问题
I want to lock the focus on my USB webcam I'm using with OpenCV but how do I find the Property ID numbers for that webcam so I can set them.
I used
vid = cv2.VideoCapture(2)
for i in range(64):
print(f'ID {i} = {vid.get(i)}')
to get all the values but I don't know which bool value is which.
Driver: Realtek Semiconductor Corp. FULL HD 1080P Webcam
Cam: Nextech Autofocus 1080P HD Webcam
ID 0 = 0.0
ID 1 = -1.0
ID 2 = -1.0
ID 3 = 640.0
ID 4 = 480.0
ID 5 = 30.0
ID 6 = 1196444237.0
ID 7 = -1.0
ID 8 = 16.0
ID 9 = 0.0
ID 10 = 0.0
ID 11 = 0.0
ID 12 = 66.0
ID 13 = 0.0
ID 14 = -1.0
ID 15 = 166.0
ID 16 = 1.0
ID 17 = -1.0
ID 18 = -1.0
ID 19 = -1.0
ID 20 = 2.0
ID 21 = 3.0
ID 22 = 165.0
ID 23 = 4600.0
ID 24 = -1.0
ID 25 = -1.0
ID 26 = -1.0
ID 27 = 0.0
ID 28 = 120.0
ID 29 = -1.0
ID 30 = -1.0
ID 31 = -1.0
ID 32 = 0.0
ID 33 = 0.0
ID 34 = 0.0
ID 35 = -1.0
ID 36 = -1.0
ID 37 = -1.0
ID 38 = 4.0
ID 39 = 1.0
ID 40 = -1.0
ID 41 = -1.0
ID 42 = 200.0
ID 43 = -1.0
ID 44 = 1.0
ID 45 = 4600.0
ID 46 = -1.0
ID 47 = -1.0
...
ID 63 = -1.0
I'm using ubuntu
回答1:
In C/C++ documentation Flags for video I/O in section enum cv::VideoCaptureProperties you can find values and names ie.
cv::CAP_PROP_FRAME_WIDTH =3,
For python it will be
cv2.CAP_PROP_FRAME_WIDTH = 3
what you can check with
print(cv2.CAP_PROP_FRAME_WIDTH)
All values from this page
cv2.CAP_PROP_POS_MSEC = 0
cv2.CAP_PROP_POS_FRAMES = 1
cv2.CAP_PROP_POS_AVI_RATIO = 2
cv2.CAP_PROP_FRAME_WIDTH = 3
cv2.CAP_PROP_FRAME_HEIGHT = 4
cv2.CAP_PROP_FPS = 5
cv2.CAP_PROP_FOURCC = 6
cv2.CAP_PROP_FRAME_COUNT = 7
cv2.CAP_PROP_FORMAT = 8
cv2.CAP_PROP_MODE = 9
cv2.CAP_PROP_BRIGHTNESS = 10
cv2.CAP_PROP_CONTRAST = 11
cv2.CAP_PROP_SATURATION = 12
cv2.CAP_PROP_HUE = 13
cv2.CAP_PROP_GAIN = 14
cv2.CAP_PROP_EXPOSURE = 15
cv2.CAP_PROP_CONVERT_RGB = 16
cv2.CAP_PROP_WHITE_BALANCE_BLUE_U = 17
cv2.CAP_PROP_RECTIFICATION = 18
cv2.CAP_PROP_MONOCHROME = 19
cv2.CAP_PROP_SHARPNESS = 20
cv2.CAP_PROP_AUTO_EXPOSURE = 21
cv2.CAP_PROP_GAMMA = 22
cv2.CAP_PROP_TEMPERATURE = 23
cv2.CAP_PROP_TRIGGER = 24
cv2.CAP_PROP_TRIGGER_DELAY = 25
cv2.CAP_PROP_WHITE_BALANCE_RED_V = 26
cv2.CAP_PROP_ZOOM = 27
cv2.CAP_PROP_FOCUS = 28
cv2.CAP_PROP_GUID = 29
cv2.CAP_PROP_ISO_SPEED = 30
cv2.CAP_PROP_BACKLIGHT = 32
cv2.CAP_PROP_PAN = 33
cv2.CAP_PROP_TILT = 34
cv2.CAP_PROP_ROLL = 35
cv2.CAP_PROP_IRIS = 36
cv2.CAP_PROP_SETTINGS = 37
cv2.CAP_PROP_BUFFERSIZE = 38
cv2.CAP_PROP_AUTOFOCUS = 39
cv2.CAP_PROP_SAR_NUM = 40
cv2.CAP_PROP_SAR_DEN = 41
cv2.CAP_PROP_BACKEND = 42
cv2.CAP_PROP_CHANNEL = 43
cv2.CAP_PROP_AUTO_WB = 44
cv2.CAP_PROP_WB_TEMPERATURE = 45
cv2.CAP_PROP_CODEC_PIXEL_FORMAT = 46
cv2.CAP_PROP_BITRATE = 47
cv2.CAP_PROP_ORIENTATION_META = 48
cv2.CAP_PROP_ORIENTATION_AUTO = 49
On the same page but little lower you can see VideoCaptureProperties with information
VideoCapture generic properties identifier.
Reading / writing properties involves many layers.
Some unexpected result might happens along this chain.
Effective behaviour depends from device hardware, driver and API Backend.
Which can means that these values are universal for all devices but some of devices or codecs/drivers may not have some values.
