How to convert bitmap to IplImage in JavaCV?

Question

Android

Hello. When porting an OpenCV application from C++ to Android, I ran into a problem.
I have a bitmap image that I need to convert to IplImage for further work. I tried to do it like this:

void preparingBeforeFindContours(Bitmap image){
        Igray = IplImage.create(image.getWidth(),image.getHeight(), IPL_DEPTH_8U, 1);
        image.copyPixelsToBuffer(Igray.getByteBuffer());

but the application crashes with an error:
Caused by: java.lang.RuntimeException: Buffer not large enough for pixels
Are there any alternative ways to convert or MB how can I increase the buffer size?

Answer 1

create takes the number of channels as the last parameter. In my opinion , in android it is impossible to create a bitmap with one channel. That's where they don't fit.
PS Isn't it easier for you to use NDK and not rewrite everything in Java?