‘CV_LOAD_IMAGE_GRAYSCALE’ was not declared in this scope

由于OpenCV版本差异导致变量没有定义

‘CV_LOAD_IMAGE_GRAYSCALE’ was not declared in this scope
‘CV_LOAD_IMAGE_UNCHANGED’ was not declared in this scope
‘CV_MINMAX’ was not declared in this scope

解决方案

• 按照报错的提示修改为自己版本的变量名称