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use stderr
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@scivision
scivision committed Aug 27, 2015
1 parent 70e5626 commit cbdb730
Showing 1 changed file with 37 additions and 36 deletions.
73 changes: 37 additions & 36 deletions sumixapi.py
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Expand Up @@ -14,16 +14,17 @@
from numpy import asarray, atleast_1d, clip
from os.path import join,isfile
from platform import system
from warnings import warn

if system().lower()=='windows':
DLL = join('c:\\','Sumix','SMX-M8x USB2.0 Camera','API','SMXM8X.dll')
else:
exit('*** this driver made only for Windows, you appear to be running ' + system() )
raise ImportError('*** this driver made only for Windows, you appear to be running ' + system() )

if isfile(DLL):
print('using ' + DLL)
else:
exit('could not find driver file ' + DLL)
raise ImportError('could not find driver file ' + DLL)

class Camera:
def __init__(self, width=None,height=None, decim=None, tenbit=None,
Expand Down Expand Up @@ -111,18 +112,18 @@ def setParams(self,width,height,decim,startx,starty, mirrorv, mirrorh): #Set cam
self.openCamera()
rc = self.dll.CxSetScreenParams(self.h, ct.byref(params))
if rc == 0:
print('** CxSetScreenParams: problem setting parameter choices')
warn('CxSetScreenParams: problem setting parameter choices')
else:
rc = self.dll.CxActivateScreenParams(self.h)
if rc == 0:
print('** CxActivateScreenParams: Problem activating parameters')
warn('CxActivateScreenParams: Problem activating parameters')
self.closeCamera()
#%%
def openCamera(self, cid=None): #attempt initial connection to camera
if not self.isopen:
self.h = self.dll.CxOpenDevice(cid)
if self.h == -1:
exit("*** Camera not found on open attempt with " + str(DLL))
raise TypeError("Camera not found on open attempt with " + str(DLL))
else:
self.isopen = True

Expand All @@ -144,13 +145,13 @@ def setFrequency(self,freqbyte):
elif freqbyte == 0: #12MHz
freq = ct.c_byte(0)
else:
print('*** I can only accept 1->24MHz or 0->12MHz to set sensor frequency')
warn('I can only accept 1->24MHz or 0->12MHz to set sensor frequency')
return

self.openCamera()
rc = self.dll.CxSetFrequency(self.h,freq) #not ct.byref()
if rc == 0:
print("** CxSetFrequency: Unable to set sensor frequency ")
warn("CxSetFrequency: Unable to set sensor frequency ")
self.closeCamera()

def getFrequency(self):
Expand All @@ -159,7 +160,7 @@ def getFrequency(self):
rc = self.dll.CxGetFrequency(self.h, ct.byref(freq))
self.closeCamera()
if rc == 0:
print("*** CxGetFrequency: Unable to get sensor frequency")
warn("CxGetFrequency: Unable to get sensor frequency")
return None

freq = freq.value
Expand All @@ -169,7 +170,7 @@ def getFrequency(self):
elif freq==1:
return '24 MHz'
else:
print('** CxGetFrequency: unknown response to CxGetFrequency')
warn('CxGetFrequency: unknown response to CxGetFrequency')
return None
#%%
def getExposureMinMax(self):
Expand All @@ -178,7 +179,7 @@ def getExposureMinMax(self):
rc = self.dll.CxGetExposureMinMaxMs(self.h, ct.byref(emin), ct.byref(emax))
self.closeCamera()
if rc == 0:
print("** CxGetExposureMinMaxMs: Unable to get min/max exposure")
warn("CxGetExposureMinMaxMs: Unable to get min/max exposure")
return None, None

return emin.value, emax.value
Expand All @@ -189,23 +190,23 @@ def getExposure(self): # get comera exposure in milliseconds
rc = self.dll.CxGetExposureMs(self.h, ct.byref(exp))
self.closeCamera()
if rc==0:
print("*** CxGetExposureMs: Unable to get exposure")
warn("CxGetExposureMs: Unable to get exposure")
return None

