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Added proper Exposure adjustment

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This commit is contained in:
BKLronin 2023-03-24 15:37:52 +01:00
parent e77d20900b
commit 810297ac46
1 changed files with 59 additions and 15 deletions
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picamburst.py
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@ -1,6 +1,7 @@
#!//usr/bin/python3
import numpyHDR
from PIL import Image
from picamera2 import Picamera2
from libcamera import controls
import time
@ -8,21 +9,64 @@ import time
picam2 = Picamera2()
config = picam2.create_still_configuration()
picam2.configure(config)
picam2.set_controls({"AwbEnable": 1})
picam2.set_controls({"AeEnable": 1})
#picam2.set_controls({"AnalogueGain": 1.0})
picam2.start()
time.sleep(1)
ctrls = controls(picam2)
ctrls.AwbEnable = 1
ctrls.AeEnable = 1
ctrls.ConstraintModeEnum.Highlight
np_array_ev0 = picam2.capture_array()
#picam2.set_controls({"AwbEnable": 1, "AeEnable": 1, "AeConstraintMode": controls.AeConstraintModeEnum.Shadows})
#np_array_ev1 = picam2.capture_array()
#picam2.set_controls({"AwbEnable": 1, "AeEnable": 1, "AeConstraintMode": controls.AeConstraintModeEnum.Normal})
#np_array_ev_neg1 = picam2.capture_array()
meta = "nichts"
picam2.helpers.save(np_array_ev0, meta, "1.jpg")
#picam2.helpers.save(np_array_ev1, meta ,"2.jpg")
#picam2.helpers.save(np_array_ev_neg1, meta, "3.jpg")
picam2.stop()
print(picam2.capture_metadata())
start = picam2.capture_metadata()
exposure_start = start["ExposureTime"]
gain_start = start["AnalogueGain"]
ev1 = picam2.capture_array()
print("Picture one is done")
picam2.set_controls({"AeEnable": 0})
confirmed = picam2.capture_metadata()["AeLocked"]
while confirmed != True:
confimed = picam2.capture_metadata()["AeLocked"]
time.sleep(.1)
picam2.set_controls({"AnalogueGain": gain_start})
confirmed = picam2.capture_metadata()["AnalogueGain"]
while confirmed != gain_start in range(gain_start -0.1, gain_start +0.1):
confimed = picam2.capture_metadata()["AnalogueGain"]
time.sleep(.1)
ev_low = int(exposure_start / 4)
picam2.set_controls({"ExposureTime": ev_low})
confirmed = picam2.capture_metadata()["ExposureTime"]
while confirmed not in range(ev_low -100, ev_low + 100 ):
confirmed = picam2.capture_metadata()["ExposureTime"]
time.sleep(.01)
print("2",confirmed)
ev2 = picam2.capture_array()
print("Picture 2 is captured to array")
ev_high = int(exposure_start * 4)
picam2.set_controls({"ExposureTime": ev_high})
confirmed = picam2.capture_metadata()["ExposureTime"]
while confirmed not in range(ev_high -100, ev_high + 100 ):
confirmed = picam2.capture_metadata()["ExposureTime"]
time.sleep(.01)
print("3",confirmed)
ev3 = picam2.capture_array()
print("Picture 3 is captured")
print("Saving..")
image = Image.fromarray(ev1)
image.save(f"test_hdr0.jpg", quality=50)
image = Image.fromarray(ev2)
image.save(f"test_hdr1.jpg", quality=50)
image = Image.fromarray(ev3)
image.save(f"test_hdr2.jpg", quality=50)
picam2.stop()