There is also link Additional flags for video I/O API backends with properties only for some codes/drivers.
On page Video I/O with OpenCV Overview you can also see
Each backend supports devices properties (cv::VideoCaptureProperties) in a different way
or might not support any property at all.
BTW:
Python's names (but without numbers) are also in doc for old version 2.4: VideoCapture::get
In much older versions Python was using little different names - ie.
cv2.cv.CV_CAP_PROP_FRAME_WIDTH
cv2.cv.CV_CAP_PROP_FRAME_HEIGHT
EDIT:
I made program to list all properties sorted by values.
If you skip sorted() then you get sorted by names.
import cv2
properties = []
for name in dir(cv2):
if name.startswith('CAP_PROP'):
value = getattr(cv2, name)
properties.append((value, name))
# it will sort by values
# originally it is sorted by names
properties = sorted(properties)
for value, name in properties:
print(f' {value:5} | cv2.{name}')
Sorted by values:
-4 | cv2.CAP_PROP_DC1394_OFF
-3 | cv2.CAP_PROP_DC1394_MODE_MANUAL
-2 | cv2.CAP_PROP_DC1394_MODE_AUTO
-1 | cv2.CAP_PROP_DC1394_MODE_ONE_PUSH_AUTO
0 | cv2.CAP_PROP_POS_MSEC
1 | cv2.CAP_PROP_POS_FRAMES
2 | cv2.CAP_PROP_POS_AVI_RATIO
3 | cv2.CAP_PROP_FRAME_WIDTH
4 | cv2.CAP_PROP_FRAME_HEIGHT
5 | cv2.CAP_PROP_FPS
6 | cv2.CAP_PROP_FOURCC
7 | cv2.CAP_PROP_FRAME_COUNT
8 | cv2.CAP_PROP_FORMAT
9 | cv2.CAP_PROP_MODE
10 | cv2.CAP_PROP_BRIGHTNESS
11 | cv2.CAP_PROP_CONTRAST
12 | cv2.CAP_PROP_SATURATION
13 | cv2.CAP_PROP_HUE
14 | cv2.CAP_PROP_GAIN
15 | cv2.CAP_PROP_EXPOSURE
16 | cv2.CAP_PROP_CONVERT_RGB
17 | cv2.CAP_PROP_WHITE_BALANCE_BLUE_U
18 | cv2.CAP_PROP_RECTIFICATION
19 | cv2.CAP_PROP_MONOCHROME
20 | cv2.CAP_PROP_SHARPNESS
21 | cv2.CAP_PROP_AUTO_EXPOSURE
22 | cv2.CAP_PROP_GAMMA
23 | cv2.CAP_PROP_TEMPERATURE
24 | cv2.CAP_PROP_TRIGGER
25 | cv2.CAP_PROP_TRIGGER_DELAY
26 | cv2.CAP_PROP_WHITE_BALANCE_RED_V
27 | cv2.CAP_PROP_ZOOM
28 | cv2.CAP_PROP_FOCUS
29 | cv2.CAP_PROP_GUID
30 | cv2.CAP_PROP_ISO_SPEED
31 | cv2.CAP_PROP_DC1394_MAX
32 | cv2.CAP_PROP_BACKLIGHT
33 | cv2.CAP_PROP_PAN
34 | cv2.CAP_PROP_TILT
35 | cv2.CAP_PROP_ROLL
36 | cv2.CAP_PROP_IRIS
37 | cv2.CAP_PROP_SETTINGS
38 | cv2.CAP_PROP_BUFFERSIZE
39 | cv2.CAP_PROP_AUTOFOCUS
40 | cv2.CAP_PROP_SAR_NUM
41 | cv2.CAP_PROP_SAR_DEN
42 | cv2.CAP_PROP_BACKEND
43 | cv2.CAP_PROP_CHANNEL
44 | cv2.CAP_PROP_AUTO_WB
45 | cv2.CAP_PROP_WB_TEMPERATURE
46 | cv2.CAP_PROP_CODEC_PIXEL_FORMAT
47 | cv2.CAP_PROP_BITRATE
100 | cv2.CAP_PROP_OPENNI_OUTPUT_MODE
101 | cv2.CAP_PROP_OPENNI_FRAME_MAX_DEPTH
102 | cv2.CAP_PROP_OPENNI_BASELINE
103 | cv2.CAP_PROP_OPENNI_FOCAL_LENGTH
104 | cv2.CAP_PROP_OPENNI_REGISTRATION
104 | cv2.CAP_PROP_OPENNI_REGISTRATION_ON
105 | cv2.CAP_PROP_OPENNI_APPROX_FRAME_SYNC
106 | cv2.CAP_PROP_OPENNI_MAX_BUFFER_SIZE
107 | cv2.CAP_PROP_OPENNI_CIRCLE_BUFFER
