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fieldcomb(1) [minix man page]

FIELDCOMB(1)						      General Commands Manual						      FIELDCOMB(1)

NAME
fieldcomb - combine two or more field frames for video animation SYNOPSIS
fieldcomb [ -e|-o ][ -r ] [ -f combined.hdr ] field0.hdr field1.hdr .. DESCRIPTION
Fieldcomb combines two or more field frames into half as many final video frames for field-based animations. Normally, the even scanlines in the output are given over to the first, third, fifth, etc. pictures given on the input, and the odd scanlines are given over to the sec- ond, fourth, sixth, etc. pictures on the input. This behavior corresponds to the -e option, which is set by default. To reverse this ordering, the -o option must be specified. Normally, fieldcomb will name output frames by dividing the numbers on the input field file names by 2, inserting a 'C' right before the number, adding leading zeroes to make it always four digits. For example, the command: fieldcomb anim12.hdr anim13.hdr anim14.hdr anim15.hdr will produce two output pictures: animC0006.hdr & animC0007.hdr If an odd number of input files is given on the command line, the last file is held over and used as the first file in the next invocation of fieldcomb in the same directory. In this way, the program works well with the "TRANSFER" facility of ranimate(1), which does not guar- antee an even number of frames will be passed every time. If only two input files are given, the -f option may be used to specify a different output name of the user's choosing. If the -r option is specified, then the input files will be removed once they have been combined. AUTHOR
Greg Ward ACKNOWLEDGEMENT
Work on this program was sponsored by Iebele Abel. SEE ALSO
getinfo(1), pcomb(1), pfilt(1), phisto(1), ran2tiff(1), ranimate(1), rpict(1) RADIANCE
9/6/2005 FIELDCOMB(1)

Check Out this Related Man Page

RAN2TIFF(1)						      General Commands Manual						       RAN2TIFF(1)

NAME
ran2tiff - expose and convert a RADIANCE animation to TIFF frames SYNOPSIS
ran2tiff [ -W prev_frame_wt ][ -H histo ][ -D dir ] [ pcond opts ] [ ra_tiff opts ] frame1.hdr frame2.hdr .. DESCRIPTION
Ran2tiff takes an animated sequence of Radiance pictures and converts them by calling pcond(1) and ra_tiff(1) in such a way that exposure changes gradually from one frame to the next. It accomplishes this by computing a histogram for each image and blending it with a weighted histogram from the previous frame, where the weight is set by the -W option, or 0.9 by default. A value of 0.5 would mean that the previ- ous frame carries 1/2 the weight of the current one, and the frame before that 1/4, 1/8 before that, and so on. The -H option specifies a histogram file to be used to ensure continuous exposure between the current sequence and one before it. If the file does not exist, it will be created at the end of the conversion. If it does exist, its contents will be used as the histogram at the end of the previous sequence. The -D option may be used to specify an output directory for the resulting TIFF frames. Otherwise, the current directory will be used. The output file names will correspond to the input names, but with a ".tif" suffix. Ran2tiff also accepts the standard options for pcond and ra_tiff, though output to LogLuv TIFF formats is not supported. (There would be no point in adjusting the exposure if the output were HDR.) EXAMPLE
To convert a sequence of frames using a rapid human exposure response and LZW compression on the output: ran2tiff -W 0.7 -h -z frame*.hdr Similar to fieldcomb(1), this program works well with the "TRANSFER" facility of ranimate(1). AUTHOR
Greg Ward SEE ALSO
fieldcomb(1), getinfo(1), pcond(1), pfilt(1), phisto(1), ra_tiff(1), ranimate(1), rpict(1) RADIANCE
9/16/2005 RAN2TIFF(1)
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