--- ray/doc/man/man1/ra_tiff.1 2003/03/15 17:32:55 1.1 +++ ray/doc/man/man1/ra_tiff.1 2008/11/10 19:08:17 1.6 @@ -5,7 +5,7 @@ ra_tiff - convert RADIANCE picture to/from a TIFF colo .SH SYNOPSIS .B ra_tiff [ -.B "-z|-L|-l" +.B "-z|-L|-l|-f|-w" ][ .B -b ][ @@ -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 @@ -55,9 +55,18 @@ However, since many TIFF readers do not yet support th use this option under advisement. The .I \-l -option specifies SGILOG24 compressed output, which has slightly +option specifies SGILOG24 compressed output, which has less dynamic range than SGILOG, but may be smaller in some cases. -(It may also be larger in some cases.)\0 +(It is usually larger.)\0 +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 does not compress well. +The +.I \-w +option specifies 16-bit/primary output, which is understood by +some photo editing software, such as Adobe Photoshop. Decompression is automatically determined for TIFF input. .PP The @@ -79,14 +88,14 @@ 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 .br @@ -101,5 +110,5 @@ 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)