108 | cv2.CAP_PROP_OPENNI_MAX_TIME_DURATION
109 | cv2.CAP_PROP_OPENNI_GENERATOR_PRESENT
110 | cv2.CAP_PROP_OPENNI2_SYNC
111 | cv2.CAP_PROP_OPENNI2_MIRROR
200 | cv2.CAP_PROP_GSTREAMER_QUEUE_LENGTH
300 | cv2.CAP_PROP_PVAPI_MULTICASTIP
301 | cv2.CAP_PROP_PVAPI_FRAMESTARTTRIGGERMODE
302 | cv2.CAP_PROP_PVAPI_DECIMATIONHORIZONTAL
303 | cv2.CAP_PROP_PVAPI_DECIMATIONVERTICAL
304 | cv2.CAP_PROP_PVAPI_BINNINGX
305 | cv2.CAP_PROP_PVAPI_BINNINGY
306 | cv2.CAP_PROP_PVAPI_PIXELFORMAT
400 | cv2.CAP_PROP_XI_DOWNSAMPLING
401 | cv2.CAP_PROP_XI_DATA_FORMAT
402 | cv2.CAP_PROP_XI_OFFSET_X
403 | cv2.CAP_PROP_XI_OFFSET_Y
404 | cv2.CAP_PROP_XI_TRG_SOURCE
405 | cv2.CAP_PROP_XI_TRG_SOFTWARE
406 | cv2.CAP_PROP_XI_GPI_SELECTOR
407 | cv2.CAP_PROP_XI_GPI_MODE
408 | cv2.CAP_PROP_XI_GPI_LEVEL
409 | cv2.CAP_PROP_XI_GPO_SELECTOR
410 | cv2.CAP_PROP_XI_GPO_MODE
411 | cv2.CAP_PROP_XI_LED_SELECTOR
412 | cv2.CAP_PROP_XI_LED_MODE
413 | cv2.CAP_PROP_XI_MANUAL_WB
414 | cv2.CAP_PROP_XI_AUTO_WB
415 | cv2.CAP_PROP_XI_AEAG
416 | cv2.CAP_PROP_XI_EXP_PRIORITY
417 | cv2.CAP_PROP_XI_AE_MAX_LIMIT
418 | cv2.CAP_PROP_XI_AG_MAX_LIMIT
419 | cv2.CAP_PROP_XI_AEAG_LEVEL
420 | cv2.CAP_PROP_XI_TIMEOUT
421 | cv2.CAP_PROP_XI_EXPOSURE
422 | cv2.CAP_PROP_XI_EXPOSURE_BURST_COUNT
423 | cv2.CAP_PROP_XI_GAIN_SELECTOR
424 | cv2.CAP_PROP_XI_GAIN
426 | cv2.CAP_PROP_XI_DOWNSAMPLING_TYPE
427 | cv2.CAP_PROP_XI_BINNING_SELECTOR
428 | cv2.CAP_PROP_XI_BINNING_VERTICAL
429 | cv2.CAP_PROP_XI_BINNING_HORIZONTAL
430 | cv2.CAP_PROP_XI_BINNING_PATTERN
431 | cv2.CAP_PROP_XI_DECIMATION_SELECTOR
432 | cv2.CAP_PROP_XI_DECIMATION_VERTICAL
433 | cv2.CAP_PROP_XI_DECIMATION_HORIZONTAL
434 | cv2.CAP_PROP_XI_DECIMATION_PATTERN
435 | cv2.CAP_PROP_XI_IMAGE_DATA_FORMAT
436 | cv2.CAP_PROP_XI_SHUTTER_TYPE
437 | cv2.CAP_PROP_XI_SENSOR_TAPS
439 | cv2.CAP_PROP_XI_AEAG_ROI_OFFSET_X
440 | cv2.CAP_PROP_XI_AEAG_ROI_OFFSET_Y
441 | cv2.CAP_PROP_XI_AEAG_ROI_WIDTH
442 | cv2.CAP_PROP_XI_AEAG_ROI_HEIGHT
445 | cv2.CAP_PROP_XI_BPC
448 | cv2.CAP_PROP_XI_WB_KR
449 | cv2.CAP_PROP_XI_WB_KG
450 | cv2.CAP_PROP_XI_WB_KB
451 | cv2.CAP_PROP_XI_WIDTH
452 | cv2.CAP_PROP_XI_HEIGHT
459 | cv2.CAP_PROP_XI_LIMIT_BANDWIDTH
460 | cv2.CAP_PROP_XI_SENSOR_DATA_BIT_DEPTH
461 | cv2.CAP_PROP_XI_OUTPUT_DATA_BIT_DEPTH
462 | cv2.CAP_PROP_XI_IMAGE_DATA_BIT_DEPTH
463 | cv2.CAP_PROP_XI_OUTPUT_DATA_PACKING
464 | cv2.CAP_PROP_XI_OUTPUT_DATA_PACKING_TYPE
465 | cv2.CAP_PROP_XI_IS_COOLED
466 | cv2.CAP_PROP_XI_COOLING
467 | cv2.CAP_PROP_XI_TARGET_TEMP
468 | cv2.CAP_PROP_XI_CHIP_TEMP
469 | cv2.CAP_PROP_XI_HOUS_TEMP
470 | cv2.CAP_PROP_XI_CMS
471 | cv2.CAP_PROP_XI_APPLY_CMS
474 | cv2.CAP_PROP_XI_IMAGE_IS_COLOR
475 | cv2.CAP_PROP_XI_COLOR_FILTER_ARRAY
476 | cv2.CAP_PROP_XI_GAMMAY
477 | cv2.CAP_PROP_XI_GAMMAC
478 | cv2.CAP_PROP_XI_SHARPNESS
479 | cv2.CAP_PROP_XI_CC_MATRIX_00
