Add preview files, timelapse preview, exif data read

Hardware_control/PiCameraApp Link.txt

@@ -0,0 +1 @@
+https://github.com/chepo92/PiCameraApp/

Hardware_control/camera_preview.py

@@ -0,0 +1,123 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Reference: http://picamera.readthedocs.io/en/release-1.10/index.html
+
+from picamera import PiCamera
+from time import sleep
+from datetime import timedelta
+import datetime
+
+# Basic procedure as in point 3.5 Capturing consistent images  from readthedocs.io
+
+# 1 Create Camera instance 
+camera = PiCamera()
+# The Pi’s camera has three ports, the still port (for images), the video port (recording), and the preview port.
+# Their output is independet so 
+
+# 2 Set resolution
+camera.resolution=(960,720) 	# Retrieves or sets the resolution at which image captures, video recordings, and previews will be captured.
+
+# 3 Set frame rate
+camera.framerate = 1 # frames/sec, determines the max shutter speed
+
+# 4 Set ISO to the desired value
+camera.iso = 500    # Retrieves or sets the apparent ISO setting of the camera.
+
+# 5 Fix the ss
+camera.shutter_speed = 300000 #e
+
+# 6 Wait for the automatic gain control to settle (Analog and Digital Gain)
+sleep(5)
+
+# Notice: we will skip step 7 as we need the automatic analog and digital gains for live previewing
+# as capture and preview use different ports disabling Auto gains now will give a correct captured image but a
+# probably dark preview. Uncomment if you are just capturing and not previewing
+
+# 7 Turn off automatic gain (fix AG and DG) 
+#camera.exposure_mode = 'off'
+
+# 8 Disable AWB gain control
+camera.awb_mode = 'off'
+
+# 9 Now fix the Red & Blue gains
+camera.awb_gains = [1.0,1.0]
+
+
+# Advanced camera users:
+# -------------------------------------------------------------
+# These are other possible parameters to change, depending on experiment:
+
+#camera.analog_gain       			# Retrieves the current analog gain of the camera.
+#camera.awb_gains = [1,1] 			# Gets or sets the auto-white-balance gains of the camera. [red, blue]. This attribute only has an effect when awb_mode is set to 'off'.
+#camera.awb_mode = 'off'    		        # Retrieves or sets the auto-white-balance mode of the camera.
+#camera.brightness = 50				# Retrieves or sets the brightness setting of the camera. [0,100]
+#camera.color_effects=None			# Retrieves or sets the current color effect applied by the camera.
+#camera.contrast = 0        		        # Retrieves or sets the contrast setting of the camera. Useful to take reduce the background
+#camera.digital_gain				# Retrieves the current digital gain of the camera.
+#camera.exposure_compensation=0  	        # Retrieves or sets the exposure compensation level of the camera.
+#camera.exposure_mode = 'off'	 	        # Retrieves or sets the exposure mode of the camera.
+#camera.exposure_speed				# Retrieves the current shutter speed of the camera.
+#camera.framerate = 0.01			# Retrieves or sets the framerate at which video-port based image captures, video recordings, and previews will run.
+#camera.image_denoise				# Retrieves or sets whether denoise will be applied to image captures. Default true
+#camera.image_effect='none'
+#camera.image_effect_params
+#camera.meter_mode
+#camera.rotation = 90  				# Retrieves or sets the current rotation of the camera’s image.
+#camera.saturation = 0  			# Retrieves or sets the saturation setting of the camera. 
+#camera.sensor_mode				# Retrieves or sets the input mode of the camera’s sensor. setting this property does nothing unless the camera has been initialized with a sensor mode other than 0.
+#camera.sharpness = 0 				# Retrieves or sets the sharpness setting of the camera. [-100, 100]
+#camera.shutter_speed = 500000 		        # Retrieves or sets the shutter speed of the camera in microseconds.
+
+# alpha window transparency 
+#alpha =0
+#camera.start_preview(alpha =200)
+# -------------------------------------------------------------
+
+
+# 10 Start preview
+camera.start_preview()
+
+# Wait for "Intro" input 
+raw_input('Wait for the preview window, then press enter to take photo and close preview: ')
+
+# 7 Turn off automatic gain (fix AG and DG) 
+camera.exposure_mode = 'off'
+
+# 11 Take Picture
+# Any attempt to capture an image without using the video port optiob will (temporarily)
+# select the 2592x1944 mode while the capture is performed (this is what causes
+# the flicker you sometimes see when a preview is running while a still image is captured).
+datestr = datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+fname = "preview_" + datestr + ".png"
+camera.capture(fname, 'png')  # use_video_port defaults to False which means that the camera’s image port is used. This port is slow but produces better quality pictures.
+
+# Query shutter speed value
+e = camera.exposure_speed
+print('Shutter Speed: ' + str(e))
+
+# Query AWB gains
+g = camera.awb_gains
+print('AWB gains ' + str(g))
+
+# Query iso
+i = camera.iso
+print('ISO ' + str(i))
+
+# Query A gain
+a=camera.analog_gain
+print('A Gain ' + str(a))
+
+# Query D gains
+d=camera.digital_gain
+print('D Gain ' + str(d))
+
+b=camera.brightness
+print('brightness ' + str(b))
+
+c=camera.contrast
+print('contrast ' + str(c))
+
+camera.stop_preview()
+
+camera.close()

