[英]load an image from an url using opencv and cURL
I am trying to load an image from an url and display it.I am using opencv in c++ and cURL libraries.I am used to working with opencv,but I don't have any experience working with cURL libraries. 我试图从URL加载图像并显示它。我在c ++和cURL库中使用opencv。我曾经使用过opencv,但是我对使用cURL库没有任何经验。 I just need curl to load an image and save it in a cv::Mat file, so that I could display it.
我只需要卷曲就可以加载图像并将其保存在cv :: Mat文件中,以便可以显示它。 So, I took code from here .It is supposed to be working,but I am getting syntax errors.
因此,我从这里获取了代码。应该可以使用,但是却遇到语法错误。 Also,I tried this code from opencv.org.
另外,我尝试了来自opencv.org的这段代码。 But,I am getting same errors
但是,我遇到了同样的错误
Errors are 1>c:\\program files (x86)\\microsoft visual studio 10.0\\vc\\include\\cmath(19): error C2061: syntax error : identifier 'acosf' 错误是1> c:\\ program files(x86)\\ Microsoft Visual Studio 10.0 \\ vc \\ include \\ cmath(19):错误C2061:语法错误:标识符'acosf'
1>c:\\program files (x86)\\microsoft visual studio 10.0\\vc\\include\\cmath(19): error C2059: syntax error : ';' 1> c:\\ program files(x86)\\ Microsoft Visual Studio 10.0 \\ vc \\ include \\ cmath(19):错误C2059:语法错误:';'
and about 90 syntax errors.When I click on errors it is opening cmath file and I cant find any syntax errors there. 大约有90个语法错误。当我单击错误时,它正在打开cmath文件,而我在那里找不到任何语法错误。
Thank you for the help. 感谢您的帮助。
EDIT 1: I compiled the code as c++ and got rid of the above errors.Now I got a new error 编辑1:我将代码编译为c ++并摆脱了以上错误。现在我得到了一个新错误
OpenCV Error: Assertion failed (buf.data && buf.isContinuous()) in cv::imdecode_, file ........\\opencv\\modules\\highgui\\src\\loadsave.cpp OpenCV错误:断言失败(buf.data && buf.isContinuous())在cv :: imdecode_,文件........ \\ opencv \\ modules \\ highgui \\ src \\ loadsave.cpp中
It looks like you are compiling for c
and not c++
. 看起来您正在为
c
而不是c++
进行编译。 Check two things: 检查两件事:
.cpp
and not .c
. .cpp
而不是.c
。
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