480 | cv2.CAP_PROP_XI_CC_MATRIX_01
481 | cv2.CAP_PROP_XI_CC_MATRIX_02
482 | cv2.CAP_PROP_XI_CC_MATRIX_03
483 | cv2.CAP_PROP_XI_CC_MATRIX_10
484 | cv2.CAP_PROP_XI_CC_MATRIX_11
485 | cv2.CAP_PROP_XI_CC_MATRIX_12
486 | cv2.CAP_PROP_XI_CC_MATRIX_13
487 | cv2.CAP_PROP_XI_CC_MATRIX_20
488 | cv2.CAP_PROP_XI_CC_MATRIX_21
489 | cv2.CAP_PROP_XI_CC_MATRIX_22
490 | cv2.CAP_PROP_XI_CC_MATRIX_23
491 | cv2.CAP_PROP_XI_CC_MATRIX_30
492 | cv2.CAP_PROP_XI_CC_MATRIX_31
493 | cv2.CAP_PROP_XI_CC_MATRIX_32
494 | cv2.CAP_PROP_XI_CC_MATRIX_33
495 | cv2.CAP_PROP_XI_DEFAULT_CC_MATRIX
498 | cv2.CAP_PROP_XI_TRG_SELECTOR
499 | cv2.CAP_PROP_XI_ACQ_FRAME_BURST_COUNT
507 | cv2.CAP_PROP_XI_DEBOUNCE_EN
508 | cv2.CAP_PROP_XI_DEBOUNCE_T0
509 | cv2.CAP_PROP_XI_DEBOUNCE_T1
510 | cv2.CAP_PROP_XI_DEBOUNCE_POL
511 | cv2.CAP_PROP_XI_LENS_MODE
512 | cv2.CAP_PROP_XI_LENS_APERTURE_VALUE
513 | cv2.CAP_PROP_XI_LENS_FOCUS_MOVEMENT_VALUE
514 | cv2.CAP_PROP_XI_LENS_FOCUS_MOVE
515 | cv2.CAP_PROP_XI_LENS_FOCUS_DISTANCE
516 | cv2.CAP_PROP_XI_LENS_FOCAL_LENGTH
517 | cv2.CAP_PROP_XI_LENS_FEATURE_SELECTOR
518 | cv2.CAP_PROP_XI_LENS_FEATURE
521 | cv2.CAP_PROP_XI_DEVICE_MODEL_ID
522 | cv2.CAP_PROP_XI_DEVICE_SN
529 | cv2.CAP_PROP_XI_IMAGE_DATA_FORMAT_RGB32_ALPHA
530 | cv2.CAP_PROP_XI_IMAGE_PAYLOAD_SIZE
531 | cv2.CAP_PROP_XI_TRANSPORT_PIXEL_FORMAT
532 | cv2.CAP_PROP_XI_SENSOR_CLOCK_FREQ_HZ
533 | cv2.CAP_PROP_XI_SENSOR_CLOCK_FREQ_INDEX
534 | cv2.CAP_PROP_XI_SENSOR_OUTPUT_CHANNEL_COUNT
535 | cv2.CAP_PROP_XI_FRAMERATE
536 | cv2.CAP_PROP_XI_COUNTER_SELECTOR
537 | cv2.CAP_PROP_XI_COUNTER_VALUE
538 | cv2.CAP_PROP_XI_ACQ_TIMING_MODE
539 | cv2.CAP_PROP_XI_AVAILABLE_BANDWIDTH
540 | cv2.CAP_PROP_XI_BUFFER_POLICY
541 | cv2.CAP_PROP_XI_LUT_EN
542 | cv2.CAP_PROP_XI_LUT_INDEX
543 | cv2.CAP_PROP_XI_LUT_VALUE
544 | cv2.CAP_PROP_XI_TRG_DELAY
545 | cv2.CAP_PROP_XI_TS_RST_MODE
546 | cv2.CAP_PROP_XI_TS_RST_SOURCE
547 | cv2.CAP_PROP_XI_IS_DEVICE_EXIST
548 | cv2.CAP_PROP_XI_ACQ_BUFFER_SIZE
549 | cv2.CAP_PROP_XI_ACQ_BUFFER_SIZE_UNIT
550 | cv2.CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_SIZE
551 | cv2.CAP_PROP_XI_BUFFERS_QUEUE_SIZE
552 | cv2.CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_COMMIT
553 | cv2.CAP_PROP_XI_RECENT_FRAME
554 | cv2.CAP_PROP_XI_DEVICE_RESET
555 | cv2.CAP_PROP_XI_COLUMN_FPN_CORRECTION
558 | cv2.CAP_PROP_XI_SENSOR_MODE
559 | cv2.CAP_PROP_XI_HDR
560 | cv2.CAP_PROP_XI_HDR_KNEEPOINT_COUNT
561 | cv2.CAP_PROP_XI_HDR_T1
562 | cv2.CAP_PROP_XI_HDR_T2
563 | cv2.CAP_PROP_XI_KNEEPOINT1
564 | cv2.CAP_PROP_XI_KNEEPOINT2
565 | cv2.CAP_PROP_XI_IMAGE_BLACK_LEVEL
571 | cv2.CAP_PROP_XI_HW_REVISION
572 | cv2.CAP_PROP_XI_DEBUG_LEVEL
573 | cv2.CAP_PROP_XI_AUTO_BANDWIDTH_CALCULATION
580 | cv2.CAP_PROP_XI_FFS_FILE_SIZE
581 | cv2.CAP_PROP_XI_FREE_FFS_SIZE
582 | cv2.CAP_PROP_XI_USED_FFS_SIZE
