源码修改

文件：E:\software\opencv\openCV411\sources\modules\imgcodecs\src\loadsave.cpp

static const size_t CV_IO_MAX_IMAGE_PARAMS = cv::utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_PARAMS", 50);
static const size_t CV_IO_MAX_IMAGE_WIDTH = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_WIDTH", 1 << 20);
static const size_t CV_IO_MAX_IMAGE_HEIGHT = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_HEIGHT", 1 << 20);
static const size_t CV_IO_MAX_IMAGE_PIXELS = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_PIXELS", 1 << 30);//修改为下面
static const size_t CV_IO_MAX_IMAGE_PIXELS = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_PIXELS", size_t(1) << 31);

E:\software\opencv\openCV411\sources\modules\imgcodecs\src\grfmt_tiff.cpp

const uint64_t MAX_TILE_SIZE = (CV_BIG_UINT(1) << 30);//
const uint64_t MAX_TILE_SIZE = (CV_BIG_UINT(6) << 30);// 修改为6GB (6 * 1024 * 1024 * 1024 bytes)

E:\software\opencv\openCV411\sources\modules\imgcodecs\src\grfmt_bmp.cpp

  // FIXIT: use safe pointer arithmetic (avoid 'int'), use size_t, intptr_t, etc
    CV_Assert(((uint64)m_height * m_width * nch < (CV_BIG_UINT(1) << 30)) && "BMP reader implementation doesn't support large images >= 1Gb");

//修改为
  // FIXIT: use safe pointer arithmetic (avoid 'int'), use size_t, intptr_t, etc
    CV_Assert(((uint64)m_height * m_width * nch < (CV_BIG_UINT(6) << 30)) && "BMP reader implementation doesn't support large images >= 6Gb");

编译

opencv源码

参考 OpenCV_contrib配置教程（详细版）

在官网下载opencv411源码，和cmake gui

其中 E:\software\opencv\openCV411\sources是源码，要编译的
E:\software\opencv\openCV411\build build文件夹是自己新建的，存放编译输出内容

如下图所示：点击configure，出现图片中最下面几行，白色，没有红色的error就是成功

opencv_contrib

非必要操作，用不到opencv_contrib的可以不下载

下载opencv_contrib源码放到：E:\software\opencv\opencv_contrib-4.11.0
勾选 build_opencv_world

勾选 opencv_extra_modiles
opencv_extra_modiles_path填入下载扩展库的modules路径

再次点击 configure没有报错之后，点击generate

会在E:\software\opencv\openCV411\build 生成很多vs文件
打开OpenCV.sln，点击生成->batch生成，按照下面步骤生成

需要等很久

vs2019项目配置

包含目录：
E:\software\opencv\openCV411\build\include
E:\software\opencv\openCV411\build\include\opencv2

E:\software\opencv\openCV411\build\install\include\opencv2\

库目录：
E:\software\opencv\openCV411\build\x64\vc16\lib

链接器输入：opencv_world4110d.lib（debug）

opencv_contrib安装

环境变量 E:\software\opencv\openCV411\build\install\x64\vc16\bin

opencv_shape4110.lib