【OpenCV】imread读取数据为空的解决方案（被坑了一下午）

解决方案：http://blog.youkuaiyun.com/daisy327/article/details/12755757

之前配置时为了省事儿，无论是Debug还是Release中的附加依赖项，都添加了所有的lib，也就是没有分Debug和Release。但实际上OpenCv是要分的，文件名尾带d的为Debug库函数，不带d的为Release库函数。只需将其中库函数分开添加进附加依赖项即可：

Debug库：

opencv_calib3d244d.lib
opencv_contrib244d.lib
opencv_core244d.lib
opencv_features2d244d.lib
opencv_flann244d.lib
opencv_gpu244d.lib
opencv_highgui244d.lib
opencv_imgproc244d.lib
opencv_legacy244d.lib
opencv_ml244d.lib
opencv_nonfree244d.lib
opencv_objdetect244d.lib
opencv_photo244d.lib
opencv_stitching244d.lib
opencv_ts244d.lib
opencv_video244d.lib
opencv_videostab244d.lib

Release库：

opencv_calib3d244.lib
opencv_contrib244.lib
opencv_core244.lib
opencv_features2d244.lib
opencv_flann244.lib
opencv_gpu244.lib
opencv_highgui244.lib
opencv_imgproc244.lib
opencv_legacy244.lib
opencv_ml244.lib
opencv_nonfree244.lib
opencv_objdetect244.lib
opencv_photo244.lib
opencv_stitching244.lib
opencv_ts244.lib
opencv_video244.lib
opencv_videostab244.lib

这样修改后，再运行程序，就能够正常读取图片啦！