Closed blackredscarf opened this issue jan 24 2018 14 comments closed.
Emgu cv convert mat to inputarray.
The get property provide a more efficient way to convert image gray byte image bgr byte and image bgra byte into bitmap such that the image data is shared with bitmap.
How to convert between mat and byte 888.
If you look at its implementation you will find that it supports not only std vector mat but also types like mat matx std.
Thank you for the response.
Copy link quote reply author blackredscarf commented jan 29 2018.
If you are interest in using image class you can checkout.
If some of the input arrays may be empty pass cv noarray or simply cv mat as you probably did before.
If you change the pixel value on the bitmap you change the pixel values on the image object as well.
If its usage is restricted to std vector cv mat why don t we pass it to a function directly instead of adding an indirection here.
Open cv 3 0 has been changed the c interface that use iplimage has been slowly phased out and the c interface that utilize mat is recommended in this release.
When you see in the reference manual or in opencv source code a function that takes inputarray it means that you can actually pass mat matx vector t etc.
When the operation mask is specified and the mat create call shown above reallocated the matrix the newly allocated matrix is initialized with all zeros before copying the data.
You can use also for mat type remember to use nuget emgu runtime window or you can t use this library using emgu cv.
The cpu variant initializes all values to zero while the.
Image gray byte image bitmapextension toimage bitmapimage bitmap bitmapimage image tobitmap.
In 3 0 release emgu cv has adapted to use the mat class as a result.
Emgu cv is a cross platform net wrapper to the opencv image processing library.
The doc of mat copyto void mat copyto outputarray m inputarray mask const says.
Mat img2 new mat rows cols cv 8uc channels new bytepointer b.
In fact the method void inputarray getmatvector std vector mat mv const is not documented at all.
See above the complete list.
