def Set_Values(cam, exposure, gain, blacklevel, automode):
"""sets the exposure time and gain of the camera"""
exposure = ueye.double(exposure)
expo = ueye.double()
gain = ueye.int(gain)
# sets the exposure time and gain with the values
# or sets them automatically
if automode is False:
ueye.is_SetHardwareGain(cam, gain, ueye.IS_IGNORE_PARAMETER,
ueye.IS_IGNORE_PARAMETER,
ueye.IS_IGNORE_PARAMETER)
ueye.is_Exposure(cam, ueye.IS_EXPOSURE_CMD_SET_EXPOSURE, exposure,
ueye.ueye.sizeof(exposure))
expo = exposure
ueye.is_Blacklevel(cam, ueye.IS_BLACKLEVEL_CMD_SET_OFFSET, blacklevel)
elif automode is True:
pval1 = ueye.double(1)
pval2 = ueye.double(0)
ueye.is_SetAutoParameter(cam, ueye.IS_SET_ENABLE_AUTO_GAIN, pval1,
pval2)
pval1 = ueye.double(1)
pval2 = ueye.double(0)
ueye.is_SetAutoParameter(cam, ueye.IS_SET_ENABLE_AUTO_SHUTTER, pval1,
pval2)
return Get_Values(cam.value, expo.value)
def __set_black_level(self, level):
bl = ueye.UINT(int(level))
if not ueye.is_Blacklevel(self.cam,
ueye.IS_BLACKLEVEL_CMD_SET_OFFSET, bl,
ueye.ctypes.sizeof(bl)) == ueye.IS_SUCCESS:
raise RuntimeError("IS_BLACKLEVEL_CMD_SET_OFFSET failed")
return bl.value
def Init_Cam(width=640, heigth=480, gain_boost=1):
"""inits the uEye camera"""
# inits next available cam
cam = ueye.HIDS(0)
ueye.is_InitCamera(cam, None)
ueye.is_EnableAutoExit(cam, ueye.IS_ENABLE_AUTO_EXIT)
# sets the Colourmode of the camera
ueye.is_SetColorMode(cam, ueye.IS_CM_SENSOR_RAW8)
# sets the trigger
ret = ueye.is_SetExternalTrigger(cam, ueye.IS_SET_TRIGGER_SOFTWARE)
mode = ueye.int(0)
# sets the blacklevel
ueye.is_Blacklevel(cam, ueye.IS_BLACKLEVEL_CMD_SET_MODE, mode,
ueye.sizeof(mode))
# sets the size of the image
rectAOI = ueye.IS_RECT()
rectAOI.s32X = 44
rectAOI.s32Y = 0
rectAOI.s32Width = 480
rectAOI.s32Height = 480
ueye.is_AOI(cam, ueye.IS_AOI_IMAGE_SET_AOI, rectAOI, ueye.sizeof(rectAOI))
# allocates memory with given size
width = ueye.int(width)
heigth = ueye.int(heigth)
bitspixel = ueye.int(8)
pcImgMem = ueye.c_mem_p()
pid = ueye.int()
ueye.is_AllocImageMem(cam, 480, heigth, bitspixel, pcImgMem, pid)
# sets the image memory as active
ueye.is_SetImageMem(cam, pcImgMem, pid)
# activates video mode
ueye.is_CaptureVideo(cam, ueye.IS_DONT_WAIT)
# sets gain boost mode
if gain_boost == 1:
ueye.is_SetGainBoost(cam, ueye.IS_SET_GAINBOOST_ON)
else:
ueye.is_SetGainBoost(cam, ueye.IS_SET_GAINBOOST_OFF)
return cam, ret, pcImgMem, pid
def configure(self, parameters):
# Exposure varies by camera: 0.020ms to 69.847 for UI-3250 model (check uEye cockpit for specifics)
# Gain (master) can be set between 0-100
# Black level can be set between 0-255
# Gamma can be set between 0.01 and 10
#Set dict keys to all lower case
parameters = dict((k.lower(), v) for k, v in parameters.items())
if 'exposure' in parameters:
#Doesn't do anything
err = ueye.is_Exposure(
self._cam, ueye.IS_EXPOSURE_CMD_SET_EXPOSURE,
ueye.DOUBLE(parameters['exposure']),
ueye.sizeof(ueye.DOUBLE(parameters['exposure'])))
if err != ueye.IS_SUCCESS:
raise CameraException(self._cam, 'ueye>configure>exposure>',
err)
if 'gain' in parameters:
err = ueye.is_SetHardwareGain(self._cam,
ueye.INT(parameters['gain']),
ueye.IS_IGNORE_PARAMETER,
ueye.IS_IGNORE_PARAMETER,
ueye.IS_IGNORE_PARAMETER)
if err != ueye.IS_SUCCESS:
raise CameraException(self._cam, 'ueye>configure>gain>', err)
if 'black_level' in parameters:
err = ueye.is_Blacklevel(
self._cam, ueye.IS_BLACKLEVEL_CMD_SET_OFFSET,
ueye.INT(parameters['black_level']),
ueye.sizeof(ueye.INT(parameters['black_level'])))
if err != ueye.IS_SUCCESS:
raise CameraException(self._cam, 'ueye>configure>black_level>',
err)
if 'gamma' in parameters:
# Digital gamma correction
err = ueye.is_Gamma(
self._cam, ueye.IS_GAMMA_CMD_SET,
ueye.INT(int(parameters['gamma'] * 100)),
ueye.sizeof(ueye.INT(int(parameters['gamma'] * 100))))
if err != ueye.IS_SUCCESS:
raise CameraException(self._cam, 'ueye>configure>gamma>', err)