+proj=utm +zone=17 +north +ellps=WGS84 +datum=WGS84 +units=m +no_defs 
## comment: the first line must contain EPSG. ( mandatory )
## 0/0 of Pixel Coord = Upper left corner pixelX(column_0..) pixelY(row_0..)
## x1 y1 z1 pixelx1 pixely1 imagename1 idGCP ( idGCP optional )
# order by GCP
# GCP01
274914.738    4603349.014    400    1229.676   514.215    DJI_0068.JPG    HV01
274914.738    4603349.014    400    1268.023    31.309    DJI_0104.JPG    HV01
#274914.738   4603349.014    400    1350.499 -1506.619    1JI_0076.JPG badHV01
274914.738    4603349.014    400    1350.499  1506.619    1JI_0076.JPG    HV01
# this is a comment, skip and skip empty line

# GCP02, no idGCP ( old format )
274915.887    4603307.715    400    1276.695  1043.561    DJI_0068.JPG
274915.887    4603307.715    400     750.239    81.604    DJI_0104.JPG
274915.887    4603307.715    400     336.897   634.845    DJI_0083.JPG
274915.887    4603307.715    400    1344.332   956.654    1JI_0076.JPG
# GCP03
274985.284    4603319.756    400    2125.152   841.227    DJI_0068.JPG    HV03
274985.284    4603319.756    400     919.044   903.661    DJI_0104.JPG    HV03
274985.284    4603319.756    400     483.157  1088.268    1JI_0076.JPG    HV03
# GCP04
274920.710    4603258.802    400   1376.513   1662.513    DJI_0068.JPG    HV04
274920.710    4603258.802    400    183.508    181.808    DJI_0104.JPG    HV04
274920.710    4603258.802    400    919.236    537.724    DJI_0083.JPG    HV04
274920.710    4603258.802    400   2202.425   1319.122    DJI_0063.JPG    HV04
274920.710    4603258.802    400    604.750    771.373    DJI_0074.JPG    HV04
# GCP05
274879.571    4603204.279    400   1617.581   1008.779    DJI_0083.JPG    HV05
274879.571    4603204.279    400   1505.237    849.416    DJI_0063.JPG    HV05
274879.571    4603204.279    400   1291.725   1257.747    DJI_0074.JPG    HV05