how to keep meta/exif? and 2 other things

  • Hello, is there any -parametr to keep exif data?

    i have now ktransform" cube6 "%%~V" "%%~dpnV.jpg" -jpegquality=100 -jpegsubsamp=422 -jpegoptimize


    Input i have pano.jpg with gps coordinates in exif when i use ktransform it clears all data - how to avoid it?


    second thing is what is jpegsubsamp color subsampling?

    Is 444= best? worse? whats the diffrence 444 vs 411 mode?


    and last thing

    what exactly do -jpegoptimize?

    paul

  • # jpegquality
    # - jpeg compression quality for the image tiles
    # - possible values:
    # - 1-100 ... 1=worst, 100=best qualitiy
    #
    jpegquality=82


    # jpegsubsamp
    # - jpeg color subsampling to reduce file size
    # - more informations: http://en.wikipedia.org/wiki/Chroma_subsampling
    # - possible values:
    # 444 = no color subsampling (best quality)
    # 422 = horizontal (1/2) color subsampling (good compromise)
    # 420 = horizontal (1/2) and vertical (1/2) color subsampling (the jpeg default)
    # 411 = horizontal (1/4) and vertical (1/2) color subsampling (best compression)
    #
    jpegsubsamp=422


    # jpegoptimize
    # - optimize jpeg huffman compression
    # - should be always on
    # - but this needs more processing memory
    # - if memory usage is critical (very large panos) it should be disabled
    #
    jpegoptimize=true

  • Hi,

    Zitat

    I would like to ask how about this RC? 2011-04-11 - krpano 1.0.8.14 Tools - Release Candidate

    Final version will have exif keep option?

    no, sorry, copying the exif data will not be in 1.0.8.14,

    but if you want you could use the exiftool to do already:
    http://thomer.com/howtos/copy_exif.html

    e.g. add additional code to the convert batch file that copies the exif data after converting:

    Code
    for ... ktransform cube6 "%%~V" "%%~dpnV.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_l.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_f.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_r.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_b.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_u.jpg"
    for ... exiftool -TagsFromFile "%%~V" "%%~dpnV_d.jpg"

    best regards,
    Klaus

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