583 | cv2.CAP_PROP_XI_FFS_ACCESS_KEY
585 | cv2.CAP_PROP_XI_SENSOR_FEATURE_SELECTOR
586 | cv2.CAP_PROP_XI_SENSOR_FEATURE_VALUE
587 | cv2.CAP_PROP_XI_TEST_PATTERN_GENERATOR_SELECTOR
588 | cv2.CAP_PROP_XI_TEST_PATTERN
589 | cv2.CAP_PROP_XI_REGION_SELECTOR
590 | cv2.CAP_PROP_XI_HOUS_BACK_SIDE_TEMP
591 | cv2.CAP_PROP_XI_ROW_FPN_CORRECTION
594 | cv2.CAP_PROP_XI_FFS_FILE_ID
595 | cv2.CAP_PROP_XI_REGION_MODE
596 | cv2.CAP_PROP_XI_SENSOR_BOARD_TEMP
600 | cv2.CAP_PROP_ARAVIS_AUTOTRIGGER
9001 | cv2.CAP_PROP_IOS_DEVICE_FOCUS
9002 | cv2.CAP_PROP_IOS_DEVICE_EXPOSURE
9003 | cv2.CAP_PROP_IOS_DEVICE_FLASH
9004 | cv2.CAP_PROP_IOS_DEVICE_WHITEBALANCE
9005 | cv2.CAP_PROP_IOS_DEVICE_TORCH
10001 | cv2.CAP_PROP_GIGA_FRAME_OFFSET_X
10002 | cv2.CAP_PROP_GIGA_FRAME_OFFSET_Y
10003 | cv2.CAP_PROP_GIGA_FRAME_WIDTH_MAX
10004 | cv2.CAP_PROP_GIGA_FRAME_HEIGH_MAX
10005 | cv2.CAP_PROP_GIGA_FRAME_SENS_WIDTH
10006 | cv2.CAP_PROP_GIGA_FRAME_SENS_HEIGH
11001 | cv2.CAP_PROP_INTELPERC_PROFILE_COUNT
11002 | cv2.CAP_PROP_INTELPERC_PROFILE_IDX
11003 | cv2.CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE
11004 | cv2.CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE
11005 | cv2.CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD
11006 | cv2.CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ
11007 | cv2.CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT
17001 | cv2.CAP_PROP_GPHOTO2_PREVIEW
17002 | cv2.CAP_PROP_GPHOTO2_WIDGET_ENUMERATE
17003 | cv2.CAP_PROP_GPHOTO2_RELOAD_CONFIG
17004 | cv2.CAP_PROP_GPHOTO2_RELOAD_ON_CHANGE
17005 | cv2.CAP_PROP_GPHOTO2_COLLECT_MSGS
17006 | cv2.CAP_PROP_GPHOTO2_FLUSH_MSGS
17007 | cv2.CAP_PROP_SPEED
17008 | cv2.CAP_PROP_APERTURE
17009 | cv2.CAP_PROP_EXPOSUREPROGRAM
17010 | cv2.CAP_PROP_VIEWFINDER
18000 | cv2.CAP_PROP_IMAGES_BASE
19000 | cv2.CAP_PROP_IMAGES_LAST
Sorted by names:
17008 | cv2.CAP_PROP_APERTURE
600 | cv2.CAP_PROP_ARAVIS_AUTOTRIGGER
39 | cv2.CAP_PROP_AUTOFOCUS
21 | cv2.CAP_PROP_AUTO_EXPOSURE
44 | cv2.CAP_PROP_AUTO_WB
42 | cv2.CAP_PROP_BACKEND
32 | cv2.CAP_PROP_BACKLIGHT
47 | cv2.CAP_PROP_BITRATE
10 | cv2.CAP_PROP_BRIGHTNESS
38 | cv2.CAP_PROP_BUFFERSIZE
43 | cv2.CAP_PROP_CHANNEL
46 | cv2.CAP_PROP_CODEC_PIXEL_FORMAT
11 | cv2.CAP_PROP_CONTRAST
16 | cv2.CAP_PROP_CONVERT_RGB
31 | cv2.CAP_PROP_DC1394_MAX
-2 | cv2.CAP_PROP_DC1394_MODE_AUTO
-3 | cv2.CAP_PROP_DC1394_MODE_MANUAL
-1 | cv2.CAP_PROP_DC1394_MODE_ONE_PUSH_AUTO
-4 | cv2.CAP_PROP_DC1394_OFF
15 | cv2.CAP_PROP_EXPOSURE
17009 | cv2.CAP_PROP_EXPOSUREPROGRAM
28 | cv2.CAP_PROP_FOCUS
8 | cv2.CAP_PROP_FORMAT
6 | cv2.CAP_PROP_FOURCC
5 | cv2.CAP_PROP_FPS
7 | cv2.CAP_PROP_FRAME_COUNT
4 | cv2.CAP_PROP_FRAME_HEIGHT
3 | cv2.CAP_PROP_FRAME_WIDTH
14 | cv2.CAP_PROP_GAIN
22 | cv2.CAP_PROP_GAMMA
10004 | cv2.CAP_PROP_GIGA_FRAME_HEIGH_MAX
10001 | cv2.CAP_PROP_GIGA_FRAME_OFFSET_X
