Copy Cv Mat To Iplimage

You have cv mat old iplimage copy old. It is more efficient than manually converting the pixels to the qimage but you have to keep the original cv mat image in memory. So when you do a regular copy such as.

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Iplimage ipl.

Copy cv mat to iplimage.

Cv mat is a header that points to a data pointer which holds the actual image data. You work with new as an originally declared iplimage. Although cv mat does support the usage of iplimage in the constructor parameters the default library does not provide function for the other way. Default additional arguments.

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. Cv mat m cv cvarrtomat ipl. Use a copy constructor or assignment operator where there can be an array or expression on the right side see below. So mat dims is always 2 can also be 0 when the array is empty.

Iplimage new image copy. Do remember that you need to allocate the iplimage structure which is lack. Taking a look at core src matrix cpp it seems that indeed the constructor cv mat iplimage has disappeared. Cv mat a b.

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. You will need to extract the image header information manually. But i found this alternative. It also implements reference counting.

A will point to b s data and the reference count for it will be incremented. Qimage img uchar mat data mat cols mat rows qimage format rgb32. Cv mat is the new type introduce in opencv2 x while the iplimage is the legacy image structure. It holds the number of cv mat headers currently pointing to that data pointer.

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