return exp.value

def setExposure(self, expreq): # set comera exposure in milliseconds
if expreq is not None:
if expreq<0:
print('** ignoring exposure request, it must be a positive number')
warn('ignoring exposure request, it must be a positive number')
return

exp = ct.c_float()
self.openCamera()
rc = self.dll.CxSetExposureMs(self.h, ct.c_float(expreq), ct.byref(exp))
self.closeCamera()
if rc==0:
print("** CxSetExposureMs: Unable to set exposure=" + str(expreq))
warn("CxSetExposureMs: Unable to set exposure=" + str(expreq))
#%%
def getGain(self):
gg1 = ct.c_int32()
Expand All @@ -218,7 +219,7 @@ def getGain(self):
ct.byref(gg2),ct.byref(gb))
self.closeCamera()
if rc == 0:
print('** CxGetGain: could not read gain.')
warn('CxGetGain: could not read gain.')
return None
return {'g1':gg1.value, 'gr':gr.value, 'gg2':gg2.value, 'gb':gb.value}

Expand All @@ -238,7 +239,7 @@ def setGain(self,greq):
self.closeCamera()

if rc == 0:
print('** CxSetGain: could not set gain.')
warn('CxSetGain: could not set gain.')
return None
#confirm gain setting
rgain = self.getGain()
Expand All @@ -257,7 +258,7 @@ def setAllGain(self, gainreq): #sets gain for all colors simultaneously
rc = self.dll.CxSetAllGain(self.h,gain)
self.closeCamera()
if rc==0:
print('** unable to set gain ' + str(gainreq))
warn('unable to set gain ' + str(gainreq))
return None
#confirm gain setting
rgain = self.getGain()
Expand All @@ -275,9 +276,9 @@ def setBrightnessContrastGamma(self,bright,contrast,gamma):
rc = self.dll.CxSetBrightnessContrastGamma(self.h,b,c,g)
self.closeCamera()
if rc==0:
print('** CxSetBrightnessContrastGamma: problem setting')
warn('CxSetBrightnessContrastGamma: problem setting')
else:
print('brightness, contrast, and gamma must be in -127..127')
warn('brightness, contrast, and gamma must be in -127..127')
#%%
def getConversionTable(self):
"""
Expand All @@ -289,7 +290,7 @@ def getConversionTable(self):
rc = self.dll.CxGetConvertionTab(self.h,ct.byref(tbuf))
self.closeCamera()
if rc==0:
print('** trouble getting 10-8 bit conversion table')
warn('trouble getting 10-8 bit conversion table')
return None
return asarray(tbuf)

Expand All @@ -301,7 +302,7 @@ def startStream(self): # begin streaming acquisition
rc = self.dll.CxSetStreamMode(self.h, ct.c_byte(1))
#leave connection open for streaming
if rc==0:
print('** CxSetStreamMode: unable to start camera stream')
warn('CxSetStreamMode: unable to start camera stream')

def stopStream(self): # end streaming acquisition
if True: #self.getStreamMode(): #this call crashes camera
Expand All @@ -310,7 +311,7 @@ def stopStream(self): # end streaming acquisition
rc=self.dll.CxSetStreamMode(self.h, ct.c_byte(0))
self.closeCamera()
if rc==0:
print('** CxSetStreamMode: unable to stop camera stream')
warn('CxSetStreamMode: unable to stop camera stream')

def getStreamMode(self):
"""
Expand All @@ -321,7 +322,7 @@ def getStreamMode(self):
rc=self.dll.CxGetStreamMode(self.h, ct.byref(smode)) #pointer didn't help
self.closeCamera()
if rc==0:
print('** CxGetStreamMode: problem checking stream status')
warn('CxGetStreamMode: problem checking stream status')
return None
return bool(smode)
#%%
Expand All @@ -339,7 +340,7 @@ def grabFrame(self): #grab latest frame in stream

