Cv Mat To Cv Mat1b

Cv mat1b submain const cv mat3b img cv mat tmp img clone.

Cv mat to cv mat1b.

Inside my class operateimage in all methods i use cv mat format. I want to convert th result torch tensor to cv mat using the follow code but the resultimg is wrong i have checked the tensor result it is right torch tensor out tensor module forward inputs totensor. It will be fine if you change it to e g. 6 answers 6 解决方法.

The colour conversion is done by ffmpeg rather than by opencv. Although cv mat does support the usage of iplimage in the constructor parameters the default library does not provide function for the other way. You will need to extract the image header information manually. C opencv image processing mat i want to match my code into a given interface.

When putting it in submain function which uses cv mat3b and returns cv mat1b it does not work. The idea is that you feed a mat into this function that can likely be reused since in most cases successive video frames will have the same dimensions. Do remember that you need to allocate the iplimage. Cv mat is the new type introduce in opencv2 x while the iplimage is the legacy image structure.

It does not have any extra data fields. However if the format changes or if you pass an uninitialised mat it will be allocated to the right size. The input parameter of submain is a const cv mat3b however you re trying to modify its header to change it to be a mat1b inside the function. Include opencv2 core cvstd hpp makeptr t is equivalent to ptr t new t it is shorter than the latter and it s marginally safer than using a.

The class mat tp is a thin template wrapper on top of the mat class.