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This commit is contained in:
Joel Collins 2020-09-07 16:31:59 +01:00
parent 0bff4bdb62
commit 54c342bbbb
10 changed files with 122 additions and 99 deletions
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10
openflexure_microscope/camera/set_picamera_gain.py
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@ -1,8 +1,8 @@
from __future__ import print_function
import picamera
from picamera import mmal, mmalobj, exc
from picamera.mmalobj import to_rational
import picamerax
from picamerax import mmal, mmalobj, exc
from picamerax.mmalobj import to_rational
import time
import logging
@ -13,7 +13,7 @@ MMAL_PARAMETER_DIGITAL_GAIN = mmal.MMAL_PARAMETER_GROUP_CAMERA + 0x5A
def set_gain(camera, gain, value):
"""Set the analog gain of a PiCamera.
camera: the picamera.PiCamera() instance you are configuring
camera: the picamerax.PiCamera() instance you are configuring
gain: either MMAL_PARAMETER_ANALOG_GAIN or MMAL_PARAMETER_DIGITAL_GAIN
value: a numeric value that can be converted to a rational number.
"""
@ -42,7 +42,7 @@ def set_digital_gain(camera, value):
if __name__ == "__main__":
with picamera.PiCamera() as cam:
with picamerax.PiCamera() as cam:
cam.start_preview(fullscreen=False, window=(0, 50, 640, 480))
time.sleep(2)