Hardware_control/readEXIF.py

@@ -0,0 +1,6 @@
+from PIL import Image
+from PIL.ExifTags import TAGS
+img = Image.open('s.jpg')
+exif_data = img._getexif()
+for tag, value in exif_data.items():
+  print TAGS.get(tag, tag), value

Hardware_control/timelapse.py

@@ -18,8 +18,8 @@
 if len(sys.argv)==5:
     folder = str(sys.argv[1])            # e.g. Timelapse
     filename = str(sys.argv[2])          # e.g. im_exp1
-    interval = int(sys.argv[3])     # wait time in seconds e.g. 1800
-    steps = int(sys.argv[4])        # number of images   e.g 200
+    interval = int(sys.argv[3])     	 # wait time in seconds e.g. 1800
+    steps = int(sys.argv[4])        	 # number of images   e.g 200
 else:
     print ("Required parameters: folder name, filename, interval (secs), number of steps.")
     sys.exit()
@@ -30,31 +30,99 @@
 # make the folder if it doesn't exist
 if os.path.exists(folder) == False:
     os.mkdir(folder)
-
-# Minimal camera settings
-camera.resolution=(960,720)
-camera.ISO=400
-camera.framerate = 1 # frames/sec, determines the max shutter speed
-camera.shutter_speed = 200000 # exposure time in microsecs
-camera.exposure_mode = 'off' #'fixedfps'
-camera.awb_gains = [1,1]
+
+#Variables
+#hRes = 960
+#vRes = 720
+fr = 1
+iso = 500
+ss= 300000
+redG = 1.0
+blueG = 1.0
+b= 50
+c= 0 
+
+# Basic procedure as in point 3.5 Capturing consistent images  from readthedocs.io
+
+# 1 Create Camera instance 
+camera = PiCamera()
+# The Pi’s camera has three ports, the still port (for images), the video port (recording), and the preview port.
+# Their output is independet so 
+
+# 2 Set resolution
+camera.resolution=(960,720) 	# Retrieves or sets the resolution at which image captures, video recordings, and previews will be captured.
+
+# 3 Set frame rate
+camera.framerate = fr # frames/sec, determines the max shutter speed
+
+# 4 Set ISO to the desired value
+camera.iso = iso    # Retrieves or sets the apparent ISO setting of the camera.
+
+# 5 Fix the ss
+camera.shutter_speed = ss #e
+
+# 6 Wait for the automatic gain control to settle (Analog and Digital Gain)
+sleep(5)
+
+# Notice: we will skip step 7 as we need the automatic analog and digital gains for live previewing
+# as capture and preview use different ports disabling Auto gains now will give a correct captured image but a
+# probably dark preview. Uncomment if you are just capturing and not previewing
+
+# 7 Turn off automatic gain (fix AG and DG) 
+# camera.exposure_mode = 'off'
+
+# 8 Disable AWB gain control
 camera.awb_mode = 'off'
 
