import numpy as np
import cv2

cv_img = cv2.imdecode(np.fromfile(jpg_path, dtype=np.uint8), -1)  # 讀取8位圖像

def imread(filename, flags=None): # real signature unknown; restored from __doc__
    """
    imread(filename[, flags]) -> retval
    .   @brief Loads an image from a file. 從文件加載圖像。
    .   
    .   @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 ).

		該函數(shù)imread從指定的文件加載圖像并返回它。 
		如果無法讀取圖像（由于缺少文件，權(quán)限不正確，格式不受支持或格式無效），
		該函數(shù)將返回一個空矩陣（Mat :: data == NULL）。
    .   
    .   Currently, the following file formats are supported: 當(dāng)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.
    		該功能通過內(nèi)容而不是文件擴(kuò)展名確定圖像的類型
    		
    .   -   In the case of color images, the decoded images will have the channels stored in **B G R** order.
    		對于彩色圖像，解碼后的圖像將具有以** B G R **順序存儲的通道。
    		
    .   -   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時，將使用編解碼器的內(nèi)部灰度轉(zhuǎn)換（如果有）。 結(jié)果可能與cvtColor（）的輸出不同
    		
    .   -   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，
			默認(rèn)使用OpenCV映像附帶的編解碼器（libjpeg，libpng，libtiff和libjasper）。 
			因此，OpenCV始終可以讀取JPEG，PNG和TIFF。 
			在MacOSX上，還可以選擇使用本機(jī)MacOSX圖像讀取器。 
			但是請注意，由于MacOSX中嵌入了色彩管理，當(dāng)前這些本機(jī)圖像加載器會為圖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版本和其他類似Unix的開源操作系統(tǒng)上，OpenCV會尋找OS映像隨附的編解碼器。 
			安裝相關(guān)的軟件包（不要忘記在Debian \ *和Ubuntu \ *中忘記開發(fā)文件，
			例如“ libjpeg-dev”）以獲得編碼解碼器支持或在CMake中打開OPENCV_BUILD_3RDPARTY_LIBS標(biāo)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中將* WITH_GDAL *標(biāo)志設(shè)置為true并使用@ref IMREAD_LOAD_GDAL加載圖像，則將使用[GDAL]（http://www.gdal.org）驅(qū)動程序?qū)D像進(jìn)行解碼，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.
			如果將EXIF信息嵌入到圖像文件中，則將考慮EXIF方向，
			因此，除非傳遞了@ref IMREAD_IGNORE_ORIENTATION標(biāo)志，否則圖像將相應(yīng)旋轉(zhuǎn)。
			
	    .   -   Use the IMREAD_UNCHANGED flag to keep the floating point values from PFM image.
	    		使用IMREAD_UNCHANGED標(biāo)志保留PFM圖像中的浮點值。
	    		
    .   -   By default number of pixels must be less than 2^30. Limit can be set using system
    .   variable OPENCV_IO_MAX_IMAGE_PIXELS
    		默認(rèn)情況下，像素數(shù)必須小于2 ^ 30。 可以使用系統(tǒng)變量OPENCV_IO_MAX_IMAGE_PIXELS設(shè)置限制
    .   
    .   @param filename Name of file to be loaded. 要加載的文件名。
    .   @param flags Flag that can take values of cv::ImreadModes 可以采用cv :: ImreadModes值的標(biāo)志
    """
    pass