10002 | cv2.CAP_PROP_GIGA_FRAME_OFFSET_Y
10006 | cv2.CAP_PROP_GIGA_FRAME_SENS_HEIGH
10005 | cv2.CAP_PROP_GIGA_FRAME_SENS_WIDTH
10003 | cv2.CAP_PROP_GIGA_FRAME_WIDTH_MAX
17005 | cv2.CAP_PROP_GPHOTO2_COLLECT_MSGS
17006 | cv2.CAP_PROP_GPHOTO2_FLUSH_MSGS
17001 | cv2.CAP_PROP_GPHOTO2_PREVIEW
17003 | cv2.CAP_PROP_GPHOTO2_RELOAD_CONFIG
17004 | cv2.CAP_PROP_GPHOTO2_RELOAD_ON_CHANGE
17002 | cv2.CAP_PROP_GPHOTO2_WIDGET_ENUMERATE
200 | cv2.CAP_PROP_GSTREAMER_QUEUE_LENGTH
29 | cv2.CAP_PROP_GUID
13 | cv2.CAP_PROP_HUE
18000 | cv2.CAP_PROP_IMAGES_BASE
19000 | cv2.CAP_PROP_IMAGES_LAST
11005 | cv2.CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD
11006 | cv2.CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ
11007 | cv2.CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT
11003 | cv2.CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE
11004 | cv2.CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE
11001 | cv2.CAP_PROP_INTELPERC_PROFILE_COUNT
11002 | cv2.CAP_PROP_INTELPERC_PROFILE_IDX
9002 | cv2.CAP_PROP_IOS_DEVICE_EXPOSURE
9003 | cv2.CAP_PROP_IOS_DEVICE_FLASH
9001 | cv2.CAP_PROP_IOS_DEVICE_FOCUS
9005 | cv2.CAP_PROP_IOS_DEVICE_TORCH
9004 | cv2.CAP_PROP_IOS_DEVICE_WHITEBALANCE
36 | cv2.CAP_PROP_IRIS
30 | cv2.CAP_PROP_ISO_SPEED
9 | cv2.CAP_PROP_MODE
19 | cv2.CAP_PROP_MONOCHROME
111 | cv2.CAP_PROP_OPENNI2_MIRROR
110 | cv2.CAP_PROP_OPENNI2_SYNC
105 | cv2.CAP_PROP_OPENNI_APPROX_FRAME_SYNC
102 | cv2.CAP_PROP_OPENNI_BASELINE
107 | cv2.CAP_PROP_OPENNI_CIRCLE_BUFFER
103 | cv2.CAP_PROP_OPENNI_FOCAL_LENGTH
101 | cv2.CAP_PROP_OPENNI_FRAME_MAX_DEPTH
109 | cv2.CAP_PROP_OPENNI_GENERATOR_PRESENT
106 | cv2.CAP_PROP_OPENNI_MAX_BUFFER_SIZE
108 | cv2.CAP_PROP_OPENNI_MAX_TIME_DURATION
100 | cv2.CAP_PROP_OPENNI_OUTPUT_MODE
104 | cv2.CAP_PROP_OPENNI_REGISTRATION
104 | cv2.CAP_PROP_OPENNI_REGISTRATION_ON
33 | cv2.CAP_PROP_PAN
2 | cv2.CAP_PROP_POS_AVI_RATIO
1 | cv2.CAP_PROP_POS_FRAMES
0 | cv2.CAP_PROP_POS_MSEC
304 | cv2.CAP_PROP_PVAPI_BINNINGX
305 | cv2.CAP_PROP_PVAPI_BINNINGY
302 | cv2.CAP_PROP_PVAPI_DECIMATIONHORIZONTAL
303 | cv2.CAP_PROP_PVAPI_DECIMATIONVERTICAL
301 | cv2.CAP_PROP_PVAPI_FRAMESTARTTRIGGERMODE
300 | cv2.CAP_PROP_PVAPI_MULTICASTIP
306 | cv2.CAP_PROP_PVAPI_PIXELFORMAT
18 | cv2.CAP_PROP_RECTIFICATION
35 | cv2.CAP_PROP_ROLL
41 | cv2.CAP_PROP_SAR_DEN
40 | cv2.CAP_PROP_SAR_NUM
12 | cv2.CAP_PROP_SATURATION
37 | cv2.CAP_PROP_SETTINGS
20 | cv2.CAP_PROP_SHARPNESS
17007 | cv2.CAP_PROP_SPEED
23 | cv2.CAP_PROP_TEMPERATURE
34 | cv2.CAP_PROP_TILT
24 | cv2.CAP_PROP_TRIGGER
25 | cv2.CAP_PROP_TRIGGER_DELAY
17010 | cv2.CAP_PROP_VIEWFINDER
45 | cv2.CAP_PROP_WB_TEMPERATURE
17 | cv2.CAP_PROP_WHITE_BALANCE_BLUE_U
26 | cv2.CAP_PROP_WHITE_BALANCE_RED_V
548 | cv2.CAP_PROP_XI_ACQ_BUFFER_SIZE
549 | cv2.CAP_PROP_XI_ACQ_BUFFER_SIZE_UNIT
