Python - gphoto2：如何捕捉佳能 5D Mark IV 的图像

Question

我正在使用 gphoto2 从相机中捕捉照片

到目前为止，我可以使用命令行成功拍摄照片

command = ["sudo","gphoto2","--set-config","manualfocusdrive=6","--set-config","capturetarget=1","--capture-image"]
call(command)

但是，我无法使用 python 代码（来自example）拍摄照片

错误：

> WARNING: gphoto2: (gp_port_usb_close [libusb.c:325]) Invalid
> parameters: 'port && port->pl->dh' is NULL/FALSE. Capturing image
> Camera file path: //capt0000.jpg ('Copying image to',
> '/tmp/capt0000.jpg') Error: no "view" rule for type "image/jpeg"
> passed its test case
>        (for more information, add "--debug=1" on the command line) /usr/bin/xdg-open: 771: /usr/bin/xdg-open: www-browser: not found
> /usr/bin/xdg-open: 771: /usr/bin/xdg-open: links2: not found
> /usr/bin/xdg-open: 771: /usr/bin/xdg-open: elinks: not found
> /usr/bin/xdg-open: 771: /usr/bin/xdg-open: links: not found
> /usr/bin/xdg-open: 771: /usr/bin/xdg-open: lynx: not found
> /usr/bin/xdg-open: 771: /usr/bin/xdg-open: w3m: not found xdg-open: no
> method available for opening '/tmp/capt0000.jpg' WARNING: gphoto2:
> (ptp_usb_getresp [usb.c:482]) PTP_OC 0x911c receiving resp failed: PTP
> Device Busy (0x2019) WARNING: gphoto2:
> (camera_unprepare_canon_eos_capture [config.c:557])
> 'ptp_canon_eos_resetuilock (params)' failed: PTP Device Busy (0x2019)
> WARNING: gphoto2: (gp_port_usb_close [libusb.c:325]) Invalid
> parameters: 'port && port->pl->dh' is NULL/FALSE.

感谢任何建议。我对这个 gphoto2 很陌生。

Answer 1

脚本失败，因为“xdg-open”找不到照片查看器。您应该在“/tmp/capt0000.jpg”中有一张捕获的照片。

警告消息是典型的 libgphoto2 冗长，可以忽略。