rc = self.dll.CxGrabVideoFrame(self.h, ct.byref(imbuffer), bufferbytes)
if rc==0:
print("** CxGrabVideoFrame: problem getting frame")
warn("CxGrabVideoFrame: problem getting frame")
return None

return asarray(imbuffer).reshape((self.ypix,self.xpix), order='C')
Expand All @@ -350,28 +351,28 @@ def get10BitsOutput(self): #8 or 10 bits
rc = self.dll.CxGet10BitsOutput(self.h, ct.byref(getbit))
self.closeCamera()
if rc==0:
print("** CxGet10BitsOutput: Error getting bit mode")
warn("CxGet10BitsOutput: Error getting bit mode")
return None
return getbit.value

def set10BitsOutput(self,useten): #False=8 bit, True=10bit
if not useten in (0,1):
print('*** valid input is 0 for 8-bit, or 1 for 10-bit')
warn('valid input is 0 for 8-bit, or 1 for 10-bit')
return

self.openCamera()
rc = self.dll.CxSet10BitsOutput(self.h, ct.c_bool(useten))
self.closeCamera()
if rc==0:
print("** CxSet10BitsOutput: Error setting bit mode")
warn("CxSet10BitsOutput: Error setting bit mode")
#%%
def getParams(self):
params = _TFrameParams()
self.openCamera()
rc = self.dll.CxGetScreenParams(self.h, ct.byref(params))
self.closeCamera()
if rc==0:
print('** CxGetScreenParams: error getting params')
warn('CxGetScreenParams: error getting params')
return None
return params

Expand All @@ -381,7 +382,7 @@ def getCameraInfoEx(self):
rc = self.dll.CxGetCameraInfoEx(self.h, ct.byref(det))
self.closeCamera()
if rc==0:
print('** CxGetCameraInfoEx: error getting camera info')
warn('CxGetCameraInfoEx: error getting camera info')
return None
return det

Expand All @@ -394,7 +395,7 @@ def getCameraInfo(self):
rc = self.dll.CxGetCameraInfo(self.h, ct.byref(det))
self.closeCamera()
if rc == 0:
print('** CxGetCameraInfo: Error getting camera info')
warn('CxGetCameraInfo: Error getting camera info')
return None
#print((det.MaxWidth, det.MaxHeight))
return det
Expand All @@ -405,7 +406,7 @@ def getFrameCounter(self):
rc=self.dll.CxGetFrameCounter(self.h, ct.byref(count)) #pointer didn't help
self.closeCamera()
if rc==0:
print('** CxGetFrameCounter: problem checking frame number')
warn('CxGetFrameCounter: problem checking frame number')
return None
return count.value

Expand All @@ -416,7 +417,7 @@ def guiStartVideo(self,hwnd):
#setStreamMode NOT needed per API doc
rc = self.dll.CxStartVideo(self.h,hwnd)
if rc==0:
print('** CxStartVideo experiment had problem')
warn('CxStartVideo experiment had problem')

#%%
"""
Expand Down Expand Up @@ -454,13 +455,13 @@ def BayerToRgb(self,bayerimg, bayerint):
if bayerimg is None: return None

if bayerimg.ndim != 2:
print('only accepts 2-D mosaiced images')
warn('only accepts 2-D mosaiced images')
return None

if not bayerint in range(6):
print('** bayer mode must be in 0,1,2,3,4,5')
print('0: monochrome , 1: nearest neighbor, 2: bilinear' +
'3:Laplacian, 4:Real Monochrome, 5:Bayer Average')
warn('bayer mode must be in 0,1,2,3,4,5')
print('0: monochrome , 1: nearest neighbor, 2: bilinear'
'3:Laplacian, 4:Real Monochrome, 5:Bayer Average')
return None

"""
Expand All @@ -480,7 +481,7 @@ def BayerToRgb(self,bayerimg, bayerint):
Width, Height, BayerAlg,
ct.byref(outbuffer))
if rc==0:
print('could not convert image'); return None
warn('could not convert image'); return None

# this is a BGR array if color
dimg = asarray(outbuffer).reshape((h,w,3), order='C')
Expand Down

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