Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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56 lines
1.2 KiB
56 lines
1.2 KiB
#!/bin/bash |
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############################### |
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# ECHOMIX # |
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############################### |
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SRCDIR="Fist" |
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DSTDIR="Pong" |
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FTMP="/dev/shm/tmp.fimg" |
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FDST="/dev/shm/foo.fimg" |
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# ------------------------------------------------------------ |
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# count the nomber of picz in the source directory |
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# |
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NBRE=$(ls -1 ${SRCDIR}/*.fimg | wc -l) |
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# compute the echo picz offset |
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# |
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OFFS=$(( NBRE / 4 )) |
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# ------------------------------------------------------------ |
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# MAIN LOOP |
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for idx in $(seq 0 $NBRE) |
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do |
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# build the two input filenames ... |
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# |
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imgA=$(printf "$SRCDIR/%04d.fimg" $idx) |
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vb=$(( $(( idx + OFFS )) % NBRE)) |
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imgB=$(printf "$SRCDIR/%04d.fimg" $vb) |
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# ... and the output filename |
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# |
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dst=$(printf "%s/%05d.png" ${DSTDIR} $idx) |
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printf " %20s %20s %8df %20s\n" $imgA $imgB $vb $dst |
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# trying to autocompute the mixing coefficient |
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# |
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compute=" s(${idx} / 16) " |
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K=$(echo $compute | bc -l) |
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printf " %25s => %8.3f\n" "$compute" $K |
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# do the hard floating computation |
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# |
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fimgfx -v cos010 ${imgB} ${FTMP} |
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fimgops -k ${K} ${FTMP} ${imgA} mix ${FDST} |
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# write the output as PNG for video encoding |
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# |
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fimg2png ${FDST} ${dst} |
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done |
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# ------------------------------------------------------------
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