python - macOS上的python opencv contrib全屏
问题描述
我无法在 macos 10.15 和 Python 3.8（通过 miniconda）上进行正确的全屏网络摄像头视频捕获
在我的系统分辨率上，1440x900（操作系统显示）和 2560x1600（视网膜显示）
到目前为止，我尝试过：
import cv2
WINDOW_NAME = "Fullscreen"
video_capture = cv2.VideoCapture(0)
while (video_capture.isOpened()):
ret, frame = video_capture.read()
screen_full = cv2.resize(frame, (1440, 900))
#screen_full = cv2.resize(frame, (2560, 1600))
cv2.namedWindow(WINDOW_NAME, cv2.WND_PROP_FULLSCREEN)
cv2.setWindowProperty(WINDOW_NAME, cv2.WND_PROP_FULLSCREEN, cv2.WINDOW_FULLSCREEN)
cv2.imshow(WINDOW_NAME, screen_full)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
结果如下：
1440x900：
2560x1600
两者仍然获得利润。
2560x1600 保持右上角为空。
为调整大小添加更多像素不会补偿角落。
以下是关于我的 opencv 版本的所有信息（cv2.getBuildInformation()）
General configuration for OpenCV 4.5.2 =====================================
Version control: 4.5.2
Extra modules:
Location (extra): /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-req-build-kli_6c9e/opencv_contrib/modules
Version control (extra): 4.5.2
Platform:
Timestamp: 2021-06-07T10:15:54Z
Host: Darwin 19.6.0 x86_64
CMake: 3.20.2
CMake generator: Unix Makefiles
CMake build tool: /usr/bin/make
Configuration: Release
CPU/HW features:
Baseline: SSE SSE2 SSE3 SSSE3 SSE4_1
requested: DETECT
Dispatched code generation: SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_2 (1 files): + POPCNT SSE4_2
FP16 (0 files): + POPCNT SSE4_2 FP16 AVX
AVX (4 files): + POPCNT SSE4_2 AVX
AVX2 (29 files): + POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (4 files): + POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
C/C++:
Built as dynamic libs?: NO
C++ standard: 11
C++ Compiler: /usr/local/opt/ccache/libexec/clang++ (ver 12.0.0.12000032)
C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: /usr/local/opt/ccache/libexec/clang
C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Wno-long-long -Qunused-arguments -Wno-semicolon-before-method-body -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,-dead_strip
Linker flags (Debug): -Wl,-dead_strip
ccache: YES
Precompiled headers: NO
Extra dependencies: -framework OpenCL /Applications/Xcode_12.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Accelerate.framework -lm -ldl -framework Cocoa -framework AppKit
3rdparty dependencies: ittnotify libprotobuf ade libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf zlib quirc ippiw ippicv
OpenCV modules:
To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
Disabled: freetype java world
Disabled by dependency: -
Unavailable: alphamat cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf julia matlab ovis python2 sfm ts viz
Applications: -
Documentation: NO
Non-free algorithms: NO
GUI:
Cocoa: YES
VTK support: NO
Media I/O:
ZLib: build (ver 1.2.11)
JPEG: build-libjpeg-turbo (ver 2.0.6-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.4.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES
avcodec: YES (58.134.100)
avformat: YES (58.76.100)
avutil: YES (56.70.100)
swscale: YES (5.9.100)
avresample: YES (4.0.0)
GStreamer: NO
AVFoundation: YES
Parallel framework: GCD
Trace: YES (with Intel ITT)
Other third-party libraries:
Intel IPP: 2020.0.0 Gold [2020.0.0]
at: /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-req-build-kli_6c9e/_skbuild/macosx-10.15-x86_64-3.8/cmake-build/3rdparty/ippicv/ippicv_mac/icv
Intel IPP IW: sources (2020.0.0)
at: /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-req-build-kli_6c9e/_skbuild/macosx-10.15-x86_64-3.8/cmake-build/3rdparty/ippicv/ippicv_mac/iw
Lapack: YES (/Applications/Xcode_12.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/System/Library/Frameworks/Accelerate.framework -lm -ldl)
Eigen: NO
Custom HAL: NO
Protobuf: build (3.5.1)
OpenCL: YES (no extra features)
Include path: NO
Link libraries: -framework OpenCL
Python 3:
Interpreter: /Users/runner/work/opencv-python/opencv-python/venv/bin/python (ver 3.8.6)
Libraries: /Library/Frameworks/Python.framework/Versions/3.8/lib/libpython3.8.dylib (ver 3.8.6)
numpy: /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-build-env-wzrp7njk/overlay/lib/python3.8/site-packages/numpy/core/include (ver 1.17.3)
install path: python
Python (for build): /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Java:
ant: /usr/local/bin/ant (ver 1.10.10)
JNI: /Users/runner/hostedtoolcache/Java_Adopt_jdk/8.0.292-10/x64/Contents/Home/include /Users/runner/hostedtoolcache/Java_Adopt_jdk/8.0.292-10/x64/Contents/Home/include/darwin /Users/runner/hostedtoolcache/Java_Adopt_jdk/8.0.292-10/x64/Contents/Home/include
Java wrappers: NO
Java tests: NO
Install to: /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-req-build-kli_6c9e/_skbuild/macosx-10.15-x86_64-3.8/cmake-install
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提前致谢
解决方案
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