after thumbnail-set: 512x384
Reading out.tga
out.tga              :  512 x  384, 3 channel, uint8 targa
    SHA-1: 55B55C41EB65BF7B741671DBFFA29CA970D4877C
    channel list: R, G, B
    compression: "rle"
    thumbnail_height: 38
    thumbnail_nchannels: 3
    thumbnail_width: 50
    oiio:BitsPerSample: 8
    targa:version: 2
Computing diff of "thumb.tif" vs "resize"
PASS
Reading no_thumb.tif
no_thumb.tif         :  512 x  384, 3 channel, uint8 tiff
    channel list: R, G, B
    compression: "lzw"
    Orientation: 1 (normal)
    PixelAspectRatio: 1
    planarconfig: "contig"
    ResolutionUnit: "in"
    XResolution: 72
    YResolution: 72
    oiio:BitsPerSample: 8
    tiff:Compression: 5
    tiff:PhotometricInterpretation: 2
    tiff:PlanarConfiguration: 1
    tiff:RowsPerStrip: 32
oiiotool WARNING: --thumbnail-set : pending command never executed
oiiotool WARNING : oiiotool produced no output. Did you forget -o?
