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OpenCV
3.4.20
Open Source Computer Vision
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enum cv::VideoCaptureAPIs |
#include <opencv2/videoio.hpp>
VideoCapture API backends identifier.
Select preferred API for a capture object. To be used in the VideoCapture::VideoCapture() constructor or VideoCapture::open()
#include <opencv2/videoio.hpp>
Generic camera output modes identifier.
Enumerator | |
---|---|
CAP_MODE_BGR Python: cv.CAP_MODE_BGR | BGR24 (default) |
CAP_MODE_RGB Python: cv.CAP_MODE_RGB | RGB24. |
CAP_MODE_GRAY Python: cv.CAP_MODE_GRAY | Y8. |
CAP_MODE_YUYV Python: cv.CAP_MODE_YUYV | YUYV. |
#include <opencv2/videoio.hpp>
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.
Enumerator | |
---|---|
CAP_PROP_POS_MSEC Python: cv.CAP_PROP_POS_MSEC | Current position of the video file in milliseconds. |
CAP_PROP_POS_FRAMES Python: cv.CAP_PROP_POS_FRAMES | 0-based index of the frame to be decoded/captured next. |
CAP_PROP_POS_AVI_RATIO Python: cv.CAP_PROP_POS_AVI_RATIO | Relative position of the video file: 0=start of the film, 1=end of the film. |
CAP_PROP_FRAME_WIDTH Python: cv.CAP_PROP_FRAME_WIDTH | Width of the frames in the video stream. |
CAP_PROP_FRAME_HEIGHT Python: cv.CAP_PROP_FRAME_HEIGHT | Height of the frames in the video stream. |
CAP_PROP_FPS Python: cv.CAP_PROP_FPS | Frame rate. |
CAP_PROP_FOURCC Python: cv.CAP_PROP_FOURCC | 4-character code of codec. see VideoWriter::fourcc . |
CAP_PROP_FRAME_COUNT Python: cv.CAP_PROP_FRAME_COUNT | Number of frames in the video file. |
CAP_PROP_FORMAT Python: cv.CAP_PROP_FORMAT | Format of the Mat objects (see Mat::type()) returned by VideoCapture::retrieve(). Set value -1 to fetch undecoded RAW video streams (as Mat 8UC1). |
CAP_PROP_MODE Python: cv.CAP_PROP_MODE | Backend-specific value indicating the current capture mode. |
CAP_PROP_BRIGHTNESS Python: cv.CAP_PROP_BRIGHTNESS | Brightness of the image (only for those cameras that support). |
CAP_PROP_CONTRAST Python: cv.CAP_PROP_CONTRAST | Contrast of the image (only for cameras). |
CAP_PROP_SATURATION Python: cv.CAP_PROP_SATURATION | Saturation of the image (only for cameras). |
CAP_PROP_HUE Python: cv.CAP_PROP_HUE | Hue of the image (only for cameras). |
CAP_PROP_GAIN Python: cv.CAP_PROP_GAIN | Gain of the image (only for those cameras that support). |
CAP_PROP_EXPOSURE Python: cv.CAP_PROP_EXPOSURE | Exposure (only for those cameras that support). |
CAP_PROP_CONVERT_RGB Python: cv.CAP_PROP_CONVERT_RGB | Boolean flags indicating whether images should be converted to RGB. |
CAP_PROP_WHITE_BALANCE_BLUE_U Python: cv.CAP_PROP_WHITE_BALANCE_BLUE_U | Currently unsupported. |
