Commander1024/radiation-tagger
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radiation-tagger
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First (somewhat) working prototype with static image

This commit is contained in:
Marcus Scholz 2020-03-01 19:16:44 +01:00
parent c575da044f
commit f0f6363d8d
1 changed files with 23 additions and 23 deletions
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46
exif_rad.py
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@ -6,7 +6,6 @@ DateTimeOriginal from Exif tag to DateTime in a csv log
of a GeigerMuellerCounter."""
from datetime import datetime
# import math
from PIL import Image
import piexif
import piexif.helper
@ -25,33 +24,34 @@ SIFACTOR = 0.0065
# Temp constants
RAD = "0,15"
# Import GeigerCounter data
with open("testdata/TKRZ.hisdb.his", "r") as f:
for line in f:
if line[0] != '#':
columns = line.split(',')
csvrawtime = columns[1].lstrip()
csvrawcpm = columns[2].lstrip()
csvrawrad = round(float(csvrawcpm) * SIFACTOR, 2)
csvisotime = datetime.fromisoformat(csvrawtime)
# Print with 2 digits after dot and unit of measurement
print(csvisotime, csvrawrad, "µS/h")
# Load Image and EXIF data
im = Image.open("testdata/test.jpg")
im = Image.open("testdata/DSC_0183.JPG")
exif_dict = piexif.load(im.info["exif"])
picrawtime = exif_dict["Exif"][piexif.ExifIFD.DateTimeOriginal].decode('ASCII')
picisotime = datetime.strptime(picrawtime, "%Y:%m:%d %H:%M:%S")
print(picisotime)
print("Timestamp of image: ", picisotime)
# convert str to exif compatible string
new_comment = "Radiation ☢ " + RAD + " µS/h"
user_comment = piexif.helper.UserComment.dump(new_comment, encoding="unicode")
exif_dict["Exif"][piexif.ExifIFD.UserComment] = user_comment
# Import GeigerCounter log
with open("testdata/test.hisdb.his", "r") as f:
for line in f:
if line[0] != '#':
columns = line.split(',')
csvrawtime = columns[1].lstrip()
csvrawcpm = columns[2].lstrip()
csvisotime = datetime.fromisoformat(csvrawtime)
if csvisotime == picisotime:
rad = round(float(csvrawcpm) * SIFACTOR, 2)
print("Radiation at time of photo: ", rad, "µS/h")
# compile and write tags
print("Going to write comment: " + new_comment)
exif_bytes = piexif.dump(exif_dict)
#im.save("test.jpg", exif=exif_bytes)
# convert str to exif compatible string
new_comment = "Radiation ☢ " + str(rad) + " µS/h"
user_comment = piexif.helper.UserComment.dump(new_comment, encoding="unicode")
exif_dict["Exif"][piexif.ExifIFD.UserComment] = user_comment
# compile and write tags
print("Going to write comment: " + new_comment)
exif_bytes = piexif.dump(exif_dict)
im.save("testdata/test.jpg", exif=exif_bytes)