499 | cv2.CAP_PROP_XI_ACQ_FRAME_BURST_COUNT
538 | cv2.CAP_PROP_XI_ACQ_TIMING_MODE
552 | cv2.CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_COMMIT
550 | cv2.CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_SIZE
415 | cv2.CAP_PROP_XI_AEAG
419 | cv2.CAP_PROP_XI_AEAG_LEVEL
442 | cv2.CAP_PROP_XI_AEAG_ROI_HEIGHT
439 | cv2.CAP_PROP_XI_AEAG_ROI_OFFSET_X
440 | cv2.CAP_PROP_XI_AEAG_ROI_OFFSET_Y
441 | cv2.CAP_PROP_XI_AEAG_ROI_WIDTH
417 | cv2.CAP_PROP_XI_AE_MAX_LIMIT
418 | cv2.CAP_PROP_XI_AG_MAX_LIMIT
471 | cv2.CAP_PROP_XI_APPLY_CMS
573 | cv2.CAP_PROP_XI_AUTO_BANDWIDTH_CALCULATION
414 | cv2.CAP_PROP_XI_AUTO_WB
539 | cv2.CAP_PROP_XI_AVAILABLE_BANDWIDTH
429 | cv2.CAP_PROP_XI_BINNING_HORIZONTAL
430 | cv2.CAP_PROP_XI_BINNING_PATTERN
427 | cv2.CAP_PROP_XI_BINNING_SELECTOR
428 | cv2.CAP_PROP_XI_BINNING_VERTICAL
445 | cv2.CAP_PROP_XI_BPC
551 | cv2.CAP_PROP_XI_BUFFERS_QUEUE_SIZE
540 | cv2.CAP_PROP_XI_BUFFER_POLICY
479 | cv2.CAP_PROP_XI_CC_MATRIX_00
480 | cv2.CAP_PROP_XI_CC_MATRIX_01
481 | cv2.CAP_PROP_XI_CC_MATRIX_02
482 | cv2.CAP_PROP_XI_CC_MATRIX_03
483 | cv2.CAP_PROP_XI_CC_MATRIX_10
484 | cv2.CAP_PROP_XI_CC_MATRIX_11
485 | cv2.CAP_PROP_XI_CC_MATRIX_12
486 | cv2.CAP_PROP_XI_CC_MATRIX_13
487 | cv2.CAP_PROP_XI_CC_MATRIX_20
488 | cv2.CAP_PROP_XI_CC_MATRIX_21
489 | cv2.CAP_PROP_XI_CC_MATRIX_22
490 | cv2.CAP_PROP_XI_CC_MATRIX_23
491 | cv2.CAP_PROP_XI_CC_MATRIX_30
492 | cv2.CAP_PROP_XI_CC_MATRIX_31
493 | cv2.CAP_PROP_XI_CC_MATRIX_32
494 | cv2.CAP_PROP_XI_CC_MATRIX_33
468 | cv2.CAP_PROP_XI_CHIP_TEMP
470 | cv2.CAP_PROP_XI_CMS
475 | cv2.CAP_PROP_XI_COLOR_FILTER_ARRAY
555 | cv2.CAP_PROP_XI_COLUMN_FPN_CORRECTION
466 | cv2.CAP_PROP_XI_COOLING
536 | cv2.CAP_PROP_XI_COUNTER_SELECTOR
537 | cv2.CAP_PROP_XI_COUNTER_VALUE
401 | cv2.CAP_PROP_XI_DATA_FORMAT
507 | cv2.CAP_PROP_XI_DEBOUNCE_EN
510 | cv2.CAP_PROP_XI_DEBOUNCE_POL
508 | cv2.CAP_PROP_XI_DEBOUNCE_T0
509 | cv2.CAP_PROP_XI_DEBOUNCE_T1
572 | cv2.CAP_PROP_XI_DEBUG_LEVEL
433 | cv2.CAP_PROP_XI_DECIMATION_HORIZONTAL
434 | cv2.CAP_PROP_XI_DECIMATION_PATTERN
431 | cv2.CAP_PROP_XI_DECIMATION_SELECTOR
432 | cv2.CAP_PROP_XI_DECIMATION_VERTICAL
495 | cv2.CAP_PROP_XI_DEFAULT_CC_MATRIX
521 | cv2.CAP_PROP_XI_DEVICE_MODEL_ID
554 | cv2.CAP_PROP_XI_DEVICE_RESET
522 | cv2.CAP_PROP_XI_DEVICE_SN
400 | cv2.CAP_PROP_XI_DOWNSAMPLING
426 | cv2.CAP_PROP_XI_DOWNSAMPLING_TYPE
421 | cv2.CAP_PROP_XI_EXPOSURE
422 | cv2.CAP_PROP_XI_EXPOSURE_BURST_COUNT
416 | cv2.CAP_PROP_XI_EXP_PRIORITY
583 | cv2.CAP_PROP_XI_FFS_ACCESS_KEY
594 | cv2.CAP_PROP_XI_FFS_FILE_ID
580 | cv2.CAP_PROP_XI_FFS_FILE_SIZE
535 | cv2.CAP_PROP_XI_FRAMERATE
581 | cv2.CAP_PROP_XI_FREE_FFS_SIZE
424 | cv2.CAP_PROP_XI_GAIN
423 | cv2.CAP_PROP_XI_GAIN_SELECTOR
477 | cv2.CAP_PROP_XI_GAMMAC
476 | cv2.CAP_PROP_XI_GAMMAY
408 | cv2.CAP_PROP_XI_GPI_LEVEL
407 | cv2.CAP_PROP_XI_GPI_MODE
