pr24(1), ra_t8(1),
 ra_t16(1), ximage(1)