+# 9 Now fix the Red & Blue gains
+camera.awb_gains = [redG,blueG]
+
+
 # Advanced camera users:
 # -------------------------------------------------------------
 # These are other possible parameters to change, depending on experiment:
-#camera.analog_gain = 1
-#camera.digital_gain=1
-#camera.brightness = 50
-#camera.sharpness = 0
-#camera.contrast = 0              # useful to take reduce the background
-#camera.saturation = 0
-#camera.exposure_compensation=0
+
+#camera.analog_gain       			# Retrieves the current analog gain of the camera.
+#camera.awb_gains = [1,1] 			# Gets or sets the auto-white-balance gains of the camera. [red, blue]. This attribute only has an effect when awb_mode is set to 'off'.
+#camera.awb_mode = 'off'    		# Retrieves or sets the auto-white-balance mode of the camera.
+#camera.brightness = 50				# Retrieves or sets the brightness setting of the camera. [0,100], Default 50
+#camera.color_effects=None			# Retrieves or sets the current color effect applied by the camera.
+#camera.contrast = 0        		# Retrieves or sets the contrast setting of the camera. Useful to take reduce the background [0,100]. Default 0 
+#camera.digital_gain				# Retrieves the current digital gain of the camera.
+#camera.exposure_compensation=0  	# Retrieves or sets the exposure compensation level of the camera.
+#camera.exposure_mode = 'off'	 	# Retrieves or sets the exposure mode of the camera.
+#camera.exposure_speed				# Retrieves the current shutter speed of the camera.
+#camera.framerate = 0.01			# Retrieves or sets the framerate at which video-port based image captures, video recordings, and previews will run.
+#camera.image_denoise				# Retrieves or sets whether denoise will be applied to image captures. Default true
 #camera.image_effect='none'
-#camera.color_effects=None
-#camera.framerate = 0.01
-#camera.exposure_speed
+#camera.image_effect_params
+#camera.meter_mode
+#camera.rotation = 90  				# Retrieves or sets the current rotation of the camera’s image.
+#camera.saturation = 0  			# Retrieves or sets the saturation setting of the camera. 
+#camera.sensor_mode					# Retrieves or sets the input mode of the camera’s sensor. setting this property does nothing unless the camera has been initialized with a sensor mode other than 0.
+#camera.sharpness = 0 				# Retrieves or sets the sharpness setting of the camera. [-100, 100]
+#camera.shutter_speed = 500000 		# Retrieves or sets the shutter speed of the camera in microseconds.
+
+# alpha window transparency 
+# alpha =0
+# camera.start_preview(alpha =200)
+# -------------------------------------------------------------
 
+# 10 Start preview
+camera.start_preview()
+
+# Wait for "Intro" input 
+raw_input('Wait for the preview window, then press enter to take photo and close preview: ')
+
+# 7 Turn off automatic gain (fix AG and DG) 
+camera.exposure_mode = 'off'
+
+#12 Stop preview
+camera.stop_preview() 
+
+# -------------------------------------------------------------
+
+
 # Save this file with the data (to record settings etc.)
 scriptpath = os.path.dirname(os.path.realpath(__file__))
 copyfile(os.path.join(scriptpath, sys.argv[0]), os.path.join(folder, 'script.py'))
@@ -70,8 +138,8 @@
     GPIO.output(29,GPIO.HIGH)
 
     datestr = datetime.datetime.now().strftime("%Y-%m-%d-%H_%M_%S")
-    fname = os.path.join(folder, datestr + "_" + filename + "_%04d.jpg"%(i))
-    camera.capture(fname)
+    fname = os.path.join(folder, datestr + "_" + filename + "_%04d.png"%(i))
+    camera.capture(fname,'png')
 
     #turn the LEDs off
     GPIO.output(29,GPIO.LOW)

sh.exe.stackdump

@@ -0,0 +1,9 @@
+Exception: STATUS_STACK_OVERFLOW at rip=00076E0BF37
+rax=0000000000001250 rbx=00000000FFFFAE70 rcx=0000000000000000
+rdx=0000000180010018 rsi=00000000FFFFAE78 rdi=000000018028E980
+r8 =00000000003B4962 r9 =000000018028E980 r10=00000000FFFF9000
+r11=00000000FFE031F0 r12=0000000000000420 r13=00000000FFFFAD50
+r14=000000018022F490 r15=00000000FFFFACF0
+rbp=000000000000026C rsp=00000000FFFFABC8
+program=C:\Users\Axel\AppData\Local\GitHubDesktop\app-1.2.6\resources\app\git\usr\bin\sh.exe, pid 7864, thread 
+cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B