imagemagick - Does anyone know how to convert to little endian .pfm file from ImageMagic? -


i'm looking method convert little endian.pfm file imagemagick.

as know can pfm file this. 

convert input.bmp output.pfm

this output file made big endian. want convert little endian.

so there method convert little endian big endian on imagemagick?

thanks

endian can controlled -endian option.

example. create 2x2 red pfm image little endian, , write hexdump.

$ convert -size 2x2 xc:red -endian lsb pfm:- | hexdump  0000000 50 46 0a 32 20 32 0a 2d 31 2e 30 0a 00 00 80 3f 0000010 00 00 00 00 00 00 00 00 00 00 80 3f 00 00 00 00 0000020 00 00 00 00 00 00 80 3f 00 00 00 00 00 00 00 00 0000030 00 00 80 3f 00 00 00 00 00 00 00 00             000003c

you can confirm little endian translating header.

50 46 0a 32 20 32 0a 2d 31 2e 30 0a 00 00 80 3f                      |         |    |         | little endian -------| "-1.0"  |    | lsm data|

repeat above big endian.

$ convert -size 2x2 xc:red -endian msb pfm:- | hexdump  0000000 50 46 0a 32 20 32 0a 31 2e 30 0a 3f 80 00 00 00 0000010 00 00 00 00 00 00 00 3f 80 00 00 00 00 00 00 00 0000020 00 00 00 3f 80 00 00 00 00 00 00 00 00 00 00 3f 0000030 80 00 00 00 00 00 00 00 00 00 00                000003b

and observe...

50 46 0a 32 20 32 0a 31 2e 30 0a 3f 80 00 00 00                      |      |    |         | big endian ----------| "1.0"|    | msb data|

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