写真のexif情報を書き換えたい

前提・実現したいこと

写真のexif情報を書き換えたい

発生している問題・エラーメッセージ

このようなエラーが出ました。

UnboundLocalError                         Traceback (most recent call last)
~/Droon/image.py in <module>
     43     exif_dict['GPS'][2] = tuple(map(tuple,a))
     44     exif_dict['GPS'][4] = tuple(map(tuple,b))
---> 45     exif_bytes = piexif.dump(exif_dict)
     46
     47     fnn = 'DJI_'+num+'p.JPG'

/data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in dump(exif_dict_original)
     72         exif_length = 0
     73     if gps_is:
---> 74         gps_set = _dict_to_bytes(gps_ifd, "GPS", zeroth_length + exif_length)
     75         gps_bytes = b"".join(gps_set)
     76         gps_length = len(gps_bytes)

/data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in _dict_to_bytes(ifd_dict, ifd, ifd_offset)
    335             length_str, value_str, four_bytes_over = _value_to_bytes(raw_value,
    336                                                                      value_type,
--> 337                                                                      offset)
    338         except ValueError:
    339             raise ValueError(

/data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in _value_to_bytes(raw_value, value_type, offset)
    245                                 struct.pack(">L", den))
    246         value_str = struct.pack(">I", offset)
--> 247         four_bytes_over = new_value
    248     elif value_type == TYPES.SRational:
    249         if isinstance(raw_value[0], numbers.Integral):

UnboundLocalError: local variable 'new_value' referenced before assignment

コードはこちらです。

import
1import pandas as pd
2from fractions import Fraction
3import piexif
4from PIL import Image
5import droon1
6
7df = droon1.df
8df1 = df[df['isPhoto'] > 0]
9
10for i in range(2,88+1):
11    num = str(i).zfill(4)
12    fn = 'DJI_'+num+'.JPG'
13    rf = '../Photo/' + fn
14    img = Image.open(rf)
15
16    exif_dict = piexif.load(img.info['exif'])
17
18    exif_dict['GPS'][piexif.GPSIFD.GPSAltitude] = (df1.iloc[(i)-1][3],1)
19
20    lat = df1.iloc[(i)-1][0]
21    lat_a = int(lat)
22    lat_b = int((lat - lat_a)*60)
23    lat_c = ((lat - lat_a)*60-lat_b)*60*1000
24
25    lon = df1.iloc[(i)-1][1]
26    lon_a = int(lon)
27    lon_b = int((lon - lon_a)*60)
28    lon_c = ((lon - lon_a)*60-lon_b)*60*1000
29
30    a = np.array(exif_dict['GPS'][2])
31    b = np.array(exif_dict['GPS'][4])
32
33    print(a)
34    a[0,0] = lat_a
35    a[1,0] = lat_b
36    a[2,0] = lat_c
37
38    b[0,0] = lon_a
39    b[1,0] = lon_b
40    b[2,0] = lon_c
41
42    exif_dict['GPS'][2] = tuple(map(tuple,a))
43    exif_dict['GPS'][4] = tuple(map(tuple,b))
44    exif_bytes = piexif.dump(exif_dict)
45
46    fnn = 'DJI_'+num+'p.JPG'
47    rff = '../Photo/' + fnn
48    img.save(rff, "jpeg",exif=exif_bytes)

試したこと

df = droon1.df
df1 = df[df['isPhoto'] > 0]
をfor文の中に入れてみました。

floatをintに変えてみました。

import
1import pandas as pd
2from fractions import Fraction
3import piexif
4from PIL import Image
5import droon1
6
7df = droon1.df
8df1 = df[df['isPhoto'] > 0]
9
10for i in range(2,88+1):
11    num = str(i).zfill(4)
12    fn = 'DJI_'+num+'.JPG'
13    rf = '../Photo/' + fn
14    img = Image.open(rf)
15
16    exif_dict = piexif.load(img.info['exif'])
17
18    exif_dict['GPS'][piexif.GPSIFD.GPSAltitude] = (df1.iloc[(i)-1][3],1)
19
20    lat = df1.iloc[(i)-1][0]
21    lat_a = int(lat)
22    lat_b = int((lat - lat_a)*60)
23    lat_c = ((lat - lat_a)*60-lat_b)*60
24    lat_c = str(lat_c)
25    lat_c = lat_c.replace('.','')
26    lat_c = lat_c[:6]
27    lat_c = int(lat_c)
28
29    lon = df1.iloc[(i)-1][1]
30    lon_a = int(lon)
31    lon_b = int((lon - lon_a)*60)
32    lon_c = ((lon - lon_a)*60-lon_b)*60
33    lon_c = str(lon_c)
34    lon_c = lon_c.replace('.','')
35    lon_c = lon_c[:6]
36    lon_c = int(lon_c)
37
38    a = np.array(exif_dict['GPS'][2])
39    b = np.array(exif_dict['GPS'][4])
40
41
42    a[0,0] = lat_a
43    a[1,0] = lat_b
44    a[2,0] = lat_c
45
46    b[0,0] = lon_a
47    b[1,0] = lon_b
48    b[2,0] = lon_c
49
50    exif_dict['GPS'][2] = tuple(map(tuple,a))
51    exif_dict['GPS'][4] = tuple(map(tuple,b))
52    exif_bytes = piexif.dump(exif_dict)
53
54    fnn = 'DJI_'+num+'p.JPG'
55    rff = '../Photo/' + fnn
56    img.save(rff, "jpeg",exif=exif_bytes)
57コード

Luke02561

2020/06/09 03:42

エラーの全文を見せてください

runa0202

2020/06/09 03:45 編集

UnboundLocalError Traceback (most recent call last) ~/Droon/image.py in <module> 43 exif_dict['GPS'][2] = tuple(map(tuple,a)) 44 exif_dict['GPS'][4] = tuple(map(tuple,b)) ---> 45 exif_bytes = piexif.dump(exif_dict) 46 47 fnn = 'DJI_'+num+'p.JPG' /data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in dump(exif_dict_original) 72 exif_length = 0 73 if gps_is: ---> 74 gps_set = _dict_to_bytes(gps_ifd, "GPS", zeroth_length + exif_length) 75 gps_bytes = b"".join(gps_set) 76 gps_length = len(gps_bytes) /data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in _dict_to_bytes(ifd_dict, ifd, ifd_offset) 335 length_str, value_str, four_bytes_over = _value_to_bytes(raw_value, 336 value_type, --> 337 offset) 338 except ValueError: 339 raise ValueError( /data/kako/anaconda3/lib/python3.7/site-packages/piexif/_dump.py in _value_to_bytes(raw_value, value_type, offset) 245 struct.pack(">L", den)) 246 value_str = struct.pack(">I", offset) --> 247 four_bytes_over = new_value 248 elif value_type == TYPES.SRational: 249 if isinstance(raw_value[0], numbers.Integral): UnboundLocalError: local variable 'new_value' referenced before assignment これです。

Luke02561

2020/06/09 03:46

質問の方でもお願いします