针对你提出的“undefined reference to `jpeg_std_error'”问题,我们可以从以下几个方面进行排查和解决: 确认jpeg_std_error函数的来源库: jpeg_std_error 函数是来自于 libjpeg 库,这是一个用于处理 JPEG 图像的库。如果你在使用这个函数时遇到了链接错误,很可能是因为你的项目没有正确链接到 libjpeg 库。 检...
encode.o: In function `Bmp2Jpg(char const*, char const*, int, int)': encode.cpp:(.text+0x5ac): undefined reference to `jpeg_std_error(jpeg_error_mgr*)' encode.cpp:(.text+0x5cc): undefined reference to `jpeg_CreateCompress(jpeg_compress_struct*, int, unsigned int)' encode.cpp:(...
答案是：通过引用计数机制（reference counting mechanism）来实现，由最后一个使用它的对象来清空。每次拷...
error C2504: 'CDialogEx' : base class undefined 2015-12-23 18:15 −... sev 0 2462 undefined reference to `jpeg_std_error(jpeg_error_mgr*) 2012-12-25 22:42 −背景 linux + QT BMP图片转JPG #include <jpeglib.h> 编译错误: root@happy-virtual-machine:/home/happy/Lee/Detector2# make...
undefined reference to `jpeg_std_error(jpeg_error_mgr*) 2012-12-25 22:42 −背景 linux + QT BMP图片转JPG #include <jpeglib.h> 编译错误: root@happy-virtual-machine:/home/happy/Lee/Detector2# make arm-linux-g++ -Wl,... WHISHT
当遇到undefined reference to symbol ‘_ZN2cv7imwriteERKNS_6StringERKNS_11_InputArrayERKSt6vectorIiSaIiEE‘这个错误时,通常是因为在编译和链接时没有正确地指定OpenCV库文件。下面是一个示例代码,展示了如何使用OpenCV的imwrite函数来保存图像。 首先,你需要确保你的系统已经安装了OpenCV,并正确配置了环境。
.build_release/lib/libcaffe.so: undefined reference to WebPEncodeLosslessBGRA' .build_release/lib/libcaffe.so: undefined reference tojpeg_std_error' .build_release/lib/libcaffe.so: undefined reference to jas_image_destroy' .build_release/lib/libcaffe.so: undefined reference tojpeg_CreateDecompress...
So in every function there should be no '__declspec' command because the define is empty. This leads to the desricbed error. After your hints I tested it with deleting also the dllimport in the second branch (althrough not used at all). Now it works. Strange behaviour....
Note that, when you call jpeg_std_error(), a pointer to jpeg_std_message_table[] is returned in err->jpeg_message_table. That is the correct way to access jpeg_std_message_table[]. After calling jpeg_std_error(), your code can then override the error_exit(), emit_message(), outp...
grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x6fc): undefined reference to `cv::cvtColor(cv::_InputArray const&, cv::_OutputArray const&, int, int)' /usr/bin/ld: //usr/local/lib/libopencv_imgcodecs.a(grfmt_pfm.cpp.o): in function `cv::PFMDecoder::read...