CAP_PROP_RECTIFICATION Python: cv.CAP_PROP_RECTIFICATION | Rectification flag for stereo cameras (note: only supported by DC1394 v 2.x backend currently). |
CAP_PROP_MONOCHROME Python: cv.CAP_PROP_MONOCHROME | |
CAP_PROP_SHARPNESS Python: cv.CAP_PROP_SHARPNESS | |
CAP_PROP_AUTO_EXPOSURE Python: cv.CAP_PROP_AUTO_EXPOSURE | DC1394: exposure control done by camera, user can adjust reference level using this feature. |
CAP_PROP_GAMMA Python: cv.CAP_PROP_GAMMA | |
CAP_PROP_TEMPERATURE Python: cv.CAP_PROP_TEMPERATURE | |
CAP_PROP_TRIGGER Python: cv.CAP_PROP_TRIGGER | |
CAP_PROP_TRIGGER_DELAY Python: cv.CAP_PROP_TRIGGER_DELAY | |
CAP_PROP_WHITE_BALANCE_RED_V Python: cv.CAP_PROP_WHITE_BALANCE_RED_V | |
CAP_PROP_ZOOM Python: cv.CAP_PROP_ZOOM | |
CAP_PROP_FOCUS Python: cv.CAP_PROP_FOCUS | |
CAP_PROP_GUID Python: cv.CAP_PROP_GUID | |
CAP_PROP_ISO_SPEED Python: cv.CAP_PROP_ISO_SPEED | |
CAP_PROP_BACKLIGHT Python: cv.CAP_PROP_BACKLIGHT | |
CAP_PROP_PAN Python: cv.CAP_PROP_PAN | |
CAP_PROP_TILT Python: cv.CAP_PROP_TILT | |
CAP_PROP_ROLL Python: cv.CAP_PROP_ROLL | |
CAP_PROP_IRIS Python: cv.CAP_PROP_IRIS | |
CAP_PROP_SETTINGS Python: cv.CAP_PROP_SETTINGS | Pop up video/camera filter dialog (note: only supported by DSHOW backend currently. The property value is ignored) |
CAP_PROP_BUFFERSIZE Python: cv.CAP_PROP_BUFFERSIZE | |
CAP_PROP_AUTOFOCUS Python: cv.CAP_PROP_AUTOFOCUS | |
CAP_PROP_SAR_NUM Python: cv.CAP_PROP_SAR_NUM | Sample aspect ratio: num/den (num) |
CAP_PROP_SAR_DEN Python: cv.CAP_PROP_SAR_DEN | Sample aspect ratio: num/den (den) |
CAP_PROP_BACKEND Python: cv.CAP_PROP_BACKEND | Current backend (enum VideoCaptureAPIs). Read-only property. |
CAP_PROP_CHANNEL Python: cv.CAP_PROP_CHANNEL | Video input or Channel Number (only for those cameras that support) |
CAP_PROP_AUTO_WB Python: cv.CAP_PROP_AUTO_WB | enable/ disable auto white-balance |
CAP_PROP_WB_TEMPERATURE Python: cv.CAP_PROP_WB_TEMPERATURE | white-balance color temperature |
CAP_PROP_CODEC_PIXEL_FORMAT Python: cv.CAP_PROP_CODEC_PIXEL_FORMAT | (read-only) codec's pixel format. 4-character code - see VideoWriter::fourcc . Subset of AV_PIX_FMT_* or -1 if unknown |
CAP_PROP_BITRATE Python: cv.CAP_PROP_BITRATE | (read-only) Video bitrate in kbits/s |
CAP_PROP_ORIENTATION_META Python: cv.CAP_PROP_ORIENTATION_META | (read-only) Frame rotation defined by stream meta (applicable for FFmpeg back-end only) |
CAP_PROP_ORIENTATION_AUTO Python: cv.CAP_PROP_ORIENTATION_AUTO | if true - rotates output frames of CvCapture considering video file's metadata (applicable for FFmpeg back-end only) (https://github.com/opencv/opencv/issues/15499) |
CAP_PROP_OPEN_TIMEOUT_MSEC Python: cv.CAP_PROP_OPEN_TIMEOUT_MSEC | |
CAP_PROP_READ_TIMEOUT_MSEC Python: cv.CAP_PROP_READ_TIMEOUT_MSEC |
#include <opencv2/videoio.hpp>
VideoWriter generic properties identifier.