To convert from cv mat to qimage you could try to use the qimage uchar data int width int height format format constructor as follows mat is a cv mat.
Copy cv mat to iplimage.
Iplimage new image copy.
Do remember that you need to allocate the iplimage structure which is lack.
Qimage img uchar mat data mat cols mat rows qimage format rgb32.
I would be able to run the iplimage to mat conversion but i am getting problem with mat to iplimage program i am running the following code in vs 2008 using opencv 2 4 6.
A will point to b s data and the reference count for it will be incremented.
Default additional arguments.
But i found this alternative.
Cv mat a b.
So mat dims is always 2 can also be 0 when the array is empty.
You will need to extract the image header information manually.
It passes the number of dimensions 1 to the mat constructor but the created array will be 2 dimensional with the number of columns set to 1.
It also implements reference counting.
This answer edited sep 30 13 at 15 29 xocoatzin 2 480 1 18 37 answered feb 24 13 at 2 07 user2103629 91 1 1 this is the best way and it works as like a charm.
Taking a look at core src matrix cpp it seems that indeed the constructor cv mat iplimage has disappeared.
It is more efficient than manually converting the pixels to the qimage but you have to keep the original cv mat image in memory.
Use a copy constructor or assignment operator where there can be an array or expression on the right side see below.
Iplimage ipl.
Cv mat is the new type introduce in opencv2 x while the iplimage is the legacy image structure.
Cv mat is a header that points to a data pointer which holds the actual image data.
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 work with new as an originally declared iplimage.
It holds the number of cv mat headers currently pointing to that data pointer.
All the other ways are too complicated and this is the best one.
Thanks for this article.