Capture a pic with gphoto2 then exit...
Jeff Moe
parent
4919535c9c
commit
aae8b82db6
190
gacquire.py
190
gacquire.py
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@ -1,5 +1,7 @@
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#!/usr/bin/env python
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#!/usr/bin/env python3
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# gacquire - gphoto3 interface to stphot.
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#
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# python-gphoto2 - Python interface to libgphoto2
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# http://github.com/jim-easterbrook/python-gphoto2
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# Copyright (C) 2015-22 Jim Easterbrook jim@jim-easterbrook.me.uk
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@ -25,7 +27,17 @@ import sys
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import gphoto2 as gp
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def main():
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import argparse
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import os
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import sys
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import json
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import time
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import cv2
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import zwoasi as asi
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import numpy as np
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from stphot.io import write_fits_file
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def gcapture():
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locale.setlocale(locale.LC_ALL, '')
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logging.basicConfig(
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format='%(levelname)s: %(name)s: %(message)s', level=logging.WARNING)
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@ -40,9 +52,179 @@ def main():
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camera_file = camera.file_get(
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file_path.folder, file_path.name, gp.GP_FILE_TYPE_NORMAL)
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camera_file.save(target)
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subprocess.call(['xdg-open', target])
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camera.exit()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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# Parse arguments
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parser = argparse.ArgumentParser(
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description="Capture images with a DSLR gphoto2 camera")
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parser.add_argument("-s", "--settings", help="JSON file with settings", default="settings.json")
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parser.add_argument("-p", "--path", help="Output path", default=None)
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# parser.add_argument("-t", "--exptime", help="Exposure time [seconds]", type=float, default=None)
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# parser.add_argument("-g", "--gain", help="Gain", type=int, default=None)
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# parser.add_argument("-b", "--bin", help="Binning factor", type=int, default=None)
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parser.add_argument("-n", "--number", help="Number of images to acquire", type=int, default=None)
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# parser.add_argument("-F", "--format", help="Data format [RAW8, RAW16, RGB24]", default=None)
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parser.add_argument("-l", "--live", action="store_true", help="Display live image while capturing")
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parser.add_argument("-w", "--wait", help="Wait time between exposures [seconds]", type=float, default=0)
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parser.add_argument("-d", "--dslr", help="DSLR with gphoto2", type=bool, default=False)
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args = parser.parse_args()
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# Check arguments
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if args.settings == None or args.path == None:
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parser.print_help()
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sys.exit()
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# Read settings
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try:
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with open(args.settings, "r") as fp:
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settings = json.load(fp)
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except Exception as e:
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print(e)
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sys.exit(1)
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# Override settings
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# if args.exptime is not None:
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# settings["exposure"] = f"{int(float(args.exptime) * 1000)}"
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# if args.gain is not None:
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# settings["gain"] = f"{args.gain}"
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# if args.bin is not None:
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# settings["bin"] = f"{args.bin}"
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# if args.format is not None:
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# if args.format == "RAW8":
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# settings["type"] = f"{asi.ASI_IMG_RAW8}"
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# elif args.format == "RAW16":
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# settings["type"] = f"{asi.ASI_IMG_RAW16}"
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# elif args.format == "RGB24":
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# settings["type"] = f"{asi.ASI_IMG_RGB24}"
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# Number of images
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if args.number is not None:
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nimg = args.number
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else:
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nimg = 6
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# Check path
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path = os.path.abspath(args.path)
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if not os.path.exists(path):
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os.makedirs(path)
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# Intialize SDK library
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# try:
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# asi.init(os.getenv("ZWO_ASI_LIB"))
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# except Exception as e:
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# print(e)
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# sys.exit(1)
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# Find cameras
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ncam = len(gp.Camera.autodetect())
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if ncam == 0:
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print("No gphoto2 cameras found")
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sys.exit(1)
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# Decode settings
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# texp_us = 1000 * int(settings["exposure"])
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# gain = int(settings["gain"])
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# Initialize camera 0
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camera = gp.Camera()
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camera.init()
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#camera_info = camera.get_camera_property()
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camera_info = camera.get_summary()
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print(camera_info)
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# Set control values
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# camera.set_control_value(asi.ASI_BANDWIDTHOVERLOAD, int(settings["usb"]))
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# camera.set_control_value(asi.ASI_EXPOSURE, texp_us, auto=False)
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# camera.set_control_value(asi.ASI_GAIN, gain, auto=False)
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# camera.set_control_value(asi.ASI_WB_B, int(settings["wbb"]))
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# camera.set_control_value(asi.ASI_WB_R, int(settings["wbr"]))
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# camera.set_control_value(asi.ASI_GAMMA, int(settings["gamma"]))
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# camera.set_control_value(asi.ASI_BRIGHTNESS, int(settings["brightness"]))
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# camera.set_control_value(asi.ASI_FLIP, int(settings["flip"]))
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# camera.set_control_value(asi.ASI_AUTO_MAX_BRIGHTNESS, 80)
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# camera.disable_dark_subtract()
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# camera.set_roi(bins=int(settings["bin"]))
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# Force any single exposure to be halted
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#try:
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# camera.stop_video_capture()
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# camera.stop_exposure()
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#except (KeyboardInterrupt, SystemExit):
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# raise
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#except:
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# pass
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# Set image format
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# if int(settings["type"]) == asi.ASI_IMG_RAW8:
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# camera.set_image_type(asi.ASI_IMG_RAW8)
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# elif int(settings["type"]) == asi.ASI_IMG_RGB24:
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# camera.set_image_type(asi.ASI_IMG_RGB24)
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# elif int(settings["type"]) == asi.ASI_IMG_RAW16:
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# camera.set_image_type(asi.ASI_IMG_RAW16)
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# else:
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# camera.set_image_type(asi.ASI_IMG_RAW8)
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# Forever loop
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for i in range(nimg):
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print(f"Capturing image {i} of {nimg}")
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# Capture frame
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t0 = time.time()
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# XXX
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img = camera.capture(gp.GP_CAPTURE_IMAGE)
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exit()
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# Display Frame
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if args.live is True:
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cv2.imshow("Capture", img)
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cv2.waitKey(1)
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# Get settings
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camera_settings = camera.get_control_values()
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# Extract settings
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# texp_us = camera_settings["Exposure"]
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# texp = float(texp_us) / 1000000
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# gain = camera_settings["Gain"]
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# temp = float(camera_settings["Temperature"]) / 10
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# Format start time
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nfd = "%s.%03d" % (time.strftime("%Y-%m-%dT%T",
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time.gmtime(t0)), int((t0 - np.floor(t0)) * 1000))
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# print(nfd, texp, gain, temp)
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# Store FITS file
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# write_fits_file(os.path.join(path, "%s.fits" % nfd), np.flipud(img), nfd, texp, gain, temp)
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write_fits_file(os.path.join(path, "%s.fits" % nfd), np.flipud(img), nfd)
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#print(settings["type"], asi.ASI_IMG_RAW8, asi.ASI_IMG_RGB24, asi.ASI_IMG_RAW16)
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# Get RGB image
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if int(settings["type"]) == asi.ASI_IMG_RAW8:
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ny, nx = img.shape
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rgb_img = cv2.cvtColor(img, cv2.COLOR_BAYER_BG2BGR)
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elif int(settings["type"]) == asi.ASI_IMG_RGB24:
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ny, nx, nc = img.shape
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rgb_img = img
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elif int(settings["type"]) == asi.ASI_IMG_RAW16:
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ny, nx = img.shape
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img_8bit = np.clip((img/256).astype("uint8"), 0, 255)
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rgb_img = cv2.cvtColor(img_8bit, cv2.COLOR_BAYER_BG2BGR)
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# Store image
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cv2.imwrite(os.path.join(path, "%s.jpg" % nfd), rgb_img)
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# Wait
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if args.wait > 0:
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time.sleep(args.wait)
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# Stop capture
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camera.stop_video_capture()
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# Release device
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if args.live is True:
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cv2.destroyAllWindows()
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