406 | cv2.CAP_PROP_XI_GPI_SELECTOR
410 | cv2.CAP_PROP_XI_GPO_MODE
409 | cv2.CAP_PROP_XI_GPO_SELECTOR
559 | cv2.CAP_PROP_XI_HDR
560 | cv2.CAP_PROP_XI_HDR_KNEEPOINT_COUNT
561 | cv2.CAP_PROP_XI_HDR_T1
562 | cv2.CAP_PROP_XI_HDR_T2
452 | cv2.CAP_PROP_XI_HEIGHT
590 | cv2.CAP_PROP_XI_HOUS_BACK_SIDE_TEMP
469 | cv2.CAP_PROP_XI_HOUS_TEMP
571 | cv2.CAP_PROP_XI_HW_REVISION
565 | cv2.CAP_PROP_XI_IMAGE_BLACK_LEVEL
462 | cv2.CAP_PROP_XI_IMAGE_DATA_BIT_DEPTH
435 | cv2.CAP_PROP_XI_IMAGE_DATA_FORMAT
529 | cv2.CAP_PROP_XI_IMAGE_DATA_FORMAT_RGB32_ALPHA
474 | cv2.CAP_PROP_XI_IMAGE_IS_COLOR
530 | cv2.CAP_PROP_XI_IMAGE_PAYLOAD_SIZE
465 | cv2.CAP_PROP_XI_IS_COOLED
547 | cv2.CAP_PROP_XI_IS_DEVICE_EXIST
563 | cv2.CAP_PROP_XI_KNEEPOINT1
564 | cv2.CAP_PROP_XI_KNEEPOINT2
412 | cv2.CAP_PROP_XI_LED_MODE
411 | cv2.CAP_PROP_XI_LED_SELECTOR
512 | cv2.CAP_PROP_XI_LENS_APERTURE_VALUE
518 | cv2.CAP_PROP_XI_LENS_FEATURE
517 | cv2.CAP_PROP_XI_LENS_FEATURE_SELECTOR
516 | cv2.CAP_PROP_XI_LENS_FOCAL_LENGTH
515 | cv2.CAP_PROP_XI_LENS_FOCUS_DISTANCE
514 | cv2.CAP_PROP_XI_LENS_FOCUS_MOVE
513 | cv2.CAP_PROP_XI_LENS_FOCUS_MOVEMENT_VALUE
511 | cv2.CAP_PROP_XI_LENS_MODE
459 | cv2.CAP_PROP_XI_LIMIT_BANDWIDTH
541 | cv2.CAP_PROP_XI_LUT_EN
542 | cv2.CAP_PROP_XI_LUT_INDEX
543 | cv2.CAP_PROP_XI_LUT_VALUE
413 | cv2.CAP_PROP_XI_MANUAL_WB
402 | cv2.CAP_PROP_XI_OFFSET_X
403 | cv2.CAP_PROP_XI_OFFSET_Y
461 | cv2.CAP_PROP_XI_OUTPUT_DATA_BIT_DEPTH
463 | cv2.CAP_PROP_XI_OUTPUT_DATA_PACKING
464 | cv2.CAP_PROP_XI_OUTPUT_DATA_PACKING_TYPE
553 | cv2.CAP_PROP_XI_RECENT_FRAME
595 | cv2.CAP_PROP_XI_REGION_MODE
589 | cv2.CAP_PROP_XI_REGION_SELECTOR
591 | cv2.CAP_PROP_XI_ROW_FPN_CORRECTION
596 | cv2.CAP_PROP_XI_SENSOR_BOARD_TEMP
532 | cv2.CAP_PROP_XI_SENSOR_CLOCK_FREQ_HZ
533 | cv2.CAP_PROP_XI_SENSOR_CLOCK_FREQ_INDEX
460 | cv2.CAP_PROP_XI_SENSOR_DATA_BIT_DEPTH
585 | cv2.CAP_PROP_XI_SENSOR_FEATURE_SELECTOR
586 | cv2.CAP_PROP_XI_SENSOR_FEATURE_VALUE
558 | cv2.CAP_PROP_XI_SENSOR_MODE
534 | cv2.CAP_PROP_XI_SENSOR_OUTPUT_CHANNEL_COUNT
437 | cv2.CAP_PROP_XI_SENSOR_TAPS
478 | cv2.CAP_PROP_XI_SHARPNESS
436 | cv2.CAP_PROP_XI_SHUTTER_TYPE
467 | cv2.CAP_PROP_XI_TARGET_TEMP
588 | cv2.CAP_PROP_XI_TEST_PATTERN
587 | cv2.CAP_PROP_XI_TEST_PATTERN_GENERATOR_SELECTOR
420 | cv2.CAP_PROP_XI_TIMEOUT
531 | cv2.CAP_PROP_XI_TRANSPORT_PIXEL_FORMAT
544 | cv2.CAP_PROP_XI_TRG_DELAY
498 | cv2.CAP_PROP_XI_TRG_SELECTOR
405 | cv2.CAP_PROP_XI_TRG_SOFTWARE
404 | cv2.CAP_PROP_XI_TRG_SOURCE
545 | cv2.CAP_PROP_XI_TS_RST_MODE
546 | cv2.CAP_PROP_XI_TS_RST_SOURCE
582 | cv2.CAP_PROP_XI_USED_FFS_SIZE
450 | cv2.CAP_PROP_XI_WB_KB
449 | cv2.CAP_PROP_XI_WB_KG
448 | cv2.CAP_PROP_XI_WB_KR
451 | cv2.CAP_PROP_XI_WIDTH
27 | cv2.CAP_PROP_ZOOM
来源：https://stackoverflow.com/questions/63256300/how-do-i-get-usb-webcam-property-ids-for-opencv