Copy Cv Mat To Iplimage

Use a copy constructor or assignment operator where there can be an array or expression on the right side see below. 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. Cv mat is a header that points to a data pointer which holds the actual image data.

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Cv mat a b.

Copy cv mat to iplimage.

So mat dims is always 2 can also be 0 when the array is empty. Although cv mat does support the usage of iplimage in the constructor parameters the default library does not provide function for the other way. It holds the number of cv mat headers currently pointing to that data pointer. 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.

Qimage img uchar mat data mat cols mat rows qimage format rgb32. Iplimage new image copy. Cv mat is the new type introduce in opencv2 x while the iplimage is the legacy image structure. You will need to extract the image header information manually.

But i found this alternative. Iplimage ipl. Thanks for this article. 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.

All the other ways are too complicated and this is the best one. 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. 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.

Cv mat m cv cvarrtomat ipl. You work with new as an originally declared iplimage. It also implements reference counting. So when you do a regular copy such as.

A will point to b s data and the reference count for it will be incremented. You have cv mat old iplimage copy old. Default additional arguments. Do remember that you need to allocate the iplimage structure which is lack.