Opencv操作和在qt中添加opencv库的方法

太过爱你忘了你带给我的痛 2023-07-19 10:34 2阅读 0赞

# 1.新建一个二值化图像，灰度图像，彩色图像 #

# 2.清空一个图像为空白图像 #

# 3.在qt中添加opencv #

pro中的代码模板如下，根据自己的opencv版本修改。

INCLUDEPATH += $$PWD/opencv3.4_gpu/include\
                   $$PWD/opencv3.4_gpu/include/opencv\
                   $$PWD/opencv3.4_gpu/include/opencv2
    
    CONFIG(debug, debug|release): {
    LIBS += -L$$PWD/opencv3.4_gpu/x64/vc14/lib\
    -lopencv_aruco340d\
    -lopencv_bgsegm340d\
    -lopencv_bioinspired340\
    -lopencv_bioinspired340d\
    -lopencv_calib3d340\
    -lopencv_calib3d340d\
    -lopencv_ccalib340d\
    -lopencv_core340d\
    -lopencv_cudaarithm340\
    -lopencv_cudaarithm340d\
    -lopencv_cudabgsegm340\
    -lopencv_cudabgsegm340d\
    -lopencv_cudacodec340\
    -lopencv_cudacodec340d\
    -lopencv_cudafeatures2d340\
    -lopencv_cudafeatures2d340d\
    -lopencv_cudafilters340\
    -lopencv_cudafilters340d\
    -lopencv_cudaimgproc340\
    -lopencv_cudaimgproc340d\
    -lopencv_cudalegacy340\
    -lopencv_cudalegacy340d\
    -lopencv_cudaobjdetect340\
    -lopencv_cudaobjdetect340d\
    -lopencv_cudaoptflow340\
    -lopencv_cudaoptflow340d\
    -lopencv_cudastereo340\
    -lopencv_cudastereo340d\
    -lopencv_cudawarping340\
    -lopencv_cudawarping340d\
    -lopencv_cudev340\
    -lopencv_cudev340d\
    -lopencv_datasets340\
    -lopencv_datasets340d\
    -lopencv_dnn340\
    -lopencv_dnn340d\
    -lopencv_dpm340\
    -lopencv_dpm340d\
    -lopencv_face340d\
    -lopencv_features2d340\
    -lopencv_features2d340d\
    -lopencv_flann340d\
    -lopencv_fuzzy340d\
    -lopencv_highgui340d\
    -lopencv_imgcodecs340\
    -lopencv_imgcodecs340d\
    -lopencv_imgproc340d\
    -lopencv_img_hash340d\
    -lopencv_line_descriptor340\
    -lopencv_line_descriptor340d\
    -lopencv_ml340d\
    -lopencv_objdetect340\
    -lopencv_objdetect340d\
    -lopencv_optflow340d\
    -lopencv_phase_unwrapping340d\
    -lopencv_photo340d\
    -lopencv_plot340d\
    -lopencv_reg340d\
    -lopencv_rgbd340\
    -lopencv_rgbd340d\
    -lopencv_saliency340d\
    -lopencv_shape340d\
    -lopencv_stereo340d\
    -lopencv_stitching340d\
    -lopencv_structured_light340\
    -lopencv_structured_light340d\
    -lopencv_superres340d\
    -lopencv_surface_matching340d\
    -lopencv_text340d\
    -lopencv_tracking340d\
    -lopencv_video340\
    -lopencv_video340d\
    -lopencv_videoio340\
    -lopencv_videoio340d\
    -lopencv_videostab340\
    -lopencv_videostab340d\
    -lopencv_viz340d\
    -lopencv_xfeatures2d340\
    -lopencv_xfeatures2d340d\
    -lopencv_ximgproc340d\
    -lopencv_xobjdetect340\
    -lopencv_xobjdetect340d\
    -lopencv_xphoto340d\
    -lglut32\
    -lsift_gpu\
    } else:CONFIG(release, debug|release): {
    LIBS += -L$$PWD/opencv3.4_gpu/x64/vc14/lib\
    -lglut32\
    -lopencv_aruco340\
    -lopencv_bgsegm340\
    -lopencv_ccalib340\
    -lopencv_core340\
    -lopencv_face340\
    -lopencv_flann340\
    -lopencv_fuzzy340\
    -lopencv_highgui340\
    -lopencv_imgproc340\
    -lopencv_img_hash340\
    -lopencv_ml340\
    -lopencv_optflow340\
    -lopencv_phase_unwrapping340\
    -lopencv_photo340\
    -lopencv_plot340\
    -lopencv_reg340\
    -lopencv_saliency340\
    -lopencv_shape340\
    -lopencv_stereo340\
    -lopencv_stitching340\
    -lopencv_superres340\
    -lopencv_surface_matching340\
    -lopencv_text340\
    -lopencv_tracking340\
    -lopencv_viz340\
    -lopencv_ximgproc340\
    -lopencv_xphoto340\
    -lsift_gpu\
    }

## 1.将编译后的opencv放置在项目文件夹下 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70][]

## 2.在pro文件中添加头文件和lib文件 ##

由于是在项目目录下，所以用到了$$PWD

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 1][]

**注意：我这个版本的lib文件集合在opencv\_world343d里面了，有些时候大家编译的lib文件是非常零散的。如下图所示。**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 2][]

## PS:快速添加方法： ##

使用cmd进入lib文件所在路径下，运行——**dir /b \*.lib>1.xlsx**

即可得到所有的lib文件，保存在execl的不同行，这个方法比保存成txt好，因为可以通过excel筛选得到自己真正想要的lib

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 4][]

pro文件添加lib需要前面加-l，首先给所有的项前面加-l。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 6][]                                ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 7][]

末尾所需的\\   也是同样的道理。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 8][]                        ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 9][]

然后去掉所有的.lib后缀。——通过替换的方法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 10][]

通过查找d 字符选中所有的调试lib。**图文可能不符合，以文字说明为准。**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 11][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tpc3Nnb29kYnllMjAxMg_size_16_color_FFFFFF_t_70 12][]

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## 4.dll文件放在C盘的C:\\Windows\\System32 ##

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