저는 20달러짜리 휴대용 USB 현미경을 구입했습니다.
비디오는 를 사용하여 640x480에서 작동 webcamoid하지만 현미경은 1920x1080의 정지 이미지를 지원해야 합니다.
내 생각엔 단순히 잘못된 소프트웨어를 실행한 것 같습니다. (그리고 그 webcamoid정지 이미지는 비디오 스트림에서 프레임을 가져오는 것일 뿐이므로 640x480만 제공합니다.)
정지영상을 고해상도로 촬영하려면 어떻게 해야 합니까?
$ lsusb
Bus 003 Device 032: ID 05e3:f12a Genesys Logic, Inc. USB2.0 Digital Camera
$ v4l-info /dev/video2
### v4l2 device info [/dev/video2] ###
general info
VIDIOC_QUERYCAP
driver : "uvcvideo"
card : "USB2.0 Digital Camera: USB2.0 D"
bus_info : "usb-0000:00:14.0-1"
version : 5.4.44
capabilities : 0x84a00001 [VIDEO_CAPTURE,?,?,STREAMING,(null)]
standards
inputs
VIDIOC_ENUMINPUT(0)
index : 0
name : "Camera 1"
type : CAMERA
audioset : 0
tuner : 0
std : 0x0 []
status : 0x0 []
video capture
VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE)
index : 0
type : VIDEO_CAPTURE
flags : 0
description : "YUYV 4:2:2"
pixelformat : 0x56595559 [YUYV]
VIDIOC_G_FMT(VIDEO_CAPTURE)
type : VIDEO_CAPTURE
fmt.pix.width : 640
fmt.pix.height : 480
fmt.pix.pixelformat : 0x56595559 [YUYV]
fmt.pix.field : NONE
fmt.pix.bytesperline : 1280
fmt.pix.sizeimage : 614400
fmt.pix.colorspace : SRGB
fmt.pix.priv : 4276996862
controls
VIDIOC_QUERYCTRL(BASE+0)
id : 9963776
type : INTEGER
name : "Brightness"
minimum : 0
maximum : 127
step : 1
default_value : 0
flags : unknown
VIDIOC_QUERYCTRL(BASE+1)
id : 9963777
type : INTEGER
name : "Contrast"
minimum : 0
maximum : 80
step : 1
default_value : 54
flags : unknown
VIDIOC_QUERYCTRL(BASE+2)
id : 9963778
type : INTEGER
name : "Saturation"
minimum : 0
maximum : 176
step : 1
default_value : 130
flags : unknown
VIDIOC_QUERYCTRL(BASE+3)
id : 9963779
type : INTEGER
name : "Hue"
minimum : 0
maximum : 8
step : 1
default_value : 0
flags : unknown
VIDIOC_QUERYCTRL(BASE+12)
id : 9963788
type : BOOLEAN
name : "White Balance Temperature, Auto"
minimum : 0
maximum : 1
step : 1
default_value : 1
flags : unknown
VIDIOC_QUERYCTRL(BASE+16)
id : 9963792
type : INTEGER
name : "Gamma"
minimum : 1
maximum : 5
step : 1
default_value : 3
flags : unknown
VIDIOC_QUERYCTRL(BASE+19)
id : 9963795
type : INTEGER
name : "Gain"
minimum : 0
maximum : 64
step : 1
default_value : 32
flags : unknown
VIDIOC_QUERYCTRL(BASE+24)
id : 9963800
type : MENU
name : "Power Line Frequency"
minimum : 0
maximum : 2
step : 1
default_value : 1
flags : unknown
VIDIOC_QUERYCTRL(BASE+26)
id : 9963802
type : INTEGER
name : "White Balance Temperature"
minimum : 2800
maximum : 6500
step : 1
default_value : 5900
flags : INACTIVE
VIDIOC_QUERYCTRL(BASE+27)
id : 9963803
type : INTEGER
name : "Sharpness"
minimum : 0
maximum : 5
step : 1
default_value : 1
flags : unknown
VIDIOC_QUERYCTRL(BASE+28)
id : 9963804
type : INTEGER
name : "Backlight Compensation"
minimum : 0
maximum : 2
step : 1
default_value : 1
flags : unknown