pythonOpenCV的imread不能读取中文路径问题及解决
目录
OpenCV的imread不能读取中文路径问题
OpenCV imread()函数 (从文件加载图像)
OpenCV的imread不能读取中文路径问题import numpy as np
import cv2
cv_img = cv2.imdecode(np.fromfile(jpg_path, dtype=np.uint8), -1) # 读取8位图像
OpenCV imread()函数 (从文件加载图像)
def imread(filename, flags=None): # real signature unknown; restored from __doc__
"""
imread(filename[, flags]) -> retval
. @brief Loads an image from a file. 从文件加载图像。
.
. @anchor imread
.
. The function imread loads an image from the specified file and returns it. If the image cannot be
. read (because of missing file, improper permissions, unsupported or invalid format), the function
. returns an empty matrix ( Mat::data==NULL ).
该函数imread从指定的文件加载图像并返回它。
如果无法读取图像（由于缺少文件，权限不正确，格式不受支持或格式无效），
该函数将返回一个空矩阵（Mat :: data == NULL）。
.
. Currently, the following file formats are supported: 当前，支持以下文件格式：
.
. - Windows bitmaps - \*.bmp, \*.dib (always supported)
. - JPEG files - \*.jpeg, \*.jpg, \*.jpe (see the *Note* section)
. - JPEG 2000 files - \*.jp2 (see the *Note* section)
. - Portable Network Graphics - \*.png (see the *Note* section)
. - WebP - \*.webp (see the *Note* section)
. - Portable image format - \*.pbm, \*.pgm, \*.ppm \*.pxm, \*.pnm (always supported)
. - PFM files - \*.pfm (see the *Note* section)
. - Sun rasters - \*.sr, \*.ras (always supported)
. - TIFF files - \*.tiff, \*.tif (see the *Note* section)
. - OpenEXR Image files - \*.exr (see the *Note* section)
. - Radiance HDR - \*.hdr, \*.pic (always supported)
. - Raster and Vector geospatial data supported by GDAL (see the *Note* section)
.
. @note
. - The function determines the type of an image by the content, not by the file extension.
该功能通过内容而不是文件扩展名确定图像的类型
. - In the case of color images, the decoded images will have the channels stored in **B G R** order.
对于彩色图像，解码后的图像将具有以** B G R **顺序存储的通道。
. - When using IMREAD_GRAYSCALE, the codec's internal grayscale conversion will be used, if available.
. Results may differ to the output of cvtColor()
使用IMREAD_GRAYSCALE时，将使用编解码器的内部灰度转换（如果有）。 结果可能与cvtColor（）的输出不同
. - On Microsoft Windows\* OS and MacOSX\*, the codecs shipped with an OpenCV image (libjpeg,
. libpng, libtiff, and libjasper) are used by default. So, OpenCV can always read JPEGs, PNGs,
. and TIFFs. On MacOSX, there is also an option to use native MacOSX image readers. But beware
. that currently these native image loaders give images with different pixel values because of
. the color management embedded into MacOSX.
在Microsoft Windows \ * OS和MacOSX \ *上，
默认使用OpenCV映像附带的编解码器（libjpeg，libpng，libtiff和libjasper）。
因此，OpenCV始终可以读取JPEG，PNG和TIFF。
在MacOSX上，还可以选择使用本机MacOSX图像读取器。
但是请注意，由于MacOSX中嵌入了色彩管理，当前这些本机图像加载器会为图像提供不同的像素值。
. - On Linux\*, BSD flavors and other Unix-like open-source operating systems, OpenCV looks for
. codecs supplied with an OS image. Install the relevant packages (do not forget the development
. files, for example, "libjpeg-dev", in Debian\* and Ubuntu\*) to get the codec support or turn
. on the OPENCV_BUILD_3RDPARTY_LIBS flag in CMake.
在Linux \ *，BSD版本和其他类似Unix的开源操作系统上，OpenCV会寻找OS映像随附的编解码器。
安装相关的软件包（不要忘记在Debian \ *和Ubuntu \ *中忘记开发文件，
例如“ libjpeg-dev”）以获得编码解码器支持或在CMake中打开OPENCV_BUILD_3RDPARTY_LIBS标志。
. - In the case you set *WITH_GDAL* flag to true in CMake and @ref IMREAD_LOAD_GDAL to load the image,
. then the [GDAL](http://www.gdal.org) driver will be used in order to decode the image, supporting
. the following formats: [Raster](http://www.gdal.org/formats_list.html),
. [Vector](http://www.gdal.org/ogr_formats.html).
如果您在CMake中将* WITH_GDAL *标志设置为true并使用@ref IMREAD_LOAD_GDAL加载图像，则将使用[GDAL]（http://www.gdal.org）驱动程序对图像进行解码，以支持 以下格式：[Raster]（http://www.gdal.org/formats_list.html)、[Vector]（http://www.gdal.org/ogr_formats.html）。
. - If EXIF information are embedded in the image file, the EXIF orientation will be taken into account
. and thus the image will be rotated accordingly except if the flag @ref IMREAD_IGNORE_ORIENTATION is passed.
如果将EXIF信息嵌入到图像文件中，则将考虑EXIF方向，
因此，除非传递了@ref IMREAD_IGNORE_ORIENTATION标志，否则图像将相应旋转。
. - Use the IMREAD_UNCHANGED flag to keep the floating point values from PFM image.
使用IMREAD_UNCHANGED标志保留PFM图像中的浮点值。
. - By default number of pixels must be less than 2^30. Limit can be set using system
. variable OPENCV_IO_MAX_IMAGE_PIXELS
默认情况下，像素数必须小于2 ^ 30。 可以使用系统变量OPENCV_IO_MAX_IMAGE_PIXELS设置限制
.
. @param filename Name of file to be loaded. 要加载的文件名。
. @param flags Flag that can take values of cv::ImreadModes 可以采用cv :: ImreadModes值的标志
"""
pass
以上为个人经验，希望能给大家一个参考，也希望大